May 202013
An illustration of Grumman’s 619 Space Shuttle – the final competitor for the competition that North American Rockwell won – lifting off. This design from 1972 was laid out pretty much as the final Space Transportation System was, but with some notable differences:
1) Stabilizing fins on the external tank
2) A “humped” back
3) four turbojet engines could be stored in the rear of the cargo bay, used for landing range extension, go-around capability and self-ferrying
4) Smaller OMS pods
5) Separate reaction control pods on the wingtips