 | | A
suited subject is suspended above a test area to demonstrate various
techniques for applying a room-temperature vulcanized (RTV) material
to the Space Shuttle's exterior.
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 | | An
astronaut in a spacewalking suit works underwater at NASA's Neutral
Buoyancy Lab, which is located near the Johnson Space Center in Houston, Texas. He is translating down an air beam to simulate moving along
the exterior of the Space Shuttle.
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 | | Aboard
NASA's KC-135 aircraft, a test subject floats in momentary microgravity
to demonstrate a method for applying a silicon adhesive to a Space
Shuttle thermal tile. The subject wears a pair of spacewalking gloves
to test the difficulty of performing the procedure in the bulky gear.
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 | | An
astronaut in a spacewalking suit works underwater at NASA's Neutral
Buoyancy Lab, which is located near the Johnson Space Center in Houston, Texas. He is performing a thermal tile repair test on an air beam
at the bottom of the pool.
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 | | Aboard
NASA's KC-135 aircraft, a test subject floats in momentary microgravity
to demonstrate a procedure for spreading a silicon adhesive on a Space
Shuttle thermal tile. The microgravity environment adds a level of
difficulty to the procedure, because every time the subject pushes
on the adhesive material with a spreading trowel, she moves away from
the tile.
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 | | Technicians
at the Johnson Space Center in Houston, Texas, demonstrate the use of a variety of tools for spreading and smoothing room-temperature
vulcanized (RTV) material.
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 | | A
test subject at the Johnson Space Center in Houston, Texas, demonstrates a method for on-orbit repair of a Space Shuttle thermal tile. The
Strela Boom Precision Air-Bearing Floor provides a means of simulating
microgravity conditions that could hamper tile repair in space.
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