gandalf@pro-canaveral.cts.com (Ken Hollis) (11/15/90)
Grettings and Salutations: >From: rogers@venera.isi.edu . . . >door operation. You mentioned that the design provides for single >motor failures, althought not double motor failures. I was wondering >if you might post to the net a summary of the failures, if any, that >have actually occured in this phase of Shuttle operation. Thanks. > Craig Milo Rogers There have been no motor failures either in orbit or during normal flow processing. A "Flow" is the work required to check out the vehicle for the next flight and reconfigure it to the next payload. There have been some (expected) microswitch failures, but there is a torque limiter device in the motor driver to keep the motor from driving the mechinism too far. There also is included in the astronauts crew kit a wrench for closing the doors manually requiring an EVA. Ken Hollis ProLine: gandalf@pro-canaveral Internet: gandalf@pro-canaveral.cts.com UUCP: crash!pro-canaveral!gandalf