The AGM-28 was a long range, stand-off air-to-ground strategic missile designed for use with the Boeing B-52 Stratofortress. The missile was originally designated the GAM-77, but that was later changed to AGM-28. North American Aviation was awarded the development contract in August 1957 and the production contract was issued on 16 October 1958. The first test launch of a Hound Dog from a B-52 came in April 1959 and the first production version was accepted by the Air Force in December of that year. The first launch of an AGM-28 by the Strategic Air Command came in February 1960 and the first airborne alert with it took place in early 1962. Only 600 Hound Dog missiles were produced. The last example was removed from USAF inventory in June 1978.

The missile was designed for carriage under the wings of the B-52, one on each wing between the fuselage and the inner engine nacelles. A unique feature of the AGM-28 was that its underslung turbojet engines could be run while the missile was still attached to the carrier aircraft, augmenting the thrust of the mothership at take-off or for high-speed cruise.

This AGM-28A, S/N 20796, was used at Chanute Technical Training Center for training USAF maintenance and support personnel. It is on loan to Octave Chanute Aerospace Museum from the National Museum of the United States Airforce.