Shirt-sleeve environment

Source: Wikipedia, the free encyclopedia.
Astronauts Leroy Chiao (left) and William McArthur, who earlier shared space walk time to work on the exterior of the International Space Station (ISS), are pictured here in the shirt-sleeve environment of the Functional Cargo Block (FGB) on the station. The two mission specialists were in the process of changing out the Y-cable in the FGB.

"Shirt-sleeve environment" is a term used in

Respirator masks needed to cover the mouth and nose. Silk socks were worn to retain heat. Sometimes leather clothing, such as boots, were electrically heated. When jet fighter aircraft reached still higher altitudes, something similar to a space suit had to be worn, and pilots of the highest reconnaissance aircraft
wore real space suits.

Commercial

spacewalks
.

This term is also used in science fiction to describe an alien planet with an atmosphere breathable by humans without special equipment.[1]

The Space Shuttle's Spacelab Habitable module was an area with expanded volume for astronauts to work in a shirt sleeve environment and had space for equipment racks and related support equipment for operations in Low Earth orbit.[2]

One of the goals for MOLAB rover was to achieve a shirt-sleeve environment (compared to a lunar rover which was open to space and required the use of space suits to operate).[3] One of the considerations was the habitable volume that could be occupied.[3]

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