- Family: Minotaur
- Length: 23.9 m
- Diameter: 2.35 m
- Launch Mass: 86 T
- Low Earth Orbit Capacity: 1750 kg
The Minotaur IV HAPS was manufactured by Orbital Sciences Corporation with the first launch on 2010-11-20. Minotaur IV HAPS has 1 successful launches and 0 failed launches with a total of 1 launches. The Minotaur IV HAPS launch system is derived from the Peacekeeper ICBM. The first three stages are taken directly from decommissioned Peacekeeper missiles. A fourth stage, the Orion-38, is taken from the Pegasus family of air-launched rockets. A fifth stage, consisting of a hydrazine-powered motor called HAPS, increases orbital insertion accuracy and allows additional orbital maneuvering.