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EAA Experimenter - EAA's Homebuilders e-Newsletter
   
 
April 2010
 EAA Experimenter - EAA's Homebuilders e-Newsletter
Inside this Issue
The Fournier RF4D Motorglider
New Limits vs. Service Limits
Flying Dave Thatcher's CX4
Titan All-Metal P-51 Replica Kit
Come to Virginia in May!
 
 
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Electric Flight
Is it the future of sport aviation or just another pipe dream?
By Patrick Panzera, EAA 555743
ppanzera@eaa.org

Pat PanzeraOpen any vintage Popular Mechanics or Popular Science magazine, or watch any 30- to 40-year-old sci-fi movie, and you'll see that we haven't even come close to achieving the level of technology that was predicted to be ever present in the years beyond 2000. Where's my flying car? Why does my automobile still have a piston (or rotary) engine, and why won't it hover? And where's my robotic housekeeper?

Are we being spoon-fed another load of hope and anticipation with the electric airplane? I hope not, and I hope to get to the bottom of it soon. Read more

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Paul's Pick
Paul PobereznySometimes the FAA makes us angry, but in many cases we must be careful not to shoot the messenger. In the August 1971 issue of Sport Aviation, Paul wrote about the federal use tax and how EAA members shouldn't send angry messages to the Internal Revenue Service with their payment, because it was Congress that enacted the legislation. Paul used a similar approach regarding FAA policy, advising us all to direct our displeasure toward FAA officials who make the policy and to express that displeasure in appropriate ways.  Read Paul's column
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Tales From the DAR Side
Joe NorrisYou've placed your identification plate in a position accepted by both you and the designated airworthiness representative . Your "N number" (or registration number) is in the proper location, size, and font. Now, where to put that required "EXPERIMENTAL" sticker? The location required by the regulations gives the builder more wiggle room than most people would think. Read more
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David Roe's Highly Modified Hummel Bird
Hummel BirdIn the February issues of Experimenter, we featured David Roe's highly modified Hummel Bird, affectionately known as "Diva." With its highly modified four-cylinder VW engine, (the Hummel Bird was designed to use a half vee-dub), David was able to create an entirely different look by using a round cowl. The additional power created by the larger displacement engine put the performance literally off the chart, requiring some careful attention to aileron flutter issues. We'd like to give you the opportunity to read this article again in case you missed it the first time. Read more
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Fournier RF4D
The Fournier RF4D Motorglider
Fournier RF4DThe vintage wood and fabric Fournier RF4D may be the best-kept secret in all of sport aviation. Built in France in the early 1960's, with limited numbers now here in the United States, owning, flying, maintaining, and restoring one of these gems can be the affordable thrill many of us seek. The airframe makes it a glider but the Volkswagen powerplant scoots it along at 115 miles per hour, making it a viable cross country machine, surpassing many of the S-LSA's on the market today. Several owners/restorers came together to present this informational article. Read more
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New Limits vs. Service Limits
Differences Between Aircraft Engines and Auto Conversions

New Limits vs Service LimitsHow new is new? The terms "zero hours since major overhaul" (0-SMOH) or simply "overhauled" and "zero timed" may all seem to mean the same thing, but they don't. Also, do these terms apply to auto conversions as well as certified engines? Noted automobile engine conversion guru and licensed A&P mechanic William Wynne explores the myths and misconceptions of these terms and how they may or may not apply to alternative engines. Read more
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Flying Dave Thatcher's CX4
CX4Once in a while a new experimental aircraft hits the market and instantly makes a homerun. Sometimes it's appearance that draws attention; sometimes it's performance. Sometimes it's the cleverness of its simplicity or ease of construction and sometimes it's the docile handling characteristics.

In the case of the Thatcher CX4, it's perhaps all of the above. In this article written by 17 year old Ted Beck, you'll read the fist-hand experience of a low-time pilot who flies the CX4 for the first time. We don't normally publish these types of stories in Experimenter, but then again, we don't normally get submissions from enthusiastic 17 year old pilots. Read more

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What Our Members Are Building
The Titan All-Metal P-51 Replica Kit, Part One
P-51 Replica"Everybody likes the North American P-51D Mustang!" says Len Bechtold who writes this month about the all-metal Titan T-51, a 3/4 scale replica of the revered fighter. Last month we featured the single-seat, wood-and-fabric Loehle 5151-scale replica. The Titan T-51 gets a little closer to the real thing in size, power, and appearance. This two-seat version of can be built for and flown by sport pilots or as a true high-performance experimental aircraft, complete with retractable gear, including the tailwheel! This article will be the first of three installments that will chronicle Len's journey from crate to flight. Read more
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Lopresti, EAA Chapters Building 'Fury' Kit
Lopresti FuryAfter LoPresti Aviation's Corkey Fornof, chief pilot for the company's Fury airplane, was asked repeatedly over the past year on the air show circuit, "Are you ever going to kit the Fury?" the company decided to explore the possibility. The focus of their research was obvious, and right in their backyard: EAA chapters. Read more
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General Aviation Industry Prepares for an Unleaded Future
The United States Environmental Protection Agency (EPA) has formally begun the regulatory process required by the Clean Air Act that may ultimately result in standards mandating the industry's transition to unleaded aviation gasoline (avgas). The EPA has issued an advance notice of proposed rulemaking (ANPR) which is a key opportunity for the general aviation (GA) community to provide comment regarding this possible new environmental standard and into the development of a plan for identifying, evaluating, and ultimately transitioning to an unleaded fuel. Read more
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Volunteer Videographers Sought For AirVenture
EAA Publications is seeking volunteer videographers. Volunteers will create content for future issues of Experimenter and the nine other monthly e-newsletters EAA publishes year-round. Other projects, such as the daily AirVenture edition of e-Hotline, may be available. If you enjoy creating videos, we are seeking your discerning eye to communicate the excitement, uniqueness, and variety of aircraft and experiences that can be found at AirVenture.

