NASA TECHNICAL NOTE NASA TN 0 6850 C! I
surface, the landing gear must prevent impact of the descent-stage base heat shield, fuel tanks, and plumbing with the lunar surface; however, the descent-engine skirt may contact the lunar surface. For the purpose of ascent-stage lift-off, the landing gear must allow the vehicle to come to rest so that the vehicle X-axis (fig. 1) does not ex
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