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Electric
Flight
Here's what some readers have said
By
Patrick Panzera, EAA 555743
ppanzera@eaa.org
Last
month I wrote my editorial moments before
leaving for the 2010
CAFE Electric Aircraft Symposium. I left
with a "skull full of mush" hoping to
come home with enough education to begin seeking
out, editing, filtering (the wheat from the
chaff), and potentially writing electric flight
articles in an intelligent manner. Although I
wish that each presenter at the symposium could
have talked several times longer than they did,
I believe my educational goal was met. As such,
I would like to sincerely thank all the CAFE
volunteers that worked hard to bring us the
symposium, and I would like to offer my
gratitude to each of the presenters who were
willing to freely share their research and
developments. I won't be going into any details
in this issue however the editorial I wrote last
month caused an avalanche of letters to the
editor like never before. You can take a look at
just a few of them by clicking: Read
more
In
every issue of Experimenter, a link to a
survey is provided. The responses you make are
anonymous, unless you elect to leave your
contact info. I read each and every response and
take your comments seriously while doing my best
to fulfill requests and to apply criticism
appropriately. I urge you to participate in this
process, especially if you have never done so
before. The entire Experimenter staff wants to
hear from you so that we can continue to provide
the content we know you want. The link can
normally be found in the right-hand column, but
you can also take the survey by clicking
here.
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Paul's
Pick
Paul
wrote in Sport Aviation in December, 1972
that the FAA was committed to safety and the
freedom to build and fly. He also felt that the
EAA community had to be prepared with an organized
answer when tragedy skewed the public's perception
of recreational flying.
"I
am convinced that FAA desires to insure the future
of the amateur-built movement and the privileges
we enjoy in building and flying-in such a way that
they are not lost because of spectacular mishaps,
pressures from citizens groups, or Congress. On
the other hand, what do we have to offer in the
way of standards in the event we are called upon
to answer for our actions?" Read
Paul's column
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Tales
From the DAR Side
Attack
of the Placards
Last month, I discussed the
"EXPERIMENTAL" marking and passenger
warning placard. Beyond those items there's a
general requirement for placards and markings
called out in 14 CFR 91.9. While there's no
specific guidance for these markings, the idea
is to make it obvious what each switch, control,
fuse, or circuit breaker does. Plus, a follow-up
to some of your questions about N numbers. Read
more
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Jake
Jaks' Pober Junior Ace
15 years of work
It's
always an honor to complete an experimental
aircraft and have the designer look it over and
give it the thumbs-up. Such was the case with
Jacob Jaks and his Pober Junior Ace when he had
the opportunity to show it to EAA Founder Paul
Poberezny at the 2009 Sun 'n Fun Fly-In at
Lakeland, Florida. That meeting is only a small
part of this story of building the plane from
scratch, deviating from the plans just enough to
successfully install a Corvair engine. Read
more
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Fournier
RF4D, Part 2
Flight Evaluation
In the April
issue of Experimenter we reintroduced
the Fournier RF4D self-launch sailplane, a very
capable cross-country machine certified in
France, many of which being lovingly restored
and maintained in the United States under the
experimental-exhibition rules. Its wood and
fabric construction makes it an easy restoration
for anyone with the confidence to take on such a
project that once finished, can be flown by
pilots who hold a glider category rating and a
self-launch endorsement. Since no medical
certificate or drivers license is required for
glider operations, there is no restriction on
pilots whose most recent FAA medical certificate
was denied, suspended, revoked or withdrawn by
the FAA.
This
month we follow up with an article on the
piloting aspect of owning and operating a
Fournier RF4D. Read
more
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Electric
Aircraft Advances Showcased at CAFE Symposium
In last month’s
editorial, Experimenter
editor Patrick Panzera made reference to his
(then) upcoming attendance at the 2010 CAFE
Foundation Electric Aircraft Symposium in order
to get an overall grasp on the advances of
electric flight and its immediate viability. EAA
reporter Peter S. Lert also attended the
symposium and gives his opinion on the overall
event. Read
more
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The
Electric-Powered Aircraft
Technical challenges
The
thought of buzzing around the sky, quietly, with
no carbon emissions is an enchanting one - and
the promise of electrically powered airplanes.
Just plug it in for a couple of hours and go
flying. No carb ice, no oil stains, no $5 per
gallon avgas. But how close is this to becoming
a reality? How developed are the technologies
that are needed to make an electrically powered
aircraft? David Ullman takes a look at the
different types of components, their
state-of-the-art technology, and what
developments you can expect. Read
more
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What
Our Members Are Building
The Decision to
Build the Thatcher
In
Pat's editorial
last month, he briefly spoke of (first-time
aircraft builder) Ashlynd Leighton's budding
experience with the Thatcher
CX4. Consider this the first of many
installations as we track her progress along the
way of becoming a homebuilder. In this month's
article, Ashlynd is just getting started... Read
more
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Veterans
May Salute the Flag in a Very Fitting Manner
EAA
AirVenture Oshkosh 2010 Salute to Veterans
is a celebration with special activities planned
for the entire week! With that, here's a little
something that many veterans may not know
concerning the proper protocol for saluting the
flag of the United States of America. Read
more
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Don't
Miss Canadian Pilot License Deadline
Time
is running out for Canadian pilots to apply for
a new license from Transport Canada. The new
style of license incorporates several
requirements mandated by the International Civil
Aviation Organization regarding security and
fraud. Pilots who submit their application
before the June 30 deadline will be issued a
temporary certificate while their application is
being processed. Currently there is a backlog
and those who wait until after the deadline to
apply miss out on the temporary certificate
option and their license will be invalid until
their new one arrives. An
application can be found here.
