Encyclopedia Astronautica
1966.10.07 - Apollo AS-202 impact error analzyed


In a memorandum to the NASA Deputy Administrator, Associate Administrator for Manned Space Flight George E. Mueller commented on the AS-202 impact error. Mueller said the trajectory of the August 25 AS-202 mission was essentially as planned except that the command module touched down about 370 kilometers short of the planned impact point.

A detailed study indicated that the command module had a lower than predicted angle of attack and a correspondingly lower lift-to-drag ratio. "In retrospect, it appears that our wind tunnel testing did not provide a complete understanding of . . . hypersonic aerodynamic characteristics of the command module." Plans were being made to fly AS-204 and AS-205 with the lower lift-to-drag ratio.

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