|astronautix.com||Study and research areas for manned flight to and from the moon|
Members of the Research Steering Committee determined the study and research areas which would require emphasis for manned flight to and from the moon and for intermediate flight steps:
A reliable, precisely controlled, variable-thrust engine for lunar landing. A storable propellant lunar takeoff rocket. Storage of cryogenics in space (emissivity, absorptivity, etc.).