Parasev 1-A
The Paresev was unpowered, the "fuselage" an open framework fabricated of welded 4130 steel tubing referred to as a "space frame." The keel and leading edges of the wings were constructed of 2 1/2-inch diameter aluminum tubing. The leading edge sweep angle was held constant at 50 degrees by a rigid spreader bar.
- X
https://www.nasa.gov/image-detail/parasev-1/
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