Joe Engle Signed ASSESS 2 Spacelab Simulation Cover, Ames Research Center, 1977 View Watchlist >
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Lot # Nasa110H
System ID # 29520384
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Joe Engle Signed ASSESS 2 Spacelab Simulation Cover, Ames Research Center, 1977
In the spring of 1977, Joe Engle was one of the most consequential test pilots alive — and almost nobody outside the astronaut corps knew his name. He'd already punched through 280,000 feet in the X-15, earning Air Force astronaut wings before NASA had decided what to do with him. He'd trained for the Moon and watched the mission go to someone else. Now he was deep in Space Shuttle preparation, and by August he'd be flying Enterprise in the Approach and Landing Tests at Edwards. This cover was signed during the window between those two chapters.
The cover was franked and postmarked at Moffett Field, CA on May 16, 1977 — the opening day of ASSESS 2 (Airborne Science/Spacelab Experiments System Simulation), a ten-day joint NASA–ESA rehearsal for Spacelab operations aboard a Convair 990 research aircraft. The magenta program legend on the face — "10 Day Spacelab Experiments System Simulation / May 16–25" — places this cover precisely at the moment. Engle's signature in blue-black ink is bold, confident, and signed across the open field of the cover rather than tucked into a corner. The reverse carries a typed biographical paragraph identifying him as Colonel, USAF, summarizing his X-15 record and noting his current shuttle assignment — a contemporary document that doubles as a provenance note.
Authenticity
Signature is consistent with Engle's known autograph from the period. A Certificate of Authenticity from Mesilla Valley Estate Sales will be issued with this lot.
Collector's Note
Engle is one of only two pilots to fly the Space Shuttle manually from orbit — on STS-2 in 1981, he overrode the autopilot and hand-flew the entire entry, a decision that generated both controversy and awe in equal measure. He remains one of the few people to have earned astronaut wings twice, under two different programs. Covers tied to specific simulations and test events from the pre-Shuttle buildup are substantially harder to source than post-flight commemoratives. This one documents Engle at a precise and significant moment, with his signature as the centerpiece.
CONDITION
Very Good. Cover is clean with a crisp magenta cachet, legible postmark, and bold unsmeared signature. Light handling wear and faint toning at the edges; reverse biographical text is fully legible.
DIMENSIONS / SPECIFICATIONS
- Cover: 3 5/8" × 6 1/2"
- Postmark: Moffett Field, CA — May 16, 1977
- Franking: 13¢ US Airmail stamp
- Signed: "Joe Engle" in blue-black ink, recto
- Reverse: Typed biographical text, typewritten
- Certificate of Authenticity: Mesilla Valley Estate Sales, included
