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This suit is the model RX-4 and is little changed from its predecessor. Litton began adapting its line of vacuum chambers suits first for the Air Force in 1955 and then for NASA in 1964. The Litton suits were articulated exoskeletons that maintained a constant volume through a full range of motion. The RX-4 was built to deomonstrate its compatiblity with the existing liquid cooling and personal life support systems that NASA used during Apollo missions. The suit is modular with magnesium/lithium alloys in the rotary seals, and electron-beam welding techniques which helped reduce the weight of this suit to 63 lbs from the 90 pound weight of previous models
These experimental suits were part of NASA's Advanced Extra-Vehicular Suits (AES) program. They could operate at higher pressure, thus reducing the time-consuming oxygen pre-breathing period before extra vehicular activities.
NASA transferred this suit to the Museum in 1976.
Display Status
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin
United States of America
Type
PERSONAL EQUIPMENT-Pressure Suits
Manufacturer
Litton Industries Dimensions
Approximately: 75 inches long x 35 inches wide x 16 inches deep (190.5 x 88.9 x 40.64cm) Materials
Plastic, metal (aluminum)
other: plastic, aluminum, steel, neoprene-coated nylon, leather, phenolic resin, anodized aluminum, gold plating, natural rubber, foam, rubber (silicone) Inventory Number
A19760873000
Credit Line
Transferred from NASA - Manned Spacecraft Center
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
For more information, visit the Smithsonians Terms of Use.