AGM-80 Viper was an experimental American air to surface missile based on the AGM-12C Bullpup-B but featuring a new guidance system offering fire-and-forget performance. Designed by Chrysler, Viper is reported to have used a two-axis inertial guidance system and a radio altimeter fuse. Development was cancelled in the 1970s.
- United States: The AGM-80 was cancelled before entering service.
- "AGM-80 Viper", Encyclopedia Astronautica, Astronautix.
- Guided Air to Surface Missiles (article), Vectors.