Paper Wing SP-1 Bowlus   

General Details
Manufacturer: Bowlus
Plane Name:

Paper Wing SP-1

Classified as: Unclassified
Country Of Origin: U S A
Designer: Hawley Bowlus
No. of Seats 1
No. Built 0
L/DMax: 20


Span Area Empty Weight Payload Gross Weight Wing Load Water Ballast
m ft sq.m sq.ft kg lb. kg lb. kg lb. kg
kg lb.
13.4 44 16.63 179 73 160 66 145 139 305 8.36 1.7 0 0
Aspect ratio: 11
Airfoil: 35-A
Structure: wood/fabric

The paper Wing, so called because it used paper webbed ribs, first flew in 1929. Wingspan was later increased to 14.33 m. / 47.0 ft. principally by extending the ailerons. It was first U.S. built sailplane to fly for more than 1 hour. A replica of the Paper Wing belongs to the San Diego (CA) Museum of Flight. AS a footnote, a Bowlus design (or a copy), the Nighthawk, flown by William A. Cocke gained the world endurance record of 21 hr. 34 min in 1931. This glider is in the museum of flying, Santa Monica, CA


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