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Webinar
Helps You Take Next Step Toward Flight
Homebuilding Community Manager Joe Norris and
writer of The DARside in Experimenter has
given over 100 homebuilt final inspections. Joe
is anxious to help you prepare your homebuilt
its special day.
Zenith STOL
Aircraft-CH 701, 750 & 801
Since 1992 Zenith has been producing a line
of all-metal, STOL (short take-off and landing)
kit aircraft designed by Chris Heintz.
More Webinars
are added frequently. To view a complete and
up-to-date list of all EAA Webinars, visit webinars
page.
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From
the EAA Homebuilding Community
The
Homebuilders Corner message forum at Oshkosh365
is as active as ever. Have a look at the list
below and follow the links to read the actual
questions and discussion topics.
Can
You Help?
Interesting
Discussions
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Carburetor
Adjustment
Dick Koehler reviews the process of
adjusting a Marvel Schebler carburetor typically
found on Lycoming O-360 engines. Watch
the video
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Sport
Aviation, May 1982
Rag Rose
In
this month's issue, we present the story of Jake
Jaks' Pober Junior Ace, which he built from
plans. In November 1979, Sharron and Ted Travis
began building "Rag Rose," a Corben
Junior Ace they finished and debuted at EAA
Oshkosh 1980. Unfortunately they had to ditch it
in the woods on the way home to Michigan due to
a carburetor problem. The Travises preferred to
build from scratch or not at all, so rebuilding
the aircraft in less than a year was quite a
feat. It wowed the judges when it returned to
Oshkosh in 1981. Read
the article
You
can also 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
considering the purchase of a homebuilt aircraft
in another state. What things should I be
looking at and thinking about in making this
purchase?
A. Purchasing
a homebuilt isn't a lot different from
purchasing any other aircraft, but there are a
few key things you need to check for. Read
more
Read more Q&As | |
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Poll
Q.
Project Build Time - Compared
to your initial expectations at the start of your
project, or what you told your spouse, how long
did it take you to complete your project?
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Aviation
Glossary
Confused
by a strange aeronautical term? EAA's online
Aviation Glossary can help.
INDUCTANCE
- (1) The property of an electric circuit by which
a varying current in it produces a varying
magnetic field that induces voltages in the same
circuit or in a nearby circuit. It is measured in
henrys. Inductance symbol: L. (2) The capacity of
an electric circuit for producing a counter
electromotive force when the current changes.
NITRIDING
- Gas nitriding is a case-hardening process
whereby nitrogen is introduced into the surface of
a solid ferrous alloy by holding the metal at a
suitable temperature and in contact with a
nitrogenous gas, usually ammonia. Nitrogen
released by the decomposition of ammonia reacts
with the metal to make iron nitride, a hardening
substance. Process methods for nitriding include:
gas (box furnace or fluidized bed), liquid (salt
bath), and plasma (ion) nitriding.
More
glossary terms
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Forum
Review
The Eyes of an Engineer: Burt Rutan on Climate
Change at AirVenture 2009
It's hard to mention electric flight or even
electric automobiles without relating this
technology to a reduced negative impact to the
environment compared to its gasoline-powered
counterpart. There's no doubt that reducing
combustion emissions is good for everyone. At EAA
AirVenture Oshkosh 2009, Burt Rutan looked at the
climate change issues from an impartial engineer's
perspective in an informative presentation. No
matter where you might stand on the issues, this
presentation will be eye opening and worth
hearing. Listen
to the forum.
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Around
the Web
UV-resistant
packing tape for wing covering?
If
you're building an RV or not, "Construction
Materials, Processes and Useful Information"
by Van's Aircraft is a treasure trove of
information for anyone building a metal plane.
David
Algie of Algie Composite Aircraft is the
innovator behind this
unique aircraft project you may have seen at
the Sun 'n Fun Fly-In at Lakeland, Florida, last
month. All composite and designed around the use
of a small block Chevrolet engine, the LP1
promises to be quite the performer.
Rod
Herzig likes to fly and film with his Cozy
III. Using a GroPro Motorsports Hero camera he
filmed over a two week period earlier this year
while flying around western Massachusetts and
Southern New Hampshire. It comes with many
different attachments and a 170 degree lens which
allowed him to get some incredible
shots.
For
more links to interesting aircraft design and
building topics to read about and explore on the
Internet, visit our Around
The Web page.
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