Inertial Upper Stage
| Use attributes for filter ! | |
| Manufacturers | Boeing |
|---|---|
| Total launches | 24 |
| First flight | 30 October 1982 |
| Used on | Titan 34D |
| Titan IV | |
| Derivative | Transfer Orbit Stage |
| Last flight | 14 February 2004 |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3122361 |
About Inertial Upper Stage
The Inertial Upper Stage, originally designated the Interim Upper Stage, was a two-stage solid-fueled rocket upper stage developed by Boeing for the United States Air Force beginning in 1976 for raising . . .