The North American Aviation AGM-28 Hound Dog was a supersonic, turbojet-propelled, air-launched cruise missile developed in 1959 for the United States Air Force.

https://en.m.wikipedia.org/wiki/AGM-28_Hound_Dog

Hound Dog length = 42 ft

Has all features of a PLANE.

Did Hound Dog carry a conventional warhead?

Are there other cruise missiles of similar size, 40-50 ft in length?