LT. COLONEL ELLISON S. "EL" ONIZUKA - COMMEMORATIVE ENVELOPE SIGNED - HFSID 50137
Sale Price $360.00
ELLISON S. ONIZUKA
Ellison Onizuka signs a commemorative envelope honoring Shuttle Full Duration Firing.
Commemorative Envelope signed: "Ellison S. Onizuka/Space Shuttle Astronaut", 6½x3½. Envelope honoring the complete static firing of the shuttle. 15 cent flag stamp attached postmarked Saint Louis, Mississippi, December 17, 1979. Rubber-stamped "Shuttle/Full Duration Firing" cachet at left. On December 17, 1979, for the first time, a complete static firing of the shuttle was accomplished. It included three main engines running up to 100 percent of rated thrust for 554 seconds. Onizuka (1946-1986) flew aboard Discovery 51-C, January 24-27, 1985, the first shuttle mission with military objectives. Ironically, Challenger was scheduled for Mission 51-C, but thermal tile problems forced substitution of Discovery. Onizuka's next assignment was aboard Challenger 51-L, January 28, 1986, which exploded 73 seconds after liftoff, killing him and his six colleagues. Slightly soiled at lower right blank corner. Fine condition.
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