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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. Read
more
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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). Read more
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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. Read more |
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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. Read
more |
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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.
Read more
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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. Read more |
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Forum
Review
Listen
to Greg Richter (a 46 MB mp3 download), of
Blue Mountain Avionics, in a forum presented at
EAA AirVenture Oshkosh 2008 and follow along by
reading Aircraft
Wiring For Smart People (a 1.6 MB PDF
download), Greg's a step-by-step guide to wiring
your airplane simply, effectively, and
inexpensively. Read
more |
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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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