Juno II Launch Vehicle
Juno II was a four-stage NASA launch vehicle that paired a stretched Jupiter intermediate-range ballistic-missile first stage with the clustered Sergeant-derived upper stages developed for Jupiter-C and Juno I. Ten launches from 1958 to 1961 supported lunar probes and Explorer satellites; Pioneer 4, Explorer 7, Explorer 8, and Explorer 11 achieved their principal launch objectives.
Identity
- Aliases
- Juno 2Juno-IIJupiter Juno II
- Family Name
- Juno II
- Full Name
- Juno II Launch Vehicle
- Reusability
- expendable
- Slug
- juno-ii-launch-vehicle
- Status
- retired
- Type
- rocket
Details
- Description
- Juno II was a four-stage NASA launch vehicle that paired a stretched Jupiter intermediate-range ballistic-missile first stage with the clustered Sergeant-derived upper stages developed for Jupiter-C and Juno I. Ten launches from 1958 to 1961 supported lunar probes and Explorer satellites; Pioneer 4, Explorer 7, Explorer 8, and Explorer 11 achieved their principal launch objectives.
- Diameter M
- 2.67
- Engines
- Count
- 1
- Name
- Rocketdyne S-3D
- Placement
- core
- Count
- 11
- Name
- Scaled-down Sergeant
- Placement
- upper
- Count
- 3
- Name
- Scaled-down Sergeant
- Placement
- upper
- Count
- 1
- Name
- Scaled-down Sergeant
- Placement
- upper
- First Flight Year
- 1,958
- Height M
- 24
- Last Flight Year
- 1,961
- Liftoff Mass Kg
- 50,122
- Operator Id
- vh76vnx3yy1vy23j7zc3wk80wx7nhx5f
- Parent Vehicle Family Id
- nd7ggrh0bfq0g2zfspesmamfmh8ae9y7
- Payload Capacity Kg
- Leo
- 42
- Stages Count
- 4
Links
Assets & Meta
- Creation Time
- 7/13/2026, 12:48:45 PM
- Updated Time
- 7/13/2026, 12:48:45 PM