Posts: 3715
From: Netherlands
Registered: Nov 2001

posted 01-20-2024 04:50 AM               

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Skylab 4 commander Gerry Carr is seen with the Manned Manoeuvring Unit (MMU) during fit checks at the Kennedy Space Center on August 12, 1972.

Posts: 110
From: Irvine, CA USA
Registered: May 2014

Posts: 1423
From: Boston, MA
Registered: Jul 2003

posted 01-20-2024 08:54 PM               

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How about with suit and without suit? There was an insert on the AMU for using the unit without a suit. That could change the CG of the unit.

Jack Lousma told me last year that when Al Bean first tested the unit with the suit on, he forgot to take that insert out and Al could feel it.

Posts: 805
From: Hudson, MA
Registered: Jul 2005

posted 01-20-2024 10:17 PM            

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Great picture — thank you!

I believe it was called the M509 Automatically Stabilized Maneuvering Unit (ASMU) based on NASA publication SP-4219 chapter 13, "More Favored than the Birds": The Manned Maneuvering Unit in Space.

Posts: 1437
From: Staten Island, New York USA
Registered: Nov 2007