Retired· Institute of Space and Astronautical Science

Lambda 4S

The Lambda was an experimental Japanese expendable carrier rocket

Follow Lambda 4S in the app

Launches

since Sep 1966

Success rate

20%

1 of 5 successful

In a row

successful launches

Launches per Year

Full year2026 so far

Specifications

Height: 16.5 m
Diameter: 0.74 m
Liftoff mass: 9 t
To low Earth orbit: 26 kg
Stages: 4
First flight: September 26, 1966
Manufacturer: Institute of Space and Astronautical Science

Next Launches

No Upcoming Launches

No launch is scheduled for this vehicle right now.

Space Launch Now for iOS and Android

Follow Lambda 4S and get a notification before each of its launches.

See what's in the app

Scan to open on your phone

[data-page-skeleton]{display:none}body{display:flex;flex-direction:column}body>footer{order:2}body>main{padding-bottom:0}body:has(>div[hidden][id^="S:"]>[data-data-unavailable]) header[data-site-header]{background:var(--canvas);border-color:var(--rule);color:var(--ink)}body:has(>div[hidden][id^="S:"]>[data-data-unavailable]) [data-header-scrim]{display:none}body>div[hidden][id^="S:"]>[data-data-unavailable]{max-width:calc(var(--container-content) + 2 * var(--s-5));padding:var(--s-9) var(--s-5) 0}body>div[hidden][id^="S:"]:last-of-type{padding-bottom:var(--s-9)}body:has(>div[id^="S:"] [data-app-promo])>div[hidden][id^="S:"]:last-of-type{padding-bottom:0}@layer base{body>div[hidden][id^="S:"]{display:block!important;order:1}}