Skip to main content

In 1953 Paul Poberezny and a group of other aviation enthusiasts (including the renowned aircraft designer Ray Stits) formed the Experimental Aircraft Association. During the last 50 plus years, the organization, now headquartered at Oshkosh, Wisconsin, has championed the home-built aircraft, and private pilots. The Light Aircraft Association (formerly the Popular Flying Association) performs a similar function in the U.K., including the provision of technical support and engineering inspection for home-built projects.

The EAA has, over the years, issued a series of plans for aircraft of their own design, one of which was the EAA Biplane. Paul Proberezny asked Jim Stewart of the Allison Engine Company to lead a team of engineers in the design of the EAA Biplane, an aircraft which turned out to be rated at +6g/-6g and capable of taking a range of engines anywhere from 85 to 150 hp. The aircraft was unusual in that despite having enough power to have two seats fitted, it was always intended to be a single-seater; this restricted the potential market, somewhat. Never the less, over 130 sets of plans were sold (at $20 a set), and at least 88 aircraft were completed and flown in the USA.

In 1963, Ronald Maidment built an EAA Biplane in the U.K.; the project was overseen by the PFA, which gave it a construction number of 1314. G-AVZW is now owned and operated by the ‘Zulu Whisky Group’ and is seen here at Hullavington during a Great Vintage Flying Weekend event. Power is provided by a Lycoming O-290-D (Conversion) producing about 130 hp. It is probable that the conversion was from an O-290-G, a non-aircraft rated version of the engine, used originally as a Ground Power Unit. After machining off the prominent front flange of the O-290-G, and utilizing certain parts from Lycoming O-420 and O-290 engines, a flight-capable engine can be produced at much less cost than for a ‘real’ O-290-D. Although this process is discussed on the web, and conversion manuals are available online, this conversion is NOT for the faint-hearted!

The O-290-D will burn fuel at about 7 gallons an hour in cruise, giving an endurance of about five hours, and a speed approaching 140 mph. The EAA stopped selling sets of plans for the Biplane in 1972; this coincided with their launch of the EAA Acro Sport P-8 (powered by a Lycoming O-360 of 180 hp) a close relative of the Biplane. It is a shame that more EAA Biplanes were not built, for they are a handsome aircraft!

http://peoplesmosquito.org.uk

http://shortfinals.wordpress.com

Originally posted to Kossack Air Force on Thu Apr 18, 2013 at 04:00 PM PDT.

Also republished by Aviation & Pilots.

EMAIL TO A FRIEND X
Your Email has been sent.
You must add at least one tag to this diary before publishing it.

Add keywords that describe this diary. Separate multiple keywords with commas.
Tagging tips - Search For Tags - Browse For Tags

?

More Tagging tips:

A tag is a way to search for this diary. If someone is searching for "Barack Obama," is this a diary they'd be trying to find?

Use a person's full name, without any title. Senator Obama may become President Obama, and Michelle Obama might run for office.

If your diary covers an election or elected official, use election tags, which are generally the state abbreviation followed by the office. CA-01 is the first district House seat. CA-Sen covers both senate races. NY-GOV covers the New York governor's race.

Tags do not compound: that is, "education reform" is a completely different tag from "education". A tag like "reform" alone is probably not meaningful.

Consider if one or more of these tags fits your diary: Civil Rights, Community, Congress, Culture, Economy, Education, Elections, Energy, Environment, Health Care, International, Labor, Law, Media, Meta, National Security, Science, Transportation, or White House. If your diary is specific to a state, consider adding the state (California, Texas, etc). Keep in mind, though, that there are many wonderful and important diaries that don't fit in any of these tags. Don't worry if yours doesn't.

You can add a private note to this diary when hotlisting it:
Are you sure you want to remove this diary from your hotlist?
Are you sure you want to remove your recommendation? You can only recommend a diary once, so you will not be able to re-recommend it afterwards.
Rescue this diary, and add a note:
Are you sure you want to remove this diary from Rescue?
Choose where to republish this diary. The diary will be added to the queue for that group. Publish it from the queue to make it appear.

You must be a member of a group to use this feature.

Add a quick update to your diary without changing the diary itself:
Are you sure you want to remove this diary?
(The diary will be removed from the site and returned to your drafts for further editing.)
(The diary will be removed.)
Are you sure you want to save these changes to the published diary?

Comment Preferences

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site