Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

Electrical Propulsion Energy´ Re-Boost of tether drives energy requirement´ ScenarioD 10:1 payload:tether mass => 50,000 kg tether facilityD 2460 m/s payload ∆v => 246 m/s reboost ∆vD Post-boost perigee speed = 9250 m/sD Kinetic energy = ? 5x10 4 (9496 2 - 9250 2 ) = 115,288 MJD Reboost time = 30 days = 2,592,000 secD Average reboost mechanical power = 44,478 WD Fraction of time reboosting = 20%D Active reboost mechanical power = 222,392 WD Efficiency = 25 uN/W @ 9250 m/s = 23% (electric->kinetic)´ RobÍs number for thrust-while spin, 100% of the time < 2200 km altD Active electric reboost power input = 962 kW21