the cover: Keith Spreuer’s Subaru Powered Cozy.
Supervee Air Sports.— Ed
Fisher tells the history behind Supervee VW-powered race planes and how
he’s bringing the sport back to the homebuilder’s community.
Type 1 Volkswagen Engines.— B.W. Stone covers the construction of the 1835-cc Volkswagen engine he built for his Volksplane VP-1 that appeared in CONTACT! Magazine issue #107, allowing us to learn from his experiences.
Chrysler’s 6.2L Hellcat V8—707 Supercharged Horsepower.— Developed for the street, Chrysler converts a robust iron-block truck engine into a high-powersupercharged engine that’s built to last.
Changing Experimental Amateur-built Aircraft Operating Limitations. — EAA
answers a question sent by a member, concerning aircraft operating
limitations. We find that the answer is self-explanatory. Reprinted by
AeroCarb or AeroInjector?. — As
a sidebar to B.W. Stone’s VW engine article, he details the subtle
differences between the two billet aluminum carbs offered by
Subaru Powered Cozy.— Keith Spreuer tells his story of losing a head gasket hundreds of miles from home and the way he went aboutthe repair.
The Ross PSRU.— Keith Spreuer details the modifications he had to undertake with his orphaned Ross PSRU, keeping it running.
13th Alternative Engine Round-up, French Valley California.— Once
again we’re planning to host our annual gathering Saturday, September
24, 2016. Please join us at the French Valley Airport near Temecula
California! The fine people from EAA Chapter 1279 have again offered to
cohost our annual fly-in.
Pete Plumb’s Pegasus DP-1O-100 Prototype.— CONTACT! Magazine’s
editor, Patrick Panzera had the pleasure of meeting Pete Plumb at EAA
AirVenture 2012 and has followed his progress creating his O-100, a
half O-200 that uses O-200 parts.
Flying the Thatcher CX4 and CX5 Prototypes.—CONTACT! Magazine’s
editor Patrick Panzera spent a winter weekend in Pensacola Florida test
flying both the well proven Thatcher CX4 and the newest addition, the
two-place Thatcher CX5.
Ford Coyote 5.0L
(302 cubic inches) 412 HP Crate Engine.— Another
fire-breathing V8 crate engine that should make a great auto conversion
for experimental aircraft.
RENO 2014. — Richard Lewis
became the proverbial “fly on the wall” during a dispute between
officials and a pilot who was disqualified. His report on this is
12th Annual Alternative Engine Round-Up— The fine
people from EAA Chapter 1279 have stepped up and offered to cohost our
annual fly-in. This years event will be held on Saturday, September
26th, at the French Valley Airport near Temecula California.
On the cover:
A 12-year-old passenger gets her first aerial view of the Brodhead
Wisconsin countryside from the front cockpit of Dan Helsper's
beautiful Ford A powered Air Camper during the 2012 Pietenpol
fly-in. Photo by Jon Apfelbaum
Helsper’s Ford A Powered Pietenpol.— Oscar
Zuniga introduces us to a special Pietenpol built by Dan Heslper, who
did his best to stick to the plans wherever practical, including the
Pietenpol patriarch Donald “Doc” Mosher tells of some of the inside
tips that help fill in the gaps left out of the various Pietenpol plan
sets currently available.
Gas?— Steve Williamson, President of EAA
based at French Valley Airport, gives us a little insight into the
traps that can arise when building a plane as a chapter, and details
the fuel system in the Pietenpol they built.
1937 Pietenpol Air Camper NX308MB— Gary Boothe
shares hisstory of
building this simple yet elegant version of Bernard Pietenpol’s
Corvair-powered Air Camper, as a tribute to his father.
Bacon’s Turbo Subaru EA-82T Pietenpol Air Camper— Oscar
Zuniga presents the tale of “Mountain Piet,” a straightforward
incarnation designed to be flown from a field in Colorado with a
summertime density altitude approaching 11,000 feet.
Air Camper— Oscar
Zuniga highlights some of the many details that makes this Air Camper
unique, including the Mitsubishi forklift engine that was overhauled
before being adapted to its new chore of powering a classic bird.
11th Annual Alternative Engine Round-Up—
The fine people from EAA Chapter 1279 have stepped up and offered to
cohost our annual fly-in. This years event will be held on Saturday,
September 27th, at the French Valley Airport near Temecula California.
The Thatcher CX5 prototype right at the 40 hour mark during FAA Phase 1
flight testing. Pilot: Glen Bradley. Photographer: Sheldon
Heatherington. Photo plane pilot: Jim WilsonPhoto plane: Legend Cub.
the Thatcher CX5.— Dr.
Glen Bradley tells of his experiences helping David Thatcher build the
prototype and flying the FAA Phase 1 flight testing.
B. W. Stone brings us his perspective on the single-seat Volksplane,
outlining both its good and bad qualities as he answers the question,
why (or why not) the Volksplane?
The Volksplane?— In this sidebar, B. W. Stone lists the reasons
he decided to build his Volksplane.
The Volksplane.— Helpful hints for Volksplane builders.Through
the build process, B. W. Stone developed some interesting ways to
create a better finished product and he shares some of these ideas with
E-MAG “P” Model.— Jeff Scott and CONTACT!
Editor Oscar Zuniga introduce us to an electronic magneto replacement
for certified-type aircraft engines, complete with an operational
report conducted on an O-200 powered KR-2S
Terry Kronk's 530 hp GM LS-6 powered, two-seat, all
aluminum, scratch-built 80% scale CA-18 (Aussie-built NAA
P-51D), Gatton Airpark, Gatton, Queensland, just outside Brisbane
Australia. Photo: Christine Gray
Mick Myal.— This
issue is dedicated to the memory of our founding editor and publisher,
Kronk’s P-51D Mustang Replica.— Martin Hone tells the story of
an incredible builder and the various projects he’s completed,
spotlighting this beautiful Mustang.
Zuniga shows us theDynaVibe, an economical,
state-of-the-art dynamic propeller balancer designed specifically for
the aircraft industry.
Remembering Mick Myal.—
This issue is dedicated to the memory of our founding editor and
publisher, Mick Myal.
Terry Kronk’s P-51D
Mustang Replica.— Martin Hone tells the story of an
incredible builder and the various projects he’s completed,
spotlighting this beautiful Mustang.
