Sandia National Laboratories is responsible for the design of recovery systems for atomic artillery shells that are periodically tested by artillery firings. It is desirable to have a recovery system that exhibits a high degree of reliability due to the costs associated with each test shell. A Ram Air Decelerator RAD has been investigated as a candidate replacement for the current parachute recovery system. Tests have included proof-of-concept tests on a truck towing rig, non-spinning airdrop tests, spin tests in a high altitude chamber and artillery fired projectile tests. Although testing has to be terminated before the program could be completed, significant strides were made in RAD design for this harsh environment. Possible design improvements were identified for future testing should the program be revived.