Blue Scout II
USA Wikipedia 
Built & Operated By
Vought
Commercial · founded 1917
Family
Blue Scout
variant II
Maiden Flight
3 MAR 1961
About
The RM-90 Blue Scout II was an American sounding rocket and expendable launch system which was flown three times during 1961. It was used for two HETS test flights, and the launch of the Mercury-Scout 1 satellite for NASA. It was a member of the Scout family of rockets.
Vehicle Specifications
Height
24 m
Diameter
1.02 m
Launch Mass
16 T
Thrust
471 kN
Stages
4
Configuration
Expendable
Launch Record
Total Launches
1
Successful
0
Failed
1
Performance
To LEO
30 kg