Oscar Zuniga shows us the DynaVibe, an economical,
state-of-the-art dynamic propeller balancer designed specifically for
the aircraft industry.
Direct Injection, Turbocharged Cadillac ATS Engine.— A new
high-performance 2.0 liter turbocharged four-cylinder engine (2.0T)
debuted in the all-new 2013 Cadillac ATS compact luxury sedan, and it
might be a good candidate for conversion with its 272 hp @ 5500 rpm and
260 lb-ft of torque @ 1700 rpm.
V8-Powered Reno Racer.— Jack Kane, the CEO of EPI Inc. helps
get reliable V8 power to the front of this beautiful, purpose-built
Drives Moves Forward.— Stuart Davis has picked up where the
late Bud Warren left off, returning the Geared Drives PSRU to market,
but with substantial improvements.
2012; Mission Accomplished!.— Len Bechtold brings to life the
sights and sounds of the 2012 Reno National Championship Air Races.
Aberle’s PHANTOM and the Elippse Propeller.— Len Bechtold
reports on the current state of affaires of the award-winning Phantom
biplane and its super-efficient Elippse propeller.
Andrew Elliott in his CH601XL over the Salt River in the Tonto National
Forest. Photo was shot by Zeigh Owensby from the back seat of N566U, an
RV-8 built and flown by Ron Smith.
Flying Behind A Corvair.— Andrew Elliott tells the story
behind deciding to build an experimental aircraft, what drove him to
choose the CH601, and why he installed a Corvair— and all the fun he’s
had with it thus far.
Executing a Professional First Flight.— William Wynne outlines a solid
plan to help us complete our first flight professionally and
Flight Testing Like A Professional.— Andrew Elliot spells out the
keys to a successful flight test regime, and includes worksheets along
with tips from his test period.
A Change in
Perspective; From Homebuilder to Pilot.— Phil Maxson tells of the joys of
bringing his creation to life and proving that it’s more than a dream
to fly something he built with his hands.
Kantor, as a CFI and a homebuilder who found himself in need of a check
out, makes the argument for getting time-in-type before flying your new
homebuilt for the first time.
a Decade of Corvair Powered Zeniths.— William Wynne makes an
interesting observation as to why many airframe manufacturers seem to
be against alternative engines.
Designing the Future of Experimental Aviation for Forty Years.— Jim Cavanagh pays homage to
Chris Heintz in this short biography that tells the story of Zenith
Aircraft Company and the aircraft plans and kits offered.
Book Report: Flying On Your
Own Wings, By Chris Heintz.— John Moyle gives us a brief
look at the semi-autobiographical, but mostly technical writing
designed for the first-time airplane designer to design, build and fly
a unique experimental aircraft.
On the cover: Bruce King in his BK1
prototype, now set for plans delivery.
Don’t Give Up Your Dreams.— Bruce King describes the journey
he took to arrive at a homebuilt aircraft designed for those who want
to have a fun yet affordable and practical airplane.
Walterson’s Dragonfly C-FLYV.— One of the original
direct-drive, intercooled, turbocharged Subaru engines to successfully
fly has been humming away for 15 years. Chris offers this update.
New Skyactiv-D Diesel Engine from Mazda.— Mazda does it again
by developing a small, lightweight but powerful diesel engine utilizing
advanced technology. This time they’ve dropped the compression ratio to
14:1 and eliminated a lot of weight in the process.
On the cover: Ben Hass’ Zenith 801 on the
ramp at Jackson Hole, Wyoming.
Loss Of A Pioneer.— We
say goodbye to our good friends Budd Warren and his daughter Phyllis
Eggenfellner Gearbox Problems? Meet The Alternative.— Optimistically written and
submitted before their passing, Bud Warren and Phyllis Ridings detail
their 200Z PSRU for Subaru.
Small Block Ford Powered Zenith CH 801.— Ben Hass has had great success
with his firewall-forward V8 installation in his first attempt to build
an experimental plane. Having overcome a failed
PRSU, things are now working well for him.
New Skyactiv Engine from Mazda.— Mazda does it again by
developing a small, lightweight but powerful engine utilizing advanced
technology. This time they’ve upped the compression ratio to 14:1 and
eliminated detonation with direct injection.
Suzuki G10 Conversion For The BD-5.— Mark ter Keurs does an excellent
job describing what it takes to convert a normally aspirated Suzuki
three-cylinder engine into a turbocharged aircraft engine suitable for
Slowdown And The Propeller.— Written shortly before his
passing, Paul Lipps dispels the concern for air slowing down before
reaching the propeller, in both tractor and pusher aircraft.
Sherwood’s short biography of graphic artist Jim Ewen, paying tribute
to his contributions to CONTACT! Magazine over the years.
the 7th Annual Alternative Engine Round-Up, Jean NV, March 26-28.— It's that time again, time for
CONTACT! Magazine’s annual gathering. Join us this year for another
outstanding weekend of good friends and experimental aviation.
Three-Rotor 20B RV-8.— Another successful rotary engine
installation by renowned rotary guru, Tracy Crook.
Sturgill’s Personal Cruiser, Part III.— The third in the series of
brief articles detailing Bruce’s progress as he “beta-builds”
his Personal (Corvair) Cruiser.
Thoughts About Supercharging.— Paul Lipps asks and answers some
simple questions about forced induction.
of Jim Ewen.
4.3L Chevrolet V-6 Powered RV-6A.— Stan Pitts updates us with this
success story, detailing the complete disassembly and rebuild of the
engine and PSRU, finding very little that needs replacing.
Drives New Subaru Redrive.— Phyllis Ridings reports on Bud
Warren’s latest developments with his newest creation, a
zero-offset drive, complete with its own oil pump and the ability to
accept a traditional prop governor.
Sherwood’s Subaru EG-33 Powered Glasair 1RG.— Russell Sherwood recounts his
journey to a successful auto conversion that took him through two
PSRU’s and one hurricane. His simple approach to the design of his
cooling system is quite revealing and somewhat amusing.
