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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 ...
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]
Extravehicular Mobility Unit (EMU) – used on both the Space Shuttle and International Space Station (ISS). The EMU is an independent anthropomorphic system that provides environmental protection, mobility, life support, and communications for a Space Shuttle or ISS crew member to perform an EVA in Earth orbit. Used from 1982 to present, but ...
The LCVG used with the Apollo/Skylab A7L suit could remove heat at a rate of approximately 2,000 BTU/h (590 W) [4] The LCVG used with NASA's Extravehicular Mobility Unit is primarily constructed of spandex, with a nylon tricot liner. [5] The tubes are made of polyvinyl chloride.
SAFER is fitted around the life support backpack of the space suit (EMU or Extravehicular Mobility Unit).SAFER in no way interferes with suit mobility. The flight test unit was fitted with a single hand control module rigidly attached to the Display and Control Module (DCM) in front of the suit.
The original HUT design for the EMU, first used in 1980, included bellowed shoulder bearings, which allowed for variation in the angle of the shoulder bearings. This allowed for one configuration to ease donning of the suit, and a different configuration to allow maximum mobility during EVA. However, the limited life of the bellows prompted a ...
A portable life support system from the Apollo A7L suit, with its outer cover removed. A primary (or portable or personal) life support system (or subsystem) (PLSS), is a device connected to an astronaut or cosmonaut's spacesuit, which allows extra-vehicular activity with maximum freedom, independent of a spacecraft's life support system.
The I-Suit incorporates improvements in materials and manufacturing techniques which make it both lighter and more mobile than the EMU. While the EMU is solely intended for the microgravity environment, where weight is not an issue, the I-Suit's planetary role makes weight a critical factor. By replacing the EMU's fiberglass Hard Upper Torso (HUT) section with a soft upper torso, or SUT, and ...