Ryan XV-8 Fleep (N140N) Crash April 27, 1965 NASA Langley Research Center (Patreon)

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Ryan XV-8 Fleep (N140N) crashes on April 27, 1965, killing pilot Lou Everett.

Originally a public domain film from NASA, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.

The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).

https://en.wikipedia.org/wiki/Ryan_XV-8

Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/

The XV-8 Flexible Wing Aerial Utility Vehicle (nicknamed Fleep, short for "Flying Jeep") was an improved version of the Flex-Wing. Both aircraft were built by Ryan Aeronautical Company in collaboration with NASA for the United States Air Force and the United States Army and tested in 1961 as a STOL patrol, reconnaissance and light utility aircraft to transport people or freight when a more specialized aircraft is not required or available...

Design and development

The Fleep began as the Flex-Wing. The Flex-Wing had four-wheel landing gear, a smaller nose section behind which the pilot sat, and a single vertical tail/rudder, whereas the Fleep had tricycle landing gear, a larger nose section and a V tail/rudder. The wing was a fabric delta-shaped Rogallo wing with a fold-able frame; the wing was attached to a pod-like cockpit on a four-wheeled cargo platform. It was tested with two tail configurations — vertical fin and V-tail. The aircraft wing could be folded into a relatively small package for transport.

https://en.wikipedia.org/wiki/Rogallo_wing

The Rogallo wing is a flexible type of wing. In 1948, Francis Rogallo, a NASA engineer, and his wife Gertrude Rogallo, invented a self-inflating flexible wing they called the Parawing, also known after them as the "Rogallo Wing" and flexible wing. NASA considered Rogallo's flexible wing as an alternative recovery system for the Mercury and Gemini space capsules, and for possible use in other spacecraft landings, but the idea was dropped from Gemini in 1964 in favor of conventional parachutes...

https://en.wikipedia.org/wiki/NASA_Paresev

The Paresev (Paraglider Research Vehicle) was an experimental NASA glider aircraft based upon the kite-parachute studies by NASA engineer Francis Rogallo.

Between 1961 and 1965 the ability of the Rogallo wing (also called "Parawing") to descend a payload such as the Gemini space capsule safely from high altitude to ground was studied. The Paresev was a test vehicle used to learn how to control this parachute-wing for a safe landing at a normal airfield.

Publicity on the Paresev and the Ryan XV-8 "Flying Jeep" aircraft inspired hobbyists to adapt Rogallo's flexible wing airfoil onto elementary hang gliders leading to the most successful hang glider configuration in history...