Preliminary Design of an Auxiliary Power Unit for the Space Shuttle. Volume 4: Selected System Supporting Studies

Download or read book Preliminary Design of an Auxiliary Power Unit for the Space Shuttle. Volume 4: Selected System Supporting Studies written by and published by . This book was released on 1972 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected system supporting analyses in conjunction with the preliminary design of an auxiliary power unit (APU) for the space shuttle are presented. Both steady state and transient auxiliary power unit performance, based on digital computer programs, were examined. The selected APU provides up to 400 horsepower out of the gearbox, weighs 227 pounds, and requires 2 pounds per shaft horsepower hour of propellants.