From Boeing's Global Positioning System Space and Ground Segment Manager who developed PHM technology to win funding for the GPS program by the Department of Defense is Volume IV that includes 6 more of the author's published papers by the International Telemetry Foundation aerospace and defense industries Conference that explains why NASA, commercial and the U.S. military spacecraft and any large complex defense weapons fail prematurely at rates from 10% to 60% and how to stop them from failing using PHM technology and why the U.S. military and the U.S. government refuse to require its space systems and weapons systems suppliers to produce and deliver systems that won't fail prematurely. The author includes how he developed PHM technology on the Air Force's GPS program to win funding for the GPS program. PHM analysis done before or after ATP identifies the equipment with premature aging that will cause a premature failure for replacement at the factory before shipment to the customer and/or launch making getting to space and playing in space safe for space tourists and astronauts. At the end of Volume IV is a matrix that identifies the volume for each of Len Losik's papers it is published.