“A Jeep with Wings” Hap Arnold said. From this simple directive sprang the CG-4A glider. Meet the men and women who took on new roles and skills to build Cargo Gliders for the U. S. Army Air Forces. Discover how factories made to build refrigerators, pianos, and baby food transformed for CG-4A production. From Promise to Production contains artifacts, images, and information drawn from the Silent Wings Museum collection to tell this amazing aspect of the WWII Military Glider Program.