EAA Experimenter - EAA's Homebuilders e-Newsletter
   
 
February 2009
  EAA Experimenter - EAA's Homebuilders e-Newsletter
Inside this Issue
Forum Review
The ELIPPSE Propeller
Cutting Tubing with Your Table Saw
Accurate Wood Cutting
Hints for Homebuilders
: Paul's Pick
 
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WELCOME!

Joe Norris22,000 and counting! That's how many people have subscribed to Experimenter. I want to thank every one of you who have  subscribed, and I encourage you to share this e-newsletter with your friends and fellow EAA members. Spread the word!

Thanks also to everyone who took time to participate in last month’s poll. The results indicate that at least half of you will not be curtailing your building or flying in light of the current economy. Here’s hoping everyone is able to find a way to participate in the homebuilt community at some level, whether it be building, flying, or just helping another EAA member on their project! And don’t forget to answer this month’s poll.

I also want to thank those of you who completed the survey for the first issue. We've received hundreds of comments, which Pat reviews in his From the Editor column. I always enjoy hearing from my fellow EAA members, so send your thoughts, ideas and comments to Experimenter@eaa.org. Your input will help guide us to improve future issues of the newsletter.

Enjoy this month's issue!
- Joe Norris, EAA's Homebuilders Community Manager

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Paul's Pick
Each month we will feature a historical article chosen by EAA Founder Paul Poberezny. This month he's chosen his HOMEBUILDERS CORNER column from 
SPORT AVIATION, January 1965.

Homebuilder's CornerAs I introduce this column that I wrote so many years ago - well over half a century - I am sitting here at my kitchen table seemingly like it's January 1965 again. I was a bit younger then, with a lot of enthusiasm for all of aviation - in particular, designing, building, and restoring airplanes. Many of those EAA members are not with us now; some are. I thought I would share my views from then, which I still hold now. I owe a lot to so many people who gave me so much support through very trying times as well as the good times, particularly those in government (back then known as the Department of Commerce, then CAA and now FAA) who gave such wonderful support and guidance to me, which still exists today. I'll come up with more history and comments next month.
  - Paul Poberezny

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The ELIPPSE Propeller
ElippsePaul Lipps read Modern Propeller and Duct Design where he learned about Peter Talbot's "Prop Performance" computer program…all of which led to his designing an elliptically shaped propeller. Learn the how's and why's of the enhanced performance he's getting with just such a propeller on his Lancair 235 … as well as some propeller myths Paul seeks to put to rest.  Read more
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How To . . .
WoodcuttingAccurate Wood Cutting for Aircraft Construction
One thing you quickly find when building a wooden airplane is that there are very few square corners. And, while "close enough" may be okay for building a doghouse, you want something better than that in your airplane. Here are a few tips to get accurate joints the first time and (almost) every time. Read more of Steve Sadler's tips.  Read more
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John Thompson’s Kitfox IV-1200
KitfoxAfter retiring from a life-long aviation career, John Thompson pursued his dream of building and flying his own airplane. He chanced upon a Kitfox IV-1200 project for sale and embarked upon finishing it, installing a Subaru EA-81 engine with components from a number of aviation suppliers. All was well until an overzealous tow-truck driver destroyed the aircraft after an unscheduled off-field landing.  Read more
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Subenews
BD-4Peter Krok's "Subenews" (Subaru Eggenfellner News) is an independent newsletter and website that serves as a clearinghouse of information for owners of Eggenfellner Subaru firewall forward engine packages. Owners/builders share information, conversion tips and more.  Read more
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What Our Members are Building
What Our Members are BuildingBen Schneider highlights the installation of an RX-8 engine in his Van's RV-7, including details of the cooling, exhaust, and fuel systems he designed and built. He's looking forward to the first engine start soon!   Read more
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Meet EAA Staffer Ron Wagner
EAA’s Manager of Field Relations

Ron WagnerI grew up in Western Pennsylvania right under the final approach to Conway Airport, where Taylorcraft was located at the time. My first airplane ride was when I was about 3 years old with my uncle, Ken Hendrickson, a demo pilot for T-Craft and co-owner of one. I was hooked from that time forward.  Read more
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Forum Review
Listen to Jon Goldenbaum of Poly Fiber Aircraft Coatings explain the intricacies of fabric covering in this forum recorded during EAA AirVenture Oshkosh 2008.
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From the Editor
Pat PanzeraThe first issue of Experimenter was met with overwhelming positivity. More than 90 percent of the comments left by readers were incredibly encouraging. But there’s no backslapping going on here; we have more work to do. Although we certainly seem to have hit a home run, we still want to make it better, mostly because you deserve it, but also because we can. But we need your help. We need your contributions; we want to read about your homebuilt aircraft or project and include it in future issues of this electronic newsletter.  Read more
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Hints for Homebuilders
Cutting Tubing with Your Table Saw
Earl Luce demonstrates the correct and safe way to cut steel tubing with a table saw.
Watch the video
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From the Archives
Sport Aviation, May 1970
Aircraft Electrical Installation Tips,
by Bill Blake
Read the article or search the archives by subject for a multitude of technical and how-to articles.
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Questions and AnswersQ&A
Got a question? Send them to us at Experimenter@eaa.org.
Whether your building, restoring, or just an enthusiast. we want to know what has you stumped.

Q: I've just finished building my Pietenpol, which is an experimental amateur-built aircraft that meets the LSA definition. I'm ready to begin the phase-one flight testing. I'm a student pilot working toward my sport pilot certificate and I don't hold a current medical. Is it legal for me to do the flight testing as a student pilot? Can a student pilot fly an experimental aircraft at all?

A: Let's take the second part of your question first. There is no regulatory prohibition on a student pilot (sport pilot or otherwise) flying an experimental aircraft. Pilot requirements, privileges, and limitations are found in 14 CFR Part 61, and student pilot privileges and limitations are specifically found in subpart C. There is no specific limitation in that section prohibiting a student pilot from flying an aircraft with an experimental airworthiness certificate.  Read more

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Homebuilder Gallery of the Month
This month’s photo gallery highlights some of the individual steps shown in this month’s video, Cutting Tubing with Your Table Saw.  View the photo gallery.
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Poll Poll
100LL aviation fuel may not be around forever. How would its disappearance affect you?

Poll - Vote Now!

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Aviation Glossary
Confused by a strange aeronautical term? EAA's online Aviation Glossary can help.

REYNOLDS NUMBER - In fluid mechanics, a number that indicates whether the flow of a fluid (liquid or gas) is absolutely steady (in streamlined, or laminar flow) or on the average steady with small, unsteady changes (in turbulent flow; see turbulence). The Reynolds number, abbreviated NRe or Re, has no dimensions (see dimensional analysis) and is defined as the size of the flow — as, for example, the diameter of a tube (D) times the average speed of flow (v) times the mass density of the fluid (r) — divided by its absolute viscosity (m). Osborne Reynolds demonstrated in 1883 that the change from laminar to turbulent flow in a pipe occurs when the value of the Reynolds number exceeds 2,100.

More glossary terms

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Around the Web
Check out these interesting and informative videos and websites. Have a favorite technical site? Share it with us at Experimenter@eaa.org.
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Survey
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