On the cover: Scott Carter and Lynn Canatella
pilot Xtra EZ over the suburban area of Dallas TX. Photo by Jay C Harris
Carter’s Xtra EZ.—
Starting with Cozy Mark 4 plans, and with a drive to keep everything as
“Rutan” as possible, while incorporating all the successful innovations
to come along during the 30+ years since the first set of EZ plans were
sold, Scott has created a beautiful and functional tribute to Burt
Details from Mazda on their next generation rotary engine. This time
Lehman's Marcotte PSRU.— Ken Lehman's Murphy Rebel
appeared on the cover of issue 91. Ken has sent us an update detailing
his experience with the Marcotte PSRU and the stock 1997 Subaru EJ22
On the cover:
Sorensen's BF9-2, piloted by Danny Sorensen, shot during AirVenture
2009 by EAA photographer Bonnie Kratz.
COPPERSTATE; Not too big,
not too small.— Blatant support of our favorite commercial
fly-in, including a list of alternative engine forum presentations.
BF9-2.— Danny Sorensen tells his story of bring a
dream to reality. Not content with his Pitts, Danny clean-slated a
fully aerobatic biplane powered by the Russian-built M14-P 9 cylinder
radial engine, usually found on the nose of a Yak.
Vampire Report.— Despite the serious setback from
the loss of their prototype, the new Vampire is refined, sleeker, and
now powered with a six-cylinder Jabiru.
ask again, Will it Fly?—Scott Hinton.— The newest member of
the Board of Directors, Scott’s volunteer efforts will aid in an
administrative capacity, freeing your editor to be creative and
General Motors LF1 3.0L Direct Injection V6 VVT.— Direct
injection and variable valve timing give this all-aluminum, OHV
four-valve-per-cylinder V6, 260 available ponies.
the Desk of RotaMax President, Eric Barger.— Straight from
the source, Eric Barger explains the current state of RotaMax and how
the crash of the Sadler Vampire prototype has affected them, including
the full NTSB narrative of the accident.
David Thatcher, designer of the Thatcher CX4, pilots serial number one
over Lake Hancock, FL during Sun 'n Fun 2008 while EAA Chief
Photographer Jim Koepnick squeezes the shutter. Photo plane pilot:
Bruce Moore. Thanks go to the EAA for allowing us to use this photo.
Vampire Update.— A
brief update from the people at Sadler Aircraft. We’ll have more on
them after OSH– the promised Part Two.
Stinson’s Thatcher CX4.— Pat Panzera introduces the CX4 to CONTACT!
in this article which will certainly not be the last we hear from
and Torque.— Jack Kane offers a simple explanation that
horsepower and torque are not mutually exclusive. Far too many people
are under the wrong impression and we hope this fixes it.
Mean Effective Pressure (BMEP) — Jack Kane, who will become a regular
contributor, shows a simple way to help separate the wheat from the
chaff when it comes to engine manufactures’ claims regarding power.
of Attack.— A
how-to on building a simple device that can help reduce the risk of
Vibration Study of the Maxwell Propulsion MX1 Subaru Conversion
Package.— Gwen Maxwell chronicles the work MPS has done
to reduce the effects of torsional vibration using info found in issue
#90 of CONTACT!
First Alternative Engine Round-Up.— Gwen Maxwell reports on her experience
Drives checks in. — Phyllis Ridings brings us up to speed with the
latest developments with their Subaru PSRU and their RV-10 firewall
forward package based on the Chevy LS series of engines.
On the cover:
Glassair Glastar Sportsman powered with their EJ25 Subaru
conversion. Photo credit, Patrick Panzera. Photo plane, RV7 built and
piloted by Philip J Watson
Maxwell Propulsion Systems, Inc.—
Panzera visited the MPS facility in Arlington WA in August ‘08 and
writes of his impressions of the company as it arises from the ashes of
a "Front Cover"?— When converting a Corvair engine for
aviation, it’s necessary to convert the bellhousing to become what’s
commonly referred to as the front cover. Patrick Panzera gives a
step-by-step on how to go about creating the part.
Langford with William
Wynne’s Fifth Bearing.— Corvair aficionado Mark
Langford reports on his use of the prototype “fifth bearing” designed
and built by William Wynne as a solution to the crankshaft failure
Jones' Corvair Powered KR-2S and the fifth bearing he chose to go with.—
With more than one way to skin a cat, Mark Jones solves his crank
issues with a fifth bearing similar yet different than William Wynne’s,
created by Dan Weseman.
Weseman's Fifth Bearing.— Dan Weseman reports on his
development and the manufacturing of his cure for the Corvair crank
Szarafinski’s Evolution of a Corvair 5th Bearing.— Regular
contributor Anthony J. Liberatore visited Roy’s Garage and came back
with a wealth of knowledge concerning Roy’s answer to the Corvair crank
issue plus electronic fuel injection and electronic ignition.
Finley, N314JF, Low Approach E80 May 24, 2008
Finley's Subar-Sonic Q2.— Jon Finley has a passion
for engines and it shows with his direct drive Subaru EJ22 installation
in his Q2.
On the cover:
5151 Builder - Glen Holder, KW-909 Builder - Jim Young. Photo credit:
Titan All-Metal P-51 Replica Kit: How it’s Built and Ways To
Power It. Len Bechtold expounds the virtues of the Titan Aircraft’s
T-51, 3/4 scale Mustang replica. This is the second of two parts and it
touches on some of the details concerning construction and the engine
options including the two different “Mini Merlin” Suzuki V6.
Mustang: The P-51 for Walter Mitty. Mike and Sandy Loehle
report on their 3/4 scale wood and fabric replica kit, as well as their
other warbird offerings. Included in this article is information on
their high-gloss coatings.
Pilot in seven days: Our very own Nicholas Wood tells us of
his unofficial record-breaking accomplishment of receiving his Sport
Pilot certificate in seven days with 22 hours logged.
Sprigle’s Mite-T Mustang: How one builder set out to build a
P-51 replica on a budget, starting with a set of plans for a wood and
fabric Taylor Titch.
is a Taylor Titch: We describe a little about the history of
the Titch and the Monoplane designed by the late John Taylor, with
permission from his son, Terry Taylor.
Last of a Generation:John Miller, 102, Passes
away. We say so long to a great friend of aviation and a fixture at the
Replica Fighters Headquarters at AirVenture.
the cover: RotaMax two-rotor 1300 cc electronic
fuel injected engine. Photo is courtesy of RotaMax with the
artwork performed by Bruce Sturgill.
Panzera details virtually every aspect of this “new” rotary engine
being offered to the S-LSA and experimental, amateur-built markets.
