Encyclopedia Astronautica
Model 4


American pressure suit, operational 1950. The Model 4 Full Pressure Suit was developed for D-558-2 Douglas Skyrocket test pilots. It was first flown by Navy test pilot Marion Carl for a 26 km altitude record flight.

Integrated arm scye bearings (non-sealed) provided improved mobility. Custom sizing was required to tailor the suits to individual test pilots. This was the forerunner of the X-15 full pressure suit and was developed by the David Clark Company and Scott Crossfield at NACA.

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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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