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By delivering oxygen to the helmet and drawing gas from the extremities, the suit is designed to ensure that the suit occupant breathes the freshest possible oxygen. The operating pressure of the space suit is maintained at 4.3 psi (30 kPa) (0.3 atm ~ one third of Earth atmospheric pressure) during extravehicular operations, and 0.7 psi (4.8 ...
Generally, to supply enough oxygen for respiration, a space suit using pure oxygen must have a pressure of about 32.4 kPa (240 Torr; 4.7 psi), equal to the 20.7 kPa (160 Torr; 3.0 psi) partial pressure of oxygen in the Earth's atmosphere at sea level, plus 5.3 kPa (40 Torr; 0.77 psi) CO 2 [citation needed] and 6.3 kPa (47 Torr; 0.91 psi) water ...
The names for both the Apollo and Skylab space suits were Extravehicular Mobility Unit (EMU). [2] The Apollo EMUs consisted of a Pressure Suit Assembly (PSA) aka "suit" and a Portable Life Support System (PLSS) that was more commonly called the "backpack". [3] The A7L was the PSA model used on the Apollo 7 through 14 missions. [4]
The E.M.U Display and Control Module (DCM). The EMU, like the Apollo/Skylab A7L spacesuit, was the result of 21 years of research and development. [Note 1] It consists of a Space Suit Assembly (SSA) assembly which includes the Hard Upper Torso (HUT), arm sections, gloves, an Apollo-style "bubble" helmet, the Extravehicular Visor Assembly (EVVA), and a soft Lower Torso Assembly (LTA ...
A Hard Upper Torso Assembly, or HUT, is a central component of several space suits, notably Roscosmos' Orlan and NASA's Extravehicular Mobility Unit (EMU). The fiberglass HUT forms a rigid enclosure about the upper body of the occupant, providing pressure containment for this part of the body.
The PPPS is a sophisticated variety of personal protective equipment (PPE), a type of hazmat suit, which is air-tight and designed for positive pressure to prevent contamination to the wearer even if the suit becomes damaged. BSL-4 cabinets and "Suit Laboratories" have special engineering and design features to prevent hazardous microorganisms ...
The Mercury space suit (or Navy Mark IV) was a full-body, high-altitude pressure suit originally developed by the B.F. Goodrich Company and the U.S. Navy for pilots of high-altitude fighter aircraft. It is best known for its role as the spacesuit worn by the astronauts of the Project Mercury spaceflights.
The space suit used for EVA during Space Shuttle missions is the Extravehicular Mobility Unit (EMU), which has two parts: the space suit assembly (SSA), manufactured by ILC, and the life support system (LSS), manufactured by Hamilton Sundstrand (previously Hamilton Standard). The SSA is made of individual components which are assembled to fit ...