Rocket file · LV-191
Proton / UR-500 K/D
Proton / UR-500 K/D is an expendable launch vehicle built by Russian Federal Space Agency (ROSCOSMOS). It stands 57.0 m tall, first flew on 10 March 1967. It has flown 39 times with 24 successes, a success rate of 61.5%. It has nothing on the Launch Library 2 schedule right now.
Specification
Vehicle spec sheet
As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.
Flight record
Reliability
About Proton
This four stage version of the Proton was originally designed to send manned circumlunar spacecraft into translunar trajectory.
Upcoming flights
Manifest
Proton is retired, and no flight is filed.
All upcoming launchesOrbitburn is a gravity lander game with 25 ships. It's free on Android, and you can play it in your browser.Get it free on Google Play
Common questions
- How many times has Proton / UR-500 K/D flown?
- 39 times, with 24 successes and 15 failures.
- What is Proton / UR-500 K/D's success rate?
- 61.5%. That's 24 successful flights out of 39 attempts.
- How much can Proton / UR-500 K/D lift to orbit?
- Launch Library 2 doesn't list a payload figure for Proton / UR-500 K/D.
- Is Proton / UR-500 K/D reusable?
- No. Launch Library 2 lists Proton / UR-500 K/D as expendable, so no stage is recovered to fly again.