Rocket file · LV-333
Lambda 4S
Lambda 4S is an expendable launch vehicle built by Institute of Space and Astronautical Science. It stands 16.5 m tall, lifts 26 kg to low Earth orbit, first flew on 26 September 1966. It has flown 5 times with 1 successes, a success rate of 20.0%. 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 Lambda 4S
The Lambda was an experimental Japanese expendable carrier rocket
Upcoming flights
Manifest
Lambda 4S is retired, and no flight is filed.
All upcoming launchesLambda 4S 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.


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Common questions
- How many times has Lambda 4S flown?
- 5 times, with 1 successes and 4 failures.
- What is Lambda 4S's success rate?
- 20.0%. That's 1 successful flights out of 5 attempts.
- How much can Lambda 4S lift to orbit?
- Launch Library 2 lists Lambda 4S at 26 kg to low Earth orbit.
- Is Lambda 4S reusable?
- No. Launch Library 2 lists Lambda 4S as expendable, so no stage is recovered to fly again.
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