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L4

Rocket file · LV-333

Lambda 4S

Institute of Space and Astronautical Science · RETIRED

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

ON FILE
Height16.5 m
Diameter0.7 m
Payload to LEO26 kg
Payload to GTONOT ON FILE
Maiden flight26 September 1966
ReusableNo, expendable
Launch costNOT ON FILE
StatusRETIRED

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

ON RECORD
Total flights5
Successful1
Failed4
Success rate20.0%
Landing attempts0
Landing successN/A
Scheduled0
Variant4S

About Lambda 4S

The Lambda was an experimental Japanese expendable carrier rocket

Upcoming flights

Manifest

EMPTY

Lambda 4S is retired, and no flight is filed.

All upcoming launches

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.

Lambda Rocket Launcher
Lambda Rocket LauncherMomotarou2012 · CC BY-SA 3.0Wikimedia Commons ↗
NMNS Launcher 01
NMNS Launcher 01Asacyan · CC BY-SA 3.0Wikimedia Commons ↗
Lambda 4s launch
Lambda 4s launchRlandmann · CC BY-SA 3.0Wikimedia Commons ↗

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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.