Lot 557
X-24B, 1973, "Rocket Plane Test Flight" Cover (Nr. B7-14) This cover has a red/green printed cachet and a typed cachet overlay with handwritten flight details. There is a 12 Dec. Edwards AFB machine cancel and the cover is signed by pilot John Manke.This flight reached a speed of 627 mph and an altitude of 64,500 feet with a flight duration of 430 seconds.
The X-24B flew between August 1, 1973 and Sept. 28, 2005. Of the 36 flights flown, 16 were flown by John Manke. Top speed eventually reached was 1164 mph with an altitude of 74,130. The plane is presently on display at the US Air Force Museum at Wright Patterson AFB in Ohio.
This is an important cover that is not yet listed in the E-Z Rocket Mail catalog. Rare.
Estimated Value $250 - 350.
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