Utilizing the Autoflight
geared PSRU, this engine has a power-to-weigh ratio that’s unrivaled
Titan All-Metal P-51 Replica Kit: It Ships Complete and It’s
Available – Really!!! Part 1. Len Bechtold expounds the virtues of the
Titan Aircraft’s T-51, 3/4 scale Mustang replica. This is the first of
two parts and it touches on some of the more basic details concerning
the design, construction and flight characteristics.
and Charlie Harber's
GLASAIR II TDS. Pat Panzera details the
adventures of father and son team Perry and Charlie Harber as they
build a Glasair I using first a 3.8L Ford/Blanton conversion and then a
small block Chevy with a Geschwender
geared PSRU and a Bendix, aviation-style mechanical fuel injection
Frames Go Digital. Freelance
writer David Hicks introduces Don VanRaay, the President of Cartesian Tube
Profiling and showcases his work with computerized
tube notching for the construction of tube frames of varying degrees of
difficulty, saving the average builder potentially hundreds of hours.
Plunkett's Subaru EJ25 powered
Glasair I. Andrew
does a marvelous job describing the adventure undertook when he decided
to use an automobile engine with a Marcotte Redrive in his plane.
More Cooling Capacity From Your Radiator. More tips and tricks of the
trade from Bud Warren of Geared
Drives, this time he details just how to go about “splitting”
a single-pass radiator and converting it to either a double or
Raceair Designs 'Lil Bitts Biplane. Award winning builder and
Fisher shows his one of his latest creations.
Andy Plunkett's first flight,
March 9, 2008
Harber's extraordinary Chevy powered Glasair II.
High speed pass, video was made with a still camera in video mode so
the sound is horrible. Turn DOWN your speakers.
Subaru Legacy with Redundant EFI. Ken Lehman does an outstanding
job describing the redundant nature of the electrical systems installed
in his EJ22 powered Murphy Rebel. See issue #41.
the Do-It-Yourself Builder.
A very brief side piece with contact information. Also see issue #51
Airworthiness Information Bulletin alerts the operators of
airplanes powered by Volkswagen air-cooled engines of an airworthiness
concern where the engine loses power due to the loss of cylinder head
One Believed That We Walked Away. Phyllis Ridings-Murawski of Geared
Drives, details the fiery loss of their Wheeler Auriga. Also
see issue #89
Icing-- One More Time. Another great discussion on
carb ice, this time by Harry Hill of the Winnipeg Area RAA
Lipps Checks In
and gives us some stats on the performance with a recently installed
Elippse prop on an RV-6. Also see issue #88.5
to the Rotax 912 & 914 Engines. Don Parham of RFI Power Systems
compares the Rotax series of 80-115 hp engines to automobile
conversions available from the US market.
Redrives Checks In.
By Jeron Smith. Raven Rotorcraft and Redrives’s latest offering, a
three-cylinder, 38-hp direct drive Geo/Suzuki engine.
COPPERSTATE to COPPERSTATE. Nicholas
Wood tells of his experiences during his first year working at CONTACT!
John Steere takes the Paul Lipps designed propeller balancer and adapts
it for wheel balancing. See issue #88.5
Bruce Sturgill provides us with a progress report on being a Personal
Cruiser beta builder. Also see issue #88
of an Era:
Exemption 7162 Expires. Owners of experimental aircraft could once be
compensated for renting their aircraft to others who sought
experimental aircraft-specific flight training can no longer be
Supplemental Type Certificate for Light Speed Engineering’s
PLASMA CDI on a Lycoming O-360
too big, not too small; it’s what a Fly-In was meant to be. A report on
the 2006 event and an invitation to 2007. COPPERSTATE 2007
Hebron’s EJ-22 Subaru Powered Volmer Amphibian. Anthony J. Liberatore does it
again by bringing us details of a very special amphibian.
The RFI Cog
Belt Reduction Drive for Subaru and Mazda Conversions. A report on the RFI PSRU by the
very prolific contributor Don Parham.
EFI Systems. Inspired
by recent reports of stock Subaru electronic systems going “LIMP HOME”
at the worst possible moment, Don Parham details exactly how the system
A new, 6.2L
LS3 small-block V-8. Chevy
does it again with its latest iteration of their infamous
A Long "Longster"
Be Built As A Legal Part 103 Ultralight? Oscar Zuniga
explores the possibility of building an old design with new materials,
including a 1/3 Corvair engine, and creating a modernized replica of a
Arguemeina demonstrates how bathroom scales can be used to determine
the horsepower of an engine that’s still bolted into an airframe.
Study of a Mazda 13B Installation in a Van’s RV6A. Steve Boese goes about studying
vibrations in a thorough manner.
Wheeler Express. Bud
Warren of Geared Drives introduces us to his geared redrive, as proven
with his beautifully crafted Wheeler Express. Former CONTACT! Magazine
editor and publisher Mick Myal found this story for us at SnF 2007 and
through a collaborative effort with Bud’s daughter Phyllis
Ridings-Murawski, they bring us this article.
Lancair ES. A
project report on a plane that’s about to take its first flight. We’ll
certainly be following up with this one. By Mark R. Steitle
by Pitch Control Systems, L.L.C. We couldn’t be more pleased to
announce the union between the fine people at Vari-Prop and Paul Lipps,
the creator of the Elippse Propeller. We now have a commercially
available version of the Elippse prop, and best of all, it’s
constant-speed. By John P. Moyle and Patrick Panzera
Detector Report. An
unsolicited report on a traffic avoidance device, the Traffic-Watch
ATD-300, installed after a close encounter with a Gulfstream pilot with
his head “up and locked”. by Steve Makish
people at Carter announce their 6-7 place turboprop, “Next Generation
Business Air Vehicle" (BAV) for true point-to-point travel.
How fast are
you really going? Revisited Part II, reprinted from issue #88.5. By
Updates My Plane Since Issue #77; Belleville Washers For Prop
Retention: Reno Successes: Vari-Prop, reprinted from issue #88.5. By
88.5 SPECIAL Paul Lipps issue. Published July 12, 2007. Now on
all the rules broken, this propeller looks and performs like none
other. By Paul Lipps Reprinted
from issue #77, Mar-Apr 2004
Lancair 235. Just
like the Elippse propeller, this plane is a little different. By Paul
from issue #77, Mar-Apr 2004
Propeller Test. Paul
Lipps answers the question, “Just how much difference can you
realistically expect from a spinner?” By Paul Lipps Reprinted
from issue #81, Jan 2006
How fast are
you really going? A
whimsical look at the effect of stagnation temperature rise as speed
increases and how that may be misleading you into believing that you
are going faster than you really are. By Paul Lipps Reprinted
from issue #80, Sep 2005
How fast are
you really going? Revisited. Part II, created for this issue. By Paul
Static Prop Balancer.
