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XRM-91 Blue Scout Junior

XRM-91 was the original four-stage Blue Scout Junior configuration. It combined Castor, Antares, Alcor, and Cetus solid motors, relied on fins and spin motors rather than active guidance, and flew four high-altitude research tests from 1960 through 1961.

Identity

Aliases
RM-91Journeyman BBlue Scout Junior XRM-91
Family Name
Blue Scout Junior
Full Name
XRM-91 Blue Scout Junior
Reusability
expendable
Slug
xrm-91-blue-scout-junior
Status
retired
Type
rocket
Variant Name
XRM-91

Details

Description
XRM-91 was the original four-stage Blue Scout Junior configuration. It combined Castor, Antares, Alcor, and Cetus solid motors, relied on fins and spin motors rather than active guidance, and flew four high-altitude research tests from 1960 through 1961.
Diameter M
0.79
First Flight Year
1,960
Height M
12.34
Last Flight Year
1,961
Liftoff Mass Kg
6,300
Operator
Parent Vehicle Family
Stages Count
4

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Creation Time
July 18, 2026 at 03:33:32 UTC
Updated Time
July 18, 2026 at 03:33:32 UTC