This day on August 22, 1963 – X-15 Flight 91 reaches the highest altitude of the X-15 program (107.96 km (67.08 mi) (354,200 feet)). pic.twitter.com/kMJG2bcviM
— World of Engineering (@engineers_feed) August 22, 2020
from Twitter https://twitter.com/engineers_feed
August 22, 2020 at 05:29AM
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