Here are details about a : Space commemorative cover or Space Cover.

Cosmodrome / Location : USA
Date of Cancellation: Dec. 28, 2025 Event Type : Test Launch Pad / Location : USA Edwards AFB (CA) Manned / Robotic Mission : Manned Mission Objective/Type : Experimental / Science
ou?/where?: au sol - ground
autographe?: non - noneDescription : The sonic boom is a pollution and nuisance that hits the ground throughout the trajectory of a supersonic plane (broken windows, etc.). The X-59 is a NASA prototype aimed at validating techniques to mitigate this effect.
This was at the time the excuse found by the USA to prohibit the flight over the United States by a supersonic jet, the Concorde. Keyword(s) : #Aviation, #Flags, This will be featured in a future Space Revue. Last modified: 06/11/2026 @ 09h10
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USA 3965 L | 15,- |
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Page : future · Ref: USA 3965 LSpace Event : NASA X-59 SILENT SUPERSONIC TRANSPORT
USA 3965 A
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