Thor Delta E1
USA Wikipedia 
Built & Operated By
McDonnell Douglas
Commercial
Family
Thor
variant Delta E1
Maiden Flight
1 JUL 1966
About
American orbital launch vehicle family with Thor first stage and a delta second stage.
Vehicle Specifications
Height
28 m
Diameter
2.44 m
Launch Mass
68 T
Thrust
1,450 kN
Stages
4
Configuration
Expendable
Launch Record
Total Launches
17
Successful
16
Failed
1
Consecutive
1
Performance
To LEO
540 kg
To GTO
150 kg