Encyclopedia Astronautica
MC-4A


American pressure suit, operational 1958. A modified MC-4 with height/weight fit for fighter aircraft, anti-G suit. Suits produced by David Clark, Berger Brothers and Seymour Wallace.

The MC-3 and MC-4 series of suits used the MB-5, MA-2 (ILC Dover) and MA-3 (Bill Jack) helmets.

The MB-5 helmet was virtually indistinguishable from the improved K-1 or MA-2 helmets except for AIC-10 headset. Later developments following the original partial pressure suit helmets resulted in the very different appearing MA-1 and MA-3 series helmets, which were far more comfortable designs that integrated helmet internal protection and sizing components into a single assembly (featuring a moveable transparent visor) that could be worn with both full pressure and partial pressure type suits. Ironically, developments of ensuing decades would come full circle with a return from the 'long-term' survival concept that was then taking hold, to the original 'get-me-down' idea which had produced the earliest partial pressure designs.

More... - Chronology...


Associated Countries
See also
  • Space Suits To explore and work in space, human beings must take their environment with them because there is no atmospheric pressure and no oxygen to sustain life. Inside the spacecraft, the atmosphere can be controlled so that special clothing is not needed. But in order to work outside the spacecraft, humans need the protection of a spacesuit. More...

Associated Manufacturers and Agencies
Bibliography
  • Sears, William J, A Historical Review of Partial and Full Pressure Suits, Web Address when accessed: here.

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