Encyclopedia Astronautica
Lines of non-extension suit

American pressure suit, tested 1955. Developmental partial pressure suit concept by Arthur S Iberall while at the Rand Corporation.

Arthur S. Iberall developed the Lines of Non-Extension concept/suit at the National Bureau of Standards in 1947. The physics, physiology, and orthopedics that were required to understand the major forces exerted by a human body on clothing and how the forces could be distributed with a woven network were presented to David Clark in 1951 at the Navy's request. At this demonstration, the full pressure suit was pressurized to 2 psi. In 1955, while working at the Rand Development Corp, Iberall built the second prototype and demonstrated it under 3.75 psi to the Air Force at the infamous 1955 meeting that led to development of the first true space suits for the X-15 project. Dave Clark patented the woven network as Linknet and went on to use it for the X-15 and Gemini space suits. Iberall's technical description of the Lines of Non-Extension Suit was not allowed to be published until 15 years later (Iberall, A.S., "The experimental design of a mobile pressure suit", Journal of Basic Engineering, Transactions of the ASME, June 1970, p. 251-264.

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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
  • Rand American manufacturer of rockets and spacecraft. Rand, Santa Monica, CA, USA. More...

  • Sears, William J, A Historical Review of Partial and Full Pressure Suits, Web Address when accessed: here.
  • "Personal communication", Personal communication from family member or person directly involved with the article..

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