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Title: Place of solar thermal rockets in space

Technical Report ·
OSTI ID:6536738

The harnessing of sunlight for propulsive energy is a recurring theme in space propulsion, particularly for applications requiring large velocity increments, such as planetary exploration or comet rendezvous. Characteristically, it is viewed in terms of the solar sail and the solar cell, but for operations in Earth orbit these approaches are less desirable because the very low thrust leads to undesirably long maneuver times. Thrust levels several orders of magnitude higher are available with solar thermal rockets, while preserving a specific impulse advantage over chemical systems. The performance advantages, penalties, technological problems, and approaches were examined for solar thermal rockets. Its suitability in several Earth orbit missions is assessed. The peculiarities of vehicle design, the nature of the thruster and the solar concentrator are presented, and AF plans to implement the development of solar rockets are outlined.

Research Organization:
Air Force Rocket Propulsion Lab., Edwards AFB, CA (USA)
OSTI ID:
6536738
Report Number(s):
N-82-25164
Resource Relation:
Other Information: In APL The 1981 JANNAF Propulsion Meeting, Vol. 2 p 265-288 (SEE N82-25149 15-99) REFS
Country of Publication:
United States
Language:
English