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Backstrom EPB-1 Flying Plank
The Backstrom EPB-1 Flying Plank is an American mid-wing, single seat, flying wing glider that was designed by Al Backstrom, with assistance from Phil Easley and Jack Powell in 1954 and made available as plans for amateur construction.〔Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 12. Soaring Society of America, November 1983. USPS 499-920〕
==Design and development==
The Flying Plank was intended to be an aircraft that could be built at home, that would be of minimum size and yet still provide reasonable soaring performance. The prototype Plank featured tip rudders and was used for drag-reduction tests conducted at Mississippi State University before it was then retired. The EPB-1 designation indicates the design team's last names.〔〔
The EPB-1 is constructed with a wooden structure, with doped aircraft fabric covering. The landing gear is a monowheel, with a nose skid.〔〔
The "A" model was described in the plans sold and retained the twin tip rudders of the EPB-1, although some were built with a single fin and rudder assembly attached to the cockpit rear. At least one two-place side-by-side seating version was built in Australia, and another as a motor glider. The standard wingspan is , but versions have been built with spans up to .〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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