| Function | Heavy suborbital launch system |
|---|---|
| Manufacturer | Orbital Sciences |
| Country of origin | United States |
| Size | |
| Stages | Four |
| Capacity | |
| Payload to 5000km S/O | |
| Mass | 3,000 kilograms (6,600 lb) |
| Launch history | |
| Status | Development |
| Launch sites | Vandenberg Kodiak |
| First stage – SR-118 | |
| Powered by | 1 Solid |
| Maximum thrust | 1,607 kilonewtons (361,000 lbf) |
| Burn time | 83 seconds |
| Propellant | Solid |
| Second stage – SR-119 | |
| Powered by | 1 Solid |
| Maximum thrust | 1,365 kilonewtons (307,000 lbf) |
| Burn time | 54 seconds |
| Propellant | Solid |
| Third stage – SR-120 | |
| Powered by | 1 Solid |
| Maximum thrust | 329 kilonewtons (74,000 lbf) |
| Burn time | 62 seconds |
| Propellant | Solid |
| Fourth stage – Super-HAPS | |
| Powered by | 12 MR-107K |
| Propellant | Hydrazine |
The Minotaur III, also known as OSP-2 Target Launch Vehicle, Peacekeeper TLV or OSP-2 TLV is an American rocket derived from the LGM-118 Peacekeeper missile. It is a member of the Minotaur family of rockets produced by Orbital Sciences Corporation, and is used for long range suborbital launches with heavy payloads.
Minotaur III rockets consist of four stages; the SR-118 first stage, SR-119 second stage and SR-120 third stage of a decommissioned Peacekeeper missile, with a Super-HAPS fourth stage, derived from the HAPS stage used on Pegasus and Minotaur I rockets. The Minotaur III is capable of launching a 3,000 kilograms (6,600 lb) payload 5,000 kilometres (3,100 mi) downrange on a suborbital trajectory.
Minotaur III launches will be conducted from Vandenberg Air Force Base and the Kodiak Launch Complex.