- Family: Lambda
- Length: 16.5 m
- Diameter: 0.74 m
- Launch Mass: 9 T
- Low Earth Orbit Capacity: 26 kg
The Lambda 4S was manufactured by Institute of Space and Astronautical Science with the first launch on 1966-09-26. Lambda 4S has 1 successful launches and 4 failed launches with a total of 5 launches. The Lambda was an experimental Japanese expendable carrier rocket
