- Quest Joint Airlock
The "Quest" Joint Airlock, previously known as the Joint Airlock Module, is the primary
airlockfor the International Space Station. "Quest" was designed to host spacewalks with both EMU and Orlan spacesuits. The airlock was launched on STS 104on July 14, 2001. Before "Quest" was attached, Russian spacewalks using Orlan suits could only be done from the " Zvezda" service module and American spacewalks using EMUs were only possible when a Space Shuttlewas docked. The arrival of "Pirs" on September 16, 2001provided another airlock from which Orlan spacewalks can be conducted.
The "Quest" airlock consists of two segments, the "Equipment lock" that stores spacesuits and equipment, and the "Crew Lock" from which astronauts can exit into space. [cite web | url = http://spaceflight.nasa.gov/station/eva/outside.html | title = Space Station Extravehicular Activity |accessyear=2007|accessmonthday=November 1| publisher = National Aeronautics and Space Administration|author=
NASA|year=2004] It was derived from the Space Shuttle airlock, although it was significantly modified to waste less atmospheric gas when used. It was attached to the starboard CBM of the " Unity" during STS-104. It has mountings for four high-pressure gas tanks, two containing oxygenand two containing nitrogen, which provides for atmospheric replenishment to the American side of the space station, most specifically for the gas lost after a hatch opening during a space walk.
"Quest" was necessary because American suits will not fit through a Russian airlock hatch and have different components, fittings, and connections. The airlock is designed to contain equipment that can work with both types of spacesuits, however, it is currently only able to host American spacewalks because the equipment necessary to work with Russian space suits has not been launched yet, which required the
Expedition 9crew to take a circuitous route to a worksite because of problems with the American space suits.
Camp out procedure
"Quest" provides an environment where astronauts can "camp out" before a spacewalk in a reduced-nitrogen atmosphere to purge nitrogen from their bloodstream and avoid
decompression sicknessin the low pressure, 5 psi (35 kPa), pure-oxygen atmosphere of the spacesuit.Cite web|url=http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts115/interview_tanner.html|title=Preflight Interview: Joe Tanner|accessyear=2008|accessmonthday=February 8|publisher=NASA|year=2006|author=NASA] The previous method of preparing for spacewalks involved breathing pure oxygen for several hours prior to an EVA to purge the body of nitrogen. In April 2006, Expedition 12Commander Bill McArthur and Expedition 13flight officer Jeffrey Williamstested a new method of preparing for spacewalks by "camping out" or spending the night in the "Quest" airlock.cite web | url = http://www.nasa.gov/mission_pages/station/expeditions/campout.html | title = Pass the S'mores Please! Station Crew 'Camps Out' | publisher = NASA|author=NASA|accessdate=2006-04-01] In the chamber, the pressure was reduced from the normal 14.7 psi (101 kPa) to 10.2 psi (70 kPa). Four hours into the Expedition 13 crew's sleep period, an error tone prompted mission controllers to cut short the activity, but the test was still deemed a success. American spacewalk activities thereafter have employed the "camp out" pre-breathing technique. [cite web | title = International Space Station Status Report #06-7 | url = http://spaceflight.nasa.gov/spacenews/reports/issreports/2006/iss06-7.html | publisher = NASA|author=NASA|accessdate=2006-02-17]
High-Pressure Gas Tanks
Two oxygen and two nitrogen High-Pressure Gas Tanks are attached externally to the airlock. These tanks provide a replenishable source of gas to the Atmosphere Control and Supply System and 900 psi oxygen for recharging the space suits (EMUs). Recharging the high pressure tanks is accomplished by the orbiter when it is docked to the station's Pressurized Mating Adapter 2 or Pressurized Mating Adapter 3, using lines that are routed through the pressurized elements. The Oxygen Recharge Compressor Assembly (ORCA) is used to pump oxygen from the shuttle tanks into the high-pressure oxygen tanks on the space station. [cite web|title=STS-104 PAYLOADS|url=http://spaceflight.nasa.gov/shuttle/archives/sts-104/cargo/| publisher=NASA|author=NASA|accessdate=2008-02-21]
The airlock and tank systems were built out of
aluminumand tested at NASA's Marshall Space Flight Centerin Huntsville, Alabamaby the Boeing Company.
*Length: 5.5 m (18 ft)
*Diameter: 4 m (13 ft)
*Weight: 6,064 kg (13,368 lb)
*Volume: 34 m³ (1,200 ft³)
*Cost: $164 million, including tanks
Wikimedia Foundation. 2010.
См. также в других словарях:
Quest (sas) — Le module Quest en cours d assemblage au cours de la mission STS 104 … Wikipédia en Français
Quest (disambiguation) — In literature, a quest is a journey toward a goal.Quest may also refer to:In business: * Qwest, a telecommunications carrier * Quest Aircraft, an aircraft manufacturer in Idaho, USA * Quest Corporation, a defunct Japanese video game company *… … Wikipedia
Quest (station spatiale internationale) — Le module Quest en cours d assemblage au cours de la mission STS 104 L intérieur du m … Wikipédia en Français
STS-104 — Infobox Space mission mission name = STS 104 insignia = Sts 104 patch.png shuttle = Atlantis launch pad = 39 B launch = July 12, 2001, 5:04 a.m. EDT landing = July 24, 2001, 11:38 p.m EDT, KSC duration = 12 days, 18 hours, 36 minutes, 39 seconds… … Wikipedia
Space Shuttle Atlantis — Atlantis OV 104 Atlantis launching STS 122 mission to dock with the International Space Station OV designation OV 104 Country United States … Wikipedia
Assembly of the International Space Station — An artist s impression of the International Space Station s configuration as of March 2011 … Wikipedia
Materials International Space Station Experiment — The Materials International Space Station Experiment (MISSE), is a series of experiments mounted externally on the International Space Station (ISS) that investigates the effects of long term exposure of materials to the harsh space environment.… … Wikipedia
Квест (модуль МКС) — У этого термина существуют и другие значения, см. Квест (значения). Шлюзовой отсек «Квест» Совместный Шлюзовой отсек «КВЕСТ» (анг … Википедия
Unity (ISS module) — ISS Unity connecting module (NASA) The Unity connecting module was the first U.S. built component of the International Space Station. It is cylindrical in shape, with six berthing locations (forward, aft, port, starboard, zenith, and nadir)… … Wikipedia
Liste der ISS-Module — Dies ist die Liste der Module der Internationalen Raumstation (ISS). Sie enthält alle bereits installierten und die aktuell geplanten wesentlichen Bestandteile der ISS, geordnet nach dem Zeitpunkt ihres Starts. Neben einer kurzen Beschreibung des … Deutsch Wikipedia