Flight-ready duct fan intended for mounting in the Skylab Orbital Workshop space station ventilation control subsystem. Cylindrical fan assembly measures approximately 7.5 x 7 x 7, weighs 12.5 pounds, with a handle and power supply plug at the top. A parts identification plate affixed to the center from the George C. Marshall Space Flight Center identifies the part as “Fan Assy (Heat Exchr).” A smaller parts label is affixed to a component of the fan, again from the George C. Marshall Space Flight Center, serial number 8, with an accepted date of May 1972. The fan (installed as a cluster of four) delivered conditioned and recirculated atmosphere to the crew. It was designed for easy replacement; squeezing the handle retracted the fan retainer pins and released the fan from its mounted location to facilitate exchange by the astronauts. RR Auction COA.
Terms and abbreviations used in our descriptions.