Rocket file · LV-233
SM-65B Atlas
SM-65B Atlas is an expendable launch vehicle built by Convair. It stands 31.4 m tall, lifts 68 kg to low Earth orbit, first flew on 19 July 1958. It has flown 1 times with 1 successes, a success rate of 100.0%. 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 Atlas B
The Convair SM-65B Atlas, or Atlas B, also designated X-12 was a prototype of the Atlas missile. First flown on 19 July 1958, the Atlas B was the first version of the Atlas rocket to use the stage and a half design with an operational sustainer engine and jettisonable rocket booster section. Unlike later Atlas models, the Atlas B used explosive bolts to jettison the booster section.
Upcoming flights
Manifest
Atlas B is retired, and no flight is filed.
All upcoming launchesSM-65B Atlas in the archive
From NASA's public image library and Wikimedia Commons. Each photo shows the credit its licence asks for and links back to where it came from.



Orbitburn 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 SM-65B Atlas flown?
- 1 times, with 1 successes and 0 failures.
- What is SM-65B Atlas's success rate?
- 100.0%. That's 1 successful flights out of 1 attempts.
- How much can SM-65B Atlas lift to orbit?
- Launch Library 2 lists SM-65B Atlas at 68 kg to low Earth orbit.
- Is SM-65B Atlas reusable?
- No. Launch Library 2 lists SM-65B Atlas as expendable, so no stage is recovered to fly again.
COMMS UPLINK
One email a week at most. It lists what's launching, from where, at what time (UTC) and what it's carrying, and ends with a line about Orbitburn, our game.
We never sell the list. It comes from EveryLaunch, published by Cadenic Studios. Every email has an unsubscribe link, so you can stop it any time.