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Internet Colors - Set of 1035
International Orange (aerospace) Color 451 - #FF4F00
International orange is a color used in the aerospace industry to set objects
apart from their surroundings, similar to safety orange, but deeper and with a
more reddish tone.
The Advanced Crew Escape Suits pressure suits worn by NASA astronauts and the
previous Launch Entry Suit, also use this color, as opposed to the lighter tone
of safety orange used by the United States Air Force's high-altitude suits.
This is also planned for the new Constellation Space Suit systems that
astronauts will wear after 2010.
The ACES was first worn by U.S. Air Force pilots in the mid-1970s[citation
needed], replacing a similar suit worn by SR-71 and U-2 pilots, and was
identical to the suits worn by X-15 pilots and Gemini
astronauts. Unlike the ACES suit, which is a full-pressure suit, the
high-altitude suits were partial pressure suits, thus requiring a rubber
diaphragm around the wearer's face.
Because of the limitations of protection the LES could offer, NASA and the
David Clark Company introduced the current ACES design in 1994, which was the
only suit used for Shuttle missions after 1998. Based on the LES, but being a
full-pressure suit, the ACES suit now incorporates gloves on disconnecting lock
rings on the wrists, liquid cooling and improved ventilation, and an extra
layer of insulation. The ACES suit is analogous to the Sokol suits used for
Soyuz missions and its functions are virtually the same — the only differences
being the ACES suit having a detachable helmet and survival backpack, while the
Russian suit has an integrated helmet and no backpack (due to the limitations
in space aboard the Soyuz, and that the spacecraft is an entry capsule, not a
winged spacecraft or lifting body).
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