Another highly useful Paul Lipps article, detailing the construction
and use of a special fixture designed by Jeff Jeter. By Paul Lipps Reprinted
from issue #84, Jul 2006
Updates. My Plane Since Issue #77; Belleville Washers For Prop
Retention: Reno Successes: Vari-Prop. By Paul Lipps NEW!
success story of one team of Reno pylon racers. By John Moyle and
Patrick Panzera Reprinted
from issue #79, Feb 2005
should know your ECU; Three case studies. Larry David compiles three
stories concerning the trials and tribulations associated with using
the OE ECU from a 2.2L Subaru EJ22 powered KIS TR1. In
addition to Larry’s personal saga, George Moore and Graham Brighton
contribute to this case study.
Cruiser; Real aircraft performance at ultralight cost. Scott VanderVeen chronicles the
conception, design work and building process to bring this new aircraft
to market, designed by Steve Rahm and proves his FoldaPlane kit
Corvair Cruiser. Bruce
Sturgill, long-time friend of CONTACT! Magazine, is one of Scott
VanderVeen’s beta-builders who gives us a little insight into
what it takes to actually build a kit plane from the FoldaPlane process.
Testing the Personal Cruiser. Morgan Hunter describes his
experience with test flying and proving the Personal Cruiser.
EFI: A Second Look. Ross
Farnham of Simple Digital Systems brings us an update from his previous
digital EFI article and ties it in with the other EFI articles in this
A Tale of Two
Boese discovers issues with his EC2 electronic engine control
system related to operating from his high altitude airport.
Powered CH601XL-N1777W. Corvair guru William
Wynne gives an update with on his efforts with the Corvair
engine conversion, as it relates to his 601 and the Personal Cruiser.
Cylinders for Corvair and VW Engines. Pramod Kotwal of Nitron Inc.
announces his new product line.
Progress and Update. Ed
Anderson gives us an update on his 13B installation powering his RV-6A
that we reported on in earlier copies of CONTACT! Magazine, issues #49,
#50, #51, and #61.
offering from a new supplier, Propelled
Engineering. Art and Cheryl Reudko along
with Ted Alexander are embarking on a new endeavor of bringing the
convenience of a FWF package to the RV community first, and others as
demand dictates. By Earnest Kerr
X is for
Experimental; A Rotary Odyssey. A long anticipated article from
rotary engine guru Tracy
Crook that brings us up to date with his trials and
tribulations of taming his record-breaking RV-4.
single rotor conversion for an Avid. A work in progress is described,
detailing building a single rotor engine from a mix of available OEM
parts and a few custom parts, gets the weight down and power up while
hopefully not sacrificing reliability. By Richard Sohn
Linda Eslick’s rotary powered RV-6. With a $5,000 FWF investment,
Bill and Linda have done a remarkable job with their
creation. By Bill Eslick
Considering a rotary engine for your experimental aircraft? This
article does its best to bring you up to speed by detailing what has
worked and what may not work while the author describes his Cozy Mark
IV. By John Slade
is now ductless! Perry
Mick picks up where he left off in this follow-up article (in issue
#60) on his adventure into his ducted fan experiment, carried out with
the use of his sleek Long-EZ. By Perry Mick
EG33 Powered Comp
Myal spotted this beauty at AirVenture 2006 and reports on the
installation of this 4-place, all composite kitplane with a hefty
Annual Alternative Engine Round-Up. April 27-29, 2007 is the date,
Jean Nevada is the place. This is the only fly-in we know of that is
for experimenters, by experimenters, and it’s FREE!
Heavy Fuel, Part Deux. Anthony J. Liberatore brings
more information on the use of heavy fuel in aircraft piston engines.
See issuse #81 for part I.
World's First. Subaru has developed a “first” with their turbo diesel
engine based on their opposed four plat form and should be delivered in
vehicles in 2008.
Military Surplus Engine. Converting an APU surplus
engine for aviation, for a fraction of the price of its certified
counter part. By Dirk D. Kretschman
A letter from AOPA President Phil Boyer. Don’t despair is the topic of
this “call to arms” from the AOPA president. Phil is confident that we
as a group can fight and win the battle against “user fees”.
Maximizing Flight Efficiency by
Slowing the Rotor. The secret to the CarterCopter’s success and insight
to the unusual planform of the rotor. By Jay Carter
Performance, Hollow-blade Propellers. An in-depth look at the unique
propellers being developed by Carter, includ- ing construction
techniques, ground test and flight tests, as well as data spreadsheets.
By Jeff Lewis and Claudius Klimt
the CarterGyro Demonstrator/Trainer AKA CGD/T. Carter Aviation Technologies’
test pilot, George D. Mitchell gives us the rundown on
preflight and the operation of their new demonstrator.
FutureFlight-I, April 2-5, 2006. To showcase the
everyday utility of their newest VTOL technologies, Carter is
planning a demon- stration flight from Atlanta, GA to Sun 'n Fun, using
the CarterGyro to visit the same places along the way that we would
visit using an auto mobile on the same trip. By Anita C. Infante
Air Vehicle (PAV) Challenge -- Postponed or Canceled? Rod Anderson looks at the NASA
general aviation con test announced last summer and how it led to the
creation of Carter’s newest aircraft design.
Is the AeroTwin
Engine in the CarterGyro’s Future? A brief look at the new AeroTwin
engine and how it may end up powering the CarterGyro. By Greg Lynch
“CarterCopter” Announced. It hasn’t stopped with the
Carter Aviation Technologies has been working behind the
scenes and is ready to unveil their new focus; a CONTACT! Magazine
exclusive. By Jeff Lewis
Supercharged Thunderbird Powered BD-4. Past contributor John Steere
updates us with information on his BD-4 project we
previously covered in issue #66
By John Steere
Direct-Injection Turbocharged MAZDASPEED6 Engine. Mazda is offering 274
horsepower from a turbocharged, direct inject- ion, gasoline
engine. This all-aluminum, 4-cylinder engine seems
like a good candidate for conversion to aviation.
