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The SpaceX Falcon Heavy lifts 53 metric tons into LEO for $125 million
and less. It uses cross-fed elements to implement two stages similar to what I've proposed in my early External Tank Derived Heavy Lift Launch Vehicle. The next step for them is to make use of the launch capability to put up some interesting commercial systems. These include; (1) 48 launches of 10 comsats per launch for a total cost of $25 million each, to put into orbit a global wireless internet for $12.0 billion. Each satellite supports six peta-bit open optical laser channels to their nearest network neighbors in space to support a peta bit backbone. These channels feed an optical router that drives a phased array ground link that dynamically paints billions of stationary to the ground doppler corrected virtual cells across the face of the Earth to support an upgraded IEEE 803.11 wireless capability throughout the world blanketed with 480 satellites spaced 20 across 24 polar orbital planes. Supporting 50 billion channel capability the system earns $100 billion per year in basic internet, radio, television revenue and another $400 billion per year in service revenue (banking and insurance). Profits support the deployment of low cost easy to use tele-robotics and tele-presence. This allows people to work anywhere and live anywhere. Profits also support the development of a 7 element launcher with four additional parallel cross-feed stages, increasing the lift capacity to 183 metric tons. (2) A 183 metric ton solar power satellite beams 2.75 GW to Earth via IR laser beam. At $0.06 per kilowatt hour the system earns $1.45 billion per year beaming energy to hundreds of compact ground stations around the world. The cost of each launch is $200 million. The cost of the satellite is $3.66 billion. A total cost of $3.86 billion. With a useful life of 30 years, and an 8% risk free discount rate, the value of the revenue stream generated by the satellite at switch on is $16.28 billion a net value of $12.62 billion at switch on. The world generates a total of 1.7 TW of electrical power using coal fired power plants generating 19.3 billion tons of CO2 in the process, nearly half the amount created by humans. 604 satellites of the type described here are sufficient to meet these needs. So, at a flight rate of 48 per year, this takes 12.5 years to meet this need. (3) Replacing the 2.65 km diameter concentrator and 62.5 meter diameter emitter/target with a 366.7 m diameter emitter target without concentrator, a sun orbiting system is launched that uses solar powered ion engine capability (used in #2 for 30 year ACS) to fly to Jupiter, execute a gravity boost maneuver, to drop the satellite directly into the Sun. At 3.5 million km from Earth it generates 92 GW of solar energy. This system costs the same $3.86 billion to launch. A similar system in GEO receives the directed laser beam and re-directs it to receivers visible to it on Earth and in cislunar space. At $0.03 per kilowatt hour the system earns $272.3 billion per year. The pair costs $7.72 billion to put in place. Displacing the 1.7 TW of electrical power on the planet with these satellites requires a total of 19 pairs to be launched. This takes less than 1 year to meet this need. Crude oil contains 1,694 kWh of thermal energy when burned. To release this same amount energy from lasers in space, at $0.03 per kilowatt hour requires the expenditure of less than $51 per barrel equivalent. Driving electric vehicles, rather than thermal ones, the effective price drops below $25 per barrel equivalent. 30 MW to 100 MW are the power requirements of airliners. 920 to 3,066 aircraft are driven by a single satellite pair at a fraction of the cost of kerosene with no pollution. (4) Using a 53 metric ton payload on LEO 12 people can be sent to the moon in a two stage deep space ship powered by LOX/LH2 at less than $85 million each. (5) Using a 187 metric ton payload on LEO 36 people can be sent to the moon in a larger two stage deep space ship powered by LOX/LH2 at less than $20 million each. (6) Using a 53 metric ton paylod on LEO 4 people can be sent to mars in a two stage deep space ship. (7) Using a 187 metric ton payload on LEO 12 people can be sent to mars in a two stage deep space ship. |
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