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WELCOME!
The
homebuilt community has a couple of
hidden gems. They really shouldn't be
hidden, but it seems that they are.
These gems are the EAA Technical
Counselor and Flight Advisor programs.
These 100 percent volunteer programs
have helped thousands of amateur
builders do a better and, more
importantly, safer job of building,
testing, and flying their homebuilts.
The Federal Aviation Administration
recognizes these programs as
enhancements to homebuilt safety and
mentions the programs in its advisory
circulars and other guidance materials
related to amateur-built aircraft.
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Paul's Pick
Learning From History
History
can tell one a lot…about successes and
failures. Looking back through my
editorials of the past, the
"Homebuilder's Corner" that appeared in
March 1963 issue of Sport Aviation
relative to the EAA Airplane Design
Contest brought great interest in our
desire to promote free thinking and
innovation that could improve light
plane development.
The all-wood
Pete Bowers Fly Baby took first
place; many were built, and some are
still flying, and the process of freedom
of thought, with hands and mind, has
continued our progress. One only has to
look at the variety of creations that
mark the grounds at your EAA Oshkosh
convention each year.
But more is needed in the development of
powerplants for these machines of
flight. Can EAA of today lead the
effort? When I view the NASCAR races,
these earthbound vehicles roaring around
the tracks at speeds of 180 to 200 mph
for hours with few powerplant failures,
I not only admire the drivers, but most
importantly the craftsmen who with their
skills and knowledge build and craft
these powerplants. Their talent would be
very valuable to our movement. There is
a need for reasonable, reliable
powerplants that could enhance aviation
and, in particular, our movement. Are
EAAers up to the task?
- Paul Poberezny |
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Converting a Subaru EJ-22
Jon
Finley's Q2 is powered by a converted
EJ-22 engine from a wrecked 1990 Subaru
Legacy, acquired "for a song" from a
friend in the auto towing business.
After performing the entire conversion
himself, Jon wound up with a 250-pound,
direct-drive engine that produces enough
power at high-density altitudes to be
safe and to satisfying - for less than
$3,000 (including the ECU).
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How To . . .
Creating Custom Wheelpant Molds
Chris
Boultinghouse, self-confessed "airplane
nut" since the age of two, provides
step-by-step instructions on building
composite wheelpants molds. In this
article, which first appeared in
CONTACT! Magazine, Chris learned
composites from building and marketing
RC airplanes in high school.
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Concept: Can A Long "Longster" Be Built
As A Legal Part 103 Ultralight?
The
same factors that drove experimenters in
the 1920s are also driving today's
experimenters, who are unwilling or
unable to build or buy large or
expensive airplanes or kits. In that
context, Oscar Zuniga, of San Antonio,
Texas, explores one of aviation's
earliest designs - The Longster - and
whether one can be built that would
qualify as a Part 103 ultralight. Click
to continue |
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What Our Members are Building
Wayne Sprigle's Mite-T-Mustang
Wayne
Sprigle of Springfield, Ohio, is
recently retired from the 178th Fighter
Wing of the Ohio Air National Guard. He
reached the rank of Senior Master
Sergeant and has always expressed a love
affair with the North American P-51
Mustang. In the late 1970s he joined EAA
and started looking for a Mustang
project he could build from plans, and
he found one-almost.
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Meet EAA Staffer Randy Hansen
Government Relations Director
My
love for aviation started when my
parents started taking the family to the
Fullerton Municipal Airport (FUL) to
simply watching airplanes land and take
off. Many years later one of my teachers
at Fullerton Junior College took me to
El Mirage Dry Lake in the Mojave Desert
for a flight in his Bensen Gyrocopter.
While that hooked me on flying, I wasn't
able to do anything about it until
graduation from college when I took the
leap and joined the Army in 1972
specifically to fly helicopters.