By Pat Panzera
Pants for the Masochistic Homebuilder. A step-by-step guide to plug and
mold making for the reproduction of fiberglass
parts, specifically wheel pants. By Chris Boultinghouse
Future of General Aviation Power. A frank discussion on the
direction general aviation is heading, including diesel, fuel cells,
hybrids and other alternative fuels. By Michael Friend.
”Mo” Bang for less Bucks. How one builder set out to find an
alternative to his certified O-320 installation in his RV-4, and found
his answer in an airboat shop. By Rob Ray
introductory forum on the Hexadyne P60, as presented by Cy Williams, at
the 2005 COPPERSTATE Fly-In. We transcribed the engine forum
at the recent COPPERSTATE Fly- In, and offer it as a precursor to the
following in-depth article. By Cy Williams
P60 Associate Editor John Moyle outdoes himself once again,
with a thorough look into the little, yet powerful
four-stroke engine, deter- mined to replace the two-strokes
in its class By John P. Moyle
Propeller Test. Paul Lipps answers the question, “Just how much
difference can you expect realistically expect from
a spinner?” By Paul Lipps
LS6 powered Republic Seabee. Two life-long friends work together to
build a show winning experimental Republic Seabee from scrap. Powered
by a 405 HP LS-6 Corvette engine conversion by Brian Robinson. By Pat
Planning Your Charitable Giving. Part II.
CONTACT! Magazine supporter Percy Lorie offers a little food for
thought, by way of the second in the series of informative
How fast are
you really going? A whimsical look at the effect of stagnation
temperature rise as speed increases and how that may be misleading you
into believing you are going faster than you really are. By Paul Lipps
Messinger describes and illustrates the differences between all Subaru
EA81 model engines, a must have article for any Subaru converter.
one-of-a-kind stealth like Facetmobile is profiled by designer Barnaby
70 Available in reprint only
liquid cooling solutions to your auto conversion homebuilt, as
researched by Prof. S.J. Miley at Texas A&M.
built 7/10 scale P-51 by Dan Hawken is powered by a Rover 3.9 engine
Spencer's Long EZ is powered by a Ford V/8 and goes 240mph.
A turbo Mazda
rotary in a Cozy is detailed by Greg Richter.
homebuilder, NASA's Mark Moore is behind the official movement to
develop affordable airplanes. A key element is the use of auto based
engines to reduce costs. Before and after cost numbers are
was fed up with costs of certified airplanes' repairs and elected to
power his RV-8 with a Corvette LT1 engine.
Villanueva is promoting the development of a radial cam engine, similar
in issue #68.
details his award winning engineering of a belt redrive Toyota turbo
MR2 conversion in a Cassutt racer.
Beierle of Earthstar
Aircraft is developing his "RAD-CAM",
an eight cylinder (two-stroke) high-performance (40hp) radial engine
for trikes, UL and sport class planes that uses a cam as opposed to a
reviews and debates problems of carburetion vs. fuel
has done considerable propeller design and modification. He explains
pitch factor effects.
Wynne has generated new interest in the 1960s era Corvair air-cooled
engine and discusses his conversion techniques.
engineer Lee Atwood explains the effectiveness of the P51 radiator, a
must reference for anyone adapting liquid cooled engines.
The 450 HP
Viper sports car engine is profiled by Chrysler chief engineer Charlie
Brown III. 1/5th views are published along with detailed technical
informs readers on Subaru engine systems and their
has flown his Blanton STOL powered by a baby GM 215 engine for 400
has developed some cooling benchmarks for the Geo 1.0 liter engine,
using his car as a test bed.
reports 295 hours on his Corvette powered Lancair ES. New IVO prop
considerably improves performance.
wraps up his work published in issue #43 on a Chevy 4.3 liter RV-6
describes his APEX turbine installation in a clipped wing
Luther builds planetary and cog belt redrives and prepares Subaru
conversions. His Subaru 2.7 RV-6A was featured in #36.
Ishikawa provides readers with hard-to-get official HP/torque curves
for the Suziki/Geo 1.0 and 1.3 liter engines.
engine conversion problems and solutions are solved by Torello
of his RV-6 electrical system and flight results wrap up Anderson's
successful Mazda installation.
Schweitzer reports on his new 4.2 liter Ford/RV-6 installation
Marcotte internal pinion redrive has many reduction ratios. A cross
section drawing is included by J-P Deschenes.
Part 2 of 3 articles describes his EFI and water and oil cooling
systems. Find a CAD drawing of his coolant header tank, photo views of
his radiator diffusers.
composite builder Gary Hunter describes the Pushy Galore F1 racer
COLOR centerfold by Jim Ewen shows all!
details his 13B installation in a RV-6A (part 1 of 3); CAD drawings are
reviews Subaru engine conversions, specific model differences are
design Rohr MR-2 airplane is documented by Vance Jaqua.
Graham's highly modified pusher design solves cooling
48 Available in reprint only
GM's new all
aluminum premium 215 HP V/6 engine is profiled by Powertrain Staff
Engineer Al Cline. In addition to an overview of engine testing
procedures, full technical specifications and engine weights a 1/5
scale engine drawing is included.
has had considerable success with his GM 4.3 liter powered Velocity.
His auto conversion approach is also applicable to tractor type designs
needing 200 HP.
47 Available in reprint only
Messinger summarizes his past articles with his design of a Subaru
EA-81 electrical system.
Airesman direct drives his Vari-Eze with a stock EJ-22 Legacy, cruises
at 200 MPH.
shares his work on the 16HP Briggs and Stratton engine in his
reports on Eggenfellner's Subaru conversions.
retrofits a LYC O-235 with GM's computerized electronic
Messinger addresses alternators, their regulation, design differences,
safety "crowbars", etc.
presents his approach to engine mount fabrication.
shares his low buck approach to flying...his simple redrive design is
defines turbo control types and selection.
Messinger discusses system voltage issues and component selection
offers hints on propeller selection, answers typical questions and
Rw-100 powers Ken Mintz's Vari-Eze. His simple coolant system diagram
analysis of WWII fighter liquid cooling problems and solutions can help
the homebuilder, this article by Hans Mayer originally appeared in the
Canadian Recreational Flyer.
44 Available in reprint only
Messinger proposes special electrical backup and safety systems for
auto engine conversions.
archives contain an unique auto powered flying wing built in the 1930s;
design features are analyzed (Tim O'Callaghan and Vance Jaqua,
engineer Chris Spock compares different power transmission systems
(belts, gears, chains); their relative durability is shown.
