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This pressure helmet is a transparent bubble made for and worn by James Irwin, Lunar Module Module pilot for the Apollo 15 mission in July, 1971.
The Apollo pressure helmet was a transparent bubble designed to attach to the spacesuit neck ring. It was constructed of a polycarbonate shell with a red anodized aluminum neck ring, a feed port, a vent pad and duct assembly attached to the rear and a valsalva device attached to the inner ring. The valsalva device was installed so that the astronaut could "blow" his nose to prevent his ears from "popping" during the rapid ascent of launch.
There were two configurations of these pressure bubbles used on Apollo suits which were not interchangable. The style used during the Apollo missions 7 through 10 was of anodized blue aluminum, while those used from Apollo 11 through the end of the program were of anodized red aluminum.
Transferred to the National Air and Space Museum from NASA in 1974.
Country of Origin
United States of America
Type
PERSONAL EQUIPMENT-Helmets & Headwear
Manufacturer
Air Lock Inc. Astronaut
James B. Irwin Dimensions
3-D: 24.1 x 29.2cm (9 1/2 x 11 1/2 in.)
Other (neck ring): 9 3/4in. (24.8cm) Materials
Bubble: Transparent polycarbonate
Neck Ring: Red adonized aluminum
Comfort/vent pad: Blue anodized aluminum with padded beta-cloth pad
Feed Port: Blue anodized aluminum w.velcro patch Inventory Number
A19740132002
Credit Line
Transferred from the National Aeronautics and Space Administration
Data Source
National Air and Space Museum
Restrictions & Rights
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