This Buffalo started out as a CV-7A Buffalo for the US Army with serial 63-13687. Designed as a CV-2 Caribou replacement, it got caught up in an inter service rivalry when the USAF objected to Army large fixed wing transports. The program was taken over by the Air Force and only four test aircraft were delivered. Transferred to the University of Michigan (N325D), it was operated for the National Center for Atmospheric Research. Transferred to NASA in 1975, the aircraft was modified as a Quiet Short-Haul Research Aircraft (QSRA) and was registered as N715NA in 1978 for the program.

The highly modified DHC-5 Buffalo Quiet Short-Haul Research Aircraft (QSRA) was photographed stored on the NASA Ames Research Center ramp at Moffett Federal Airport in Mountain View, California in February 2020. It was also known as the Quiet STOL Research Aircraft.

Photographed at the D Day 50th Anniversary Photocall at a very wet Yeovilton, whilst a group of spotters in the background try to peer through closed hangar doors in time honoured tradition. Later preserved at Walcott in Lincolnshire