From
http://www.swissmustangs.com
The US Army procured 3 F-51 Mustangs for use as chase-planes and various other duties - two newly built Cavalier F-51's and one fully refurbished F-51D - the two Cavaliers were serialled 68-15795 & 68-15796, while the third aircraft retained its original serial 44-72990.
This is one of two Cavalier Mustangs delivered to the US Army for use as chase-planes in the AH-56 "Cheyenne" attack helicopter project. The serial is 68-15796. Photograph was taken at Lancaster, CA, October 1971.
After the AH-56A project had been dropped, the Army Cavaliers were looking for a new job and soon were sent to NAS China Lake, where they were used in 106 mm recoilless rifle tests. Seen here with this weapon attached at the wing-tips is 68-15796, photographed 20th June 1974
Shay
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Semper Fortis