Flower describes his 3.8 Ford powered Seahawk amphibian.
43 Available in reprint only
custom builds a 4.3 Chevy engine for a RV-6A.
provides technical assistance in the installation of a NSI turbo Subaru
in a Kitfox V, cooling problem is solved.
Messinger documents his work on engine management systems, this the
first in his series of Contact! articles.
shows important differences in AJC core construction and effective
cooling duct design parameters.
Bernier has a 2.5 liter Mercury (Ford) aluminum engine going on a
WagAero 2+2 homebuilt.
42 Available in reprint only
Corporation's new all aluminum engines are detailed. Full engine
specifications, including weights and HP and torque curves are
published for the three displacements.
All 60 degree
V/6 designs, these produce 200-250 hp. V
describes his solution to the high cost of high performance aircraft,
the use of cheap high power cast iron engines and airframes from
existing kitplane parts bins.
41 Available in reprint only
article discloses design and development details of the 1997 GM
Corvette engine including 1/5 scale engine outlines.
Australian test-program is discussed by engineer Jim Contes.
designer Alan Lockheed explains the effects of rod length ratio on
has another approach to Subaru LEGACY engine cooling on his Murphy
40 Available in reprint only
has installed a Corvette LT1 engine in his 4-place Lancair
Wyatt has a comprehensive report on his engineering of cooling systems.
Various radiators are compared for efficiency.
39 Available in reprint only
The Vision is
an original scratch built design by Steve Rahm. it features full
sandwich construction, not seen in other scratch-built
Airesman's Honda powered Vari-Eze has a very efficient exhaust
augmented cooling system that works.
shares his experiences with auto engine dependability.
Don Parham is
writing a book on Subaru conversions. His first installment is included
in this issue.
failure and onset of engine failure is defined by Steve Parkman and
38 Available in reprint only
family of engines is documented by Don Parham, long time experimenter.
HP and torque curves are published.
article points out the hazards of buying salvage engines.
A GM article
describes the development of the harmonic balancer. Art Smart describes
his original design Phoenix airplane, powered by a Subaru
Available in reprint only
Sherwood is preparing a Subaru SVX conversion for his Glasair RG. He is
using a Ross redrive.
loves his SWAG fuel injected VW engine in his Preceptor PUP. His
installation has a unique crank trigger setup.
found he could save weight and cost by substituting composite
construction in lieu of steel tubing in his glass scale Jenny. He uses
a GEO Metro fuel injected engine.
36 Available in reprint only
reports on h s RV-6A powered with a Subaru 2.7 six cylinder engine. He
has come up with a slick planetary redrive of his own design.
Hereford's radial engine design produces 75 HP.
has some unique ducting features on his Legacy powered RV-3.
looks at auto engine conversion operation, comparing Lycoming
performance to reported numbers on Ford, Buick 215 and Mazda
35 Available in reprint only
introduces his new 4.3 Chevy conversion in a RV-6A.
VanderHart has shown his Buick 215 in a Stits Playmate at several
Oshkosh shows. He talks about his low-cost approach
shows how to make a composite intake manifold.
COPPERSTATE Auto Engine Round-up is reported.
34 Available in reprint only
A 2/3 scale
P-38 powered by two Buick 215 engines is a prototype design by Howard
explains prop efficiency-why fast planes can do well with small
Schweitzer details his Ford 3.8 conversion in his RV-6.
begins his Saturn 124 HP conversion in an Aeronca Champ test
32 Available in reprint only
pioneer and record holder Leeon Davis of Davis DA-2A V-tail design fame
has designed a new racer. Full details!
Don Parham, a
long time gyroplane enthusiast and publisher of Homebuilt Rotorcraft
magazine discusses his Subaru conversion developments over the
31 Available in reprint only
shares his development experiences with a turbo EA-81 on his Xpresso
reports on Ford 3.8 problems and solutions.
re-published article offers Chevy V/6 HP potential.
describes fuel injection developments and solutions.
30 Available in reprint only
builds his 200+ HP all aluminum 4.3 Chevy V/6; engine-dyno data is
offers proof why geared auto engines are better for take off and
reviews auto engine cooling and suggests ways experimenters can avoid
Available in reprint only
Vance Jaqua reveals KIS Cruiser prototyping details, along with design
data and construction methods.
tells why auto engines are superior in many respects.
reports on Copperstate's second annual Auto Engine Roundup!
achieves 1000 hr TBO with Mazda!
discloses development experiences with GEO (as Rotax
Kight describes his cold jet design.
28 Available in reprint only
develops a stand alone engine knock sensor. Complete DIY plans are
reports on his auto powered E-Racer. The LPE engine offers high power
at low overhaul costs.
27 Available in reprint only
shares his experiences in modifying and flying a Piper Rawnee with a
Chevrolet 350 HO engine.
Rand-Cam engine first shown at Oshkosh in 1994 has undergone its
initial test runs successfully and promises turbine like, smooth
performance in a light, compact package. This engine can now run
without seals reducing engine friction.
is a 2./3 scale jet fighter concept proposed by Embry-Riddle
University, using a Chevy engine driving a fan.
introduces his digital EFI system.
flight hours, Ray Ward reports on his Chevy powered Super BD-4 negative
experiences with custom engine builders.
Frangoudis presents an overview of cams and design factors.
25 Available in reprint only
Ron Gowan describes his Mazda rotary installation and
detail the necessary components, use of the Ross Aero oil tank and
mentions experiences of four other customers pleased with Mazda rotary
tells us what's going on in Detroit and the auto world with the
2-stroke engine and other engine developments. GM 215 engine
modifications are fully covered in an article originally published in
HOTROD, updates are added by experts.
designed a revised wing airfoil for Ken Rogers' PT-2 (issue 11 ) which
vastly improves its performance.
discusses thermostat and EFI problems. Composite curing is addressed by
24 Available in reprint only
concept which spawned the Wainfan "FACETMOBILE" is detailed by Bernard
reveals details of his AR-5 record setting airplane.
Copperstate 1994 auto engine "goings on" are reported.
23 Available in reprint only
installed a Mazda 13B in his gyroplane trainer. Well over 600 hours on
this installation in little over one year!
discusses lower winglet effects.
