Statistics – Applications
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sbsp.work..391j&link_type=abstract
In NASA. Langley Research Center, Second Beamed Space-Power Workshop p 391-396 (SEE N90-10140 01-20)
Statistics
Applications
Laser Power Beaming, Laser Propulsion, Lunar Bases, Nuclear Electric Propulsion, Orbit Transfer Vehicles, Space Transportation, Cargo, Comparison, Laser Applications, Lasers, Space Commercialization
Scientific paper
Laser propulsion can reduce fuel by 57 t to 105 t over chemical propulsion for a 144 t Lunar base, with no significant increase in trip time. Laser propulsion reduces trip time by a factor of 40 to 120 over nuclear electric propulsion and time in radiation belts by a factor of 100 to 1700. Either solar or nuclear driven laser diode arrays could produce multimegawatt beams, typically 3,700 t for a 235 MW laser system. Laser diode arrays have high payoff due to short wavelength (850 nm) and high diode efficiency (70 percent). A dry laser OTV of 8790 kg and 60 percent efficiency can transport a 144 t lunar base. Laser propulsion could carry both personnel and cargo safely to the lunar base.
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