New answers tagged

19

Water was used for many purposes in the shuttle. The particular application you are asking about is the Water Spray Boiler (WSB), part of the Auxiliary Power Unit / Hydraulic (APU/Hyd) system. This device provided cooling to the lubrication oil in the APU and to the hydraulic fluid as required. Each of the three APU/Hyd systems had a dedicated WSB. This ...


Top 50 recent answers are included