Click to continue |
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From the Editor
Patrick Panzera, EAA 555743
ppanzera@eaa.org
Along
with the rest of the team that puts this
e-newsletter together, I’m really proud
of the amount of positive comments we’re
receiving. This tells us we are heading
in the right direction. The amount and
the quality of article suggestions we’re
receiving are staggering as well, but it
will be a tough bill to fill without
some serious help from our readers. I’m
finding a trend among the Internet
savvy; those who in the past would have
submitted an article to their favorite
aviation publication or type club
newsletter are forgoing that step in
favor of publishing a web page or
posting to their favorite e-mail group.
In either event, print publications and
e-newsletters such as Experimenter
suffer the consequences by having to
search out or otherwise create articles
of interest to publish rather than
receiving those gems some of you are
keeping to yourselves. This lack of
submissions may be one reasons for less
homebuilding content appearing in these
publications.
With that, I ask that you not consider
EAA headquarters and/or its publications
as the end-all-be-all source of
experimental aviation information, but
rather a repository for sharing your
ideas and submissions. In other words,
don’t just sit back and wait for us to
find and create what it is you want to
read, but rather please let us know what
you are doing. By sharing your stories,
we will all get to read what our fellow
members are doing. That’s where
experimental aviation really happens—in
our garages, our hangars,
our basements—not at the editor’s
desk.
So next time you feel the need to update
your website or send that killer
progress report to your favorite e-mail
group (be it positive or negative),
please consider sending it to me, too,
for inclusion in Experimenter. |
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Motor Mount Fabrication
The complex geometry of a
motor mount makes scratch building one a challenging
task. In this segment, Earl Luce shows how to make
a simple jig that will greatly simplify the task.
Earl is an EAA SportAir Workshop instructor and a
volunteer EAA Technical Counselor. He also offers
plans sets for the Wittman Buttercup.
Watch the video |
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Sport Aviation, Feb-Apr 1958
The Pietenpol "Sky Scout",
by George Hardie, Jr.
Read the article or
search the archives by subject for a multitude
of technical and how-to articles. |
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Q&A
Got a
question? Send it to us at
Experimenter@eaa.org.
Whether you're building, restoring, or just an
enthusiast. we want to know what has you stumped.
Q: I’m working with flared tubing and AN
fittings. How do I properly tighten the AN-818
coupling when connecting a flare connection? I
figure I’m currently halfway between finger-tight
and stripping the threads (based on thread-stripping
experience). Is there any official guidance on this
subject?
A: Guidance for this and other related
questions can be found in FAA Advisory Circular (AC)
43.13, Acceptable Methods, Techniques, and Practices
- Aircraft Inspection and Repair. The current
version is AC 43.13-1B. The info on tightening
AN-818 fittings can be found in Table 9-2, on page
9-19 of the AC.
If you don’t have a copy of AC 43.13-1B, I strongly
suggest you get one. This is truly the bible of
aircraft maintenance and repair, and it includes
guidance on all manner of aircraft construction and
maintenance. Your FAA inspector would be pleased to
see that you have a copy on hand when the time
comes. It is the best $25 you can spend on your
project. You can get your own copy by calling EAA
membership services at 800-843-3612. Ask for catalog
number F00191.
You can also find the AC online at
www.FAA.gov. It’s a very large document
presented in
14 separate PDF files. I find it easier to have
the printed version right on my bench in the shop.
Read more |
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View some historical photos of Les Long's Longster
along with some construction drawings from a 1931
Flying and Glider Manual article that Long wrote
about building the Longster.
View the photo gallery. |
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Poll
Which emerging light-aircraft engine technology
holds the most promise for the homebuilt community?
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Aviation
Glossary
Confused by a strange aeronautical term? EAA's
online Aviation Glossary can help.
ECU (engine control unit) is an electronic
unit that controls various aspects of an internal
combustion engine's operation.
The simplest ECUs control only the quantity of fuel
injected into each cylinder each engine cycle. More
advanced ECUs found on most modern cars also control
the ignition timing, variable valve timing (VVT),
the level of boost maintained by the turbocharger
(in turbocharged cars), and other peripherals.
More glossary terms |
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