A GM paper is
the source on the development of modern engine bearings.
Vance Jaqua refutes inflated auto engine power claims using
22 Available in reprint only
Hoffmann covers his Cessna 150 Subaru EA-81 conversion.
trips from Seattle to Oshkosh and SNF proved his conversion
explains differences between center of pressure and pitching
engine report-who was there.
discusses piston rings, Russ Erb concludes his series on
An auto and
aircraft engine comparison chart is included.
Available in reprint only
builds a Murphy Renegade with a Subaru EA-81, detailing problems and
discusses volumetric efficiency and other engine factors.
newsletter excerpts cover Ford 3.8 engine problems and
provides a method for determining air loads on moveable
20 Available in reprint only
decided to replace his Cessna 172 O-300 with a Chevy 350. In the
process he has developed a roller chain redrive. His recertification
efforts are documented along with engine conversion details.
details his COZY aft CG test program.
discusses engine design and performance factors-list of 4
fiber intake manifold is developed.
19 Available in reprint only
Meyers has over 500 hours flying his Buick 215 powered Swift. Included
are engine building pointers.
quick method of building composite fuselages is introduced by Jan
Updike using Aero-Core material.
Waldmiller tells about his flight test experiences, offers excellent
methods for comparing results of changes (props, pants, wing tips,
alerts experimenters to sources of ignition coil failures and tells
about the build of a GEO Metro conversion.
18 Available in reprint only
tells all about his KIS 2-seater. illustrations define unique
construction features which make this the one a quick build.
follows with his glowing report on his KIS/Subaru Legacy
17 Available in reprint only
Schweitzer has over 300 hours on his Blanton/Ford STOL His detailed
report contains information on building a successful
comprehensive AIAA report on liquid cooling includes formulas and
review of WWII aircraft cooling configurations.
16 Available in reprint only
Devoted to a
single project, Terry O'Neill describes his development of the Ford 351
Windsor engine for his Magnum bushplane. The article includes specific
information on choosing salvage engines, cylinder head selection,
problem areas generated by 'experts', fueling, redrive temperatures,
and other topics pertinent to engine conversions. He details the
adaptation of a McCullough (Paxton) supercharger to his installation
and HP increases.
15 Available in reprint only
by Larry Lam has unique up-only aileron controls and full span flaps.
Many other design features are discussed in his article.
development of the world class 295 HP, 402.6 pound Northstar engine is
described by Cadillac's Max Freeman.
14 Available in reprint only
reveals details of his record setting AJ-2 racer, including unique
describes changes to the Safe-T-Poxy formulation as a result of adverse
provides an update on his 160 hour Subaru Legacy Dragonfly.
talks about the basics of EFI systems.
article details engine coolants.
12 Available in reprint only
and Taylor reveal the details of their Honda Goldwing motorbike engine
Hoffmann of Seattle reported on his development of the Subaru Turbo
EA81 using a belt redrive.
tells of his low cost replacement for tired mags using HEI
developing engines for the 350-600 HP class of custom airplanes. Their
report establishes parameters for these advanced engine
11 Available in reprint only
The GM 215
aluminum engine underwent 19 detailed breathing modifications by
Edelbrock and reported by Hot Rod magazine in 1961.
Riblett's article defines the new Kitfox airfoil and its
Ken Rogers of
Moxee WA reports on his Subaru Legacy installation in his Pro Tech
airplane, including a complete weight breakdown.
Ron Gowan's 4
place twin Mazda powered "Starship" design is shown.
10 Available in reprint only
describes his development of the COZY IV 4 place canard airplane. The
only canard design licensed by Rutan this airplane carries some 25
years of continuing improvements in design, structure, cooling, and
offers general auto conversion information.
describes an alternative method for composite laminar wing
takes readers through the steps to get the straight story from a FAA
computer bulletin board.
and Bob Catrambone discuss their experiences with the HAPI engine to
alert others to potential problems.
8 Available in reprint only
reports on his approach to a budget (< $7000) airplane. His
rebuild of the Subaru EA81 engine is covered. The Tri-Q construction
steps and the function of a simple fuel injection system of his design
reviews the advantages and drawbacks of various composite construction
joints. A new speed record design by Lars Giertz is revealed.
7 Available in reprint only
article reports on the design and construction methods of the tandem
survey of builders and pilots replying to a detailed questionnaire on
support and performance is included.
lightweight main gear retraction mechanism design by Bob Meador is
automobile engine development is reported by Robert Brooks.
Published in January of 1992 Available in reprint only
construction, and testing of Saffire by Berry Halsled. it has the
hallmark of a factory engineered job. The article includes the wing
bending and shear load calculations and a running weight and balance of
all major components, useful for comparison.
details his Legacy engine Dragonfly installation. A scale drawing and
photos define the cooling system.
shares his knowledge of octane requirements with respect to the 180 HP
4 Available in reprint only
engines are being developed in Detroit by GM and Orbital Engine. New
engine concepts are described.
lock and other auto fuel considerations are addressed by Bob
between auto and aircraft engines are reviewed by Rick Stahl.
reports are published on a Dragonfly powered by a Subaru Legacy and a
Tri-Q powered by a pushrod Subaru ($475 cost to the builder, including
overhaul and balancing).
3 Available in reprint only
Pereira designer of the GP-4, reviews its design, cockpit
accommodations, the plans, work space requirements, materials,
adhesives, fuselage construction, canopy, tail surfaces. fiberglass
components, control surface flutter, additional design features, wing
design, gear retraction, wing/ fuselage assembly/powerplant,
report by Jake Jackson and Ralph Hallenborg comments on the plans, time
to build, and flying characteristics.
2 Available in reprint only
The Pulsar by
Mark Brown. The design, structure, construction, landing gear, wing,
tail surfaces, economics, cockpit, the engine, finishing. flying
qualities and services are described.
independent Contact! survey of over one hundred builder/customers is
Power for Experimental Aircraft" by Chris Ross discusses reduction gear
advantages:-technical support-auto power expertise-used engine
experience-engine installation and dress- fuels-typical
programs-examples--why gear reduction-engine torsional
vibration--rotary reliability. etc.
view of the Ross redrive unit, calculation of the Mazda 13B weight
/moment installation and its 1/5 scale drawing is included.
Kruiswyk's article describes his 13B conversion in a Lancair.
All descriptions and images of
"future" issues are subject to change without notice
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