Volunteers, depending on their interest, will work with EAA Publications staff and newsletter editors on specific assignments. Some video editing skills are helpful but not required, and volunteers must bring their own camera. General submissions are welcome. Please contact Fareed Guyot at fguyot@eaa.org or call 920-426-6555.

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Homebuilders, Come to Virginia in May!
A grass-roots fly-in for homebuilders and aviation enthusiasts
Virginia Aviation Council
Are you looking for a new place to fly next month, somewhere along the east coast, maybe an event that in addition to a pancake breakfast could have 300 or more planes on display all weekend...maybe even your plane? Then consider making the trek to Suffolk, Virginia, for the13th Annual Virginia Regional Festival of Flight. In addition to good food, good friends, and a great time, the forums and workshops are tailor-made for homebuilders. Read more
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AERO 2010 Shows off Best of Europe
AEROAERO Expo 2010 at Friedrichshafen, Germany, provided an overwhelming number of new, innovative aviation products, surely reinforcing it as Europe's best general aviation trade show. The show included a wide range of products, including light-sport aircraft, kitplanes, new production airplanes, electric propulsion, rotorcraft, and powerplants. The event demonstrated the unlimited creativity found among those around the world who pursue their passion for flight. View the gallery
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From the EAA Homebuilding Community
Oshkosh 365The 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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Hints for Homebuilders
Hot Glue Gun for Jigging
Mark Forss shows how to use a hot glue gun as a temporary jig. Mark is an EAA staff member who coordinates the EAA SportAir Workshops. Watch the video
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From the Archives
Sport Aviation, July 2002
Jack Cox's 2002 Sun 'n Fun Notebook
Our featured article on the Titan T-51 was inspired by its ever-growing presence at Sun 'n Fun. In 2002, Jack Cox made a report on the new whiz-bang stuff he found at Sun 'n Fun that year, one item being the 3/4-scale T-51 Mustang. It's certainly interesting to see how many of these featured products are still alive and well, as contrasted to those that we never heard from again. Read the article

You can also 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 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 recently purchased a flying homebuilt. Looking at the paperwork, I see that I only have copies of the airworthiness certificate and operating limitations. Am I legal?

A. It's not legal to fly the aircraft if you only have a copy of the airworthiness certificate. You must have an original FAA Form 8130-7, Special Airworthiness Certificate, in the aircraft. You will need to contact your local FAA Flight Standards District Office or designated airworthiness representative and get a replacement. Read more

Read more Q&As

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Homebuilder Gallery of the Month
Titan T-51
Sun 'n Fun 2010 was a banner year for the Titan T-51 with five flying examples on display, several of which were giving rides all week. We were not able to capture all five on the ground at the same time, but here are some detailed photos of those that stood still long enough for the shutter to be snapped. 
View the photo gallery
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Poll Poll
Q.  When choosing an engine for a project or contemplating an engine change for your current aircraft, what type of engine would you choose?

Poll - Vote Now!

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

STANDARD DAY (Standard Atmosphere) - An arbitrary atmosphere established for calibration of aircraft instruments. Standard Air Density is 29.92 inches of mercury and temperature of 59 F/15 C , equivalent to an atmospheric air pressure of 14.7 pounds per square inch.

More glossary terms

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Join EAA

The members of EAA invite YOU to become part of the EAA community.
Join
:: Renew :: Gift
Member Benefits :: About EAA

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Forum Review
Dick Van Grunsven Visits Oshkosh, Presents RV-12 Webinar
Dick Van Grunsven, founder of Van's Aircraft and designer of the Van's RV line of homebuilts, was in Oshkosh this week as part of a forum convened by EAA Chairman/President Tom Poberezny on the aviation industry. He also gave an EAA Webinar presentation Wednesday evening about the RV-12 light-sport aircraft kit plane - which drew 501 attendees! Watch the Webinar
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EAA Radio
EAA RadioDick Van Grunsven talks with EAA Radio's Fareed Guyot about the aviation industry, the RV-12, and another project he hasn't quite finished. Listen to the interview
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Around the Web
Educational videos by Stewart Systems
are available on YouTube. Learn how to use Stewart Systems waterborne products to completely prepare and paint metal-skinned aircraft.

Tons of fun can be had on a small budget with a small plane and a small engine. Such is the case with the SD-1 Minisport homebuilt ultralight aircraft, conforming to FAI UL and light-sport aircraft definitions. Gross weight: 240 kilograms (529pounds). Maximum payload: 130 kilograms (287pounds).

If you're interested in the Flying Flea, Wee Bee, Honey Bee, four-place Queen Bee, Horten VI flying wing, and other such unusual aircraft, this page is a must-visit.

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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Survey
Please review and rate this issue of Experimenter.
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