Posts: 287
From: Shorewood, MN, USA
Registered: Sep 2004

posted 07-28-2007 03:16 PM               

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Do I have it right that the Mariner 4 tape recorder could only be recorded to once?

That is, the TV camera snapped images, laid to the tape, and then that was it. They could be played back multiple times (and were played twice), but no ability to rewind the tape and re-record.

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Posts: 432
From: Orange, California USA
Registered: Sep 2006

Posts: 432
From: Orange, California USA
Registered: Sep 2006

posted 09-14-2007 07:17 PM               

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Thanks for the download of the Mariner Mars 1964 Handbook. In reading the flight events of Mariner III (page 24) there was a spacecraft "shock" noted at 1 min 44 secs into flight. I wonder if this could have been the internal shroud insulation being damaged by the falling ambient pressure and tangling the shroud to the spacecraft.

I have not read that this event noted by telemetry was the actual failure point. Maybe I just learned something?