Space Travel - Revision history

Marcin: /* Energetics */

2022-10-06T15:59:24Z

Energetics

← Older revision		Revision as of 15:59, 6 October 2022
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	=Energetics=		=Energetics=
	One of the most important points for space travel is energeitics - assuming reusable rockets are available in the public domain. How much fuel does a Falcon 9 Heavy take? 75k gallons. [https://spaceflightnow.com/falcon9/003/120301wdr/#:~:text=The%20Falcon%209%20rocket's%20first,went%20into%20the%20second%20stage.]. How long would it take to generate that amount of fuel from renewable energy in a village? Take a [[Dunbar]] village of 200 acres with only 2 acres in fuel crop: photovoltaics + 400 kW wind turbine. Each day produces an equivalent of 200 gallons of hydrogen. One year of energy generation is sufficient to go to space. Not bad - meaning that even a modern village can afford to have a space program. The cost of 75k gallons of fuel is only $150k, meaning that a trip to the Space Station could cost only $500k in fuel at current fuel prices - assuming open source, modular, lifetime design technology. This is about 100x cheaper than the current $1.8B contract with Space X for a dozen flights to the Space Station. This is a baseline, and it would require significant development to realize, probably		One of the most important points for space travel is energeitics - assuming reusable rockets are available in the public domain. How much fuel does a Falcon 9 Heavy take? 75k gallons. [https://spaceflightnow.com/falcon9/003/120301wdr/#:~:text=The%20Falcon%209%20rocket's%20first,went%20into%20the%20second%20stage.]. How long would it take to generate that amount of fuel from renewable energy in a village? Take a [[Dunbar]] village of 200 acres with only 2 acres in fuel crop: photovoltaics + 400 kW wind turbine. Each day produces an equivalent of 200 gallons of hydrogen. One year of energy generation is sufficient to go to space. Not bad - meaning that even a modern village can afford to have a space program. The cost of 75k gallons of fuel is only $150k, meaning that a trip to the Space Station could cost only $500k in fuel at current fuel prices - assuming open source, modular, lifetime design technology. This is about 100x cheaper than the current $1.8B contract with Space X for a dozen flights to the Space Station. This is a baseline, and it would require significant development to realize, probably on the order of $1B R&D costs, depending on availability of open source prior art.

	=Development Costs=		=Development Costs=

Marcin: /* Energetics */

2022-10-06T15:58:36Z

Energetics

← Older revision		Revision as of 15:58, 6 October 2022
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	=Energetics=		=Energetics=
	One of the most important points for space travel is energeitics - assuming reusable rockets are available in the public domain. How much fuel does a Falcon 9 Heavy take? 75k gallons. [https://spaceflightnow.com/falcon9/003/120301wdr/#:~:text=The%20Falcon%209%20rocket's%20first,went%20into%20the%20second%20stage.]. How long would it take to generate that amount of fuel from renewable energy in a village? Take a [[Dunbar]] village of 200 acres with only 2 acres in fuel crop: photovoltaics + 400 kW wind turbine. Each day produces an equivalent of 200 gallons of hydrogen. One year of energy generation is sufficient to go to space. Not bad - meaning that even a modern village can afford to have a space program.		One of the most important points for space travel is energeitics - assuming reusable rockets are available in the public domain. How much fuel does a Falcon 9 Heavy take? 75k gallons. [https://spaceflightnow.com/falcon9/003/120301wdr/#:~:text=The%20Falcon%209%20rocket's%20first,went%20into%20the%20second%20stage.]. How long would it take to generate that amount of fuel from renewable energy in a village? Take a [[Dunbar]] village of 200 acres with only 2 acres in fuel crop: photovoltaics + 400 kW wind turbine. Each day produces an equivalent of 200 gallons of hydrogen. One year of energy generation is sufficient to go to space. Not bad - meaning that even a modern village can afford to have a space program. The cost of 75k gallons of fuel is only $150k, meaning that a trip to the Space Station could cost only $500k in fuel at current fuel prices - assuming open source, modular, lifetime design technology. This is about 100x cheaper than the current $1.8B contract with Space X for a dozen flights to the Space Station. This is a baseline, and it would require significant development to realize, probably

			=Development Costs=
			*$90M for Space X's first rocket, and $300M for Falcon Heavy. [https://www.quora.com/How-much-money-did-SpaceX-invest-in-R-D-for-F1-F9-and-FH-and-how-much-is-estimated-to-be-invested-in-R-D-for-BFR]. At least 10x lower cost than NASA.

	=Companies of Intrest=		=Companies of Intrest=

Marcin at 15:51, 6 October 2022

2022-10-06T15:51:46Z

← Older revision		Revision as of 15:51, 6 October 2022
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			=Energetics=
			One of the most important points for space travel is energeitics - assuming reusable rockets are available in the public domain. How much fuel does a Falcon 9 Heavy take? 75k gallons. [https://spaceflightnow.com/falcon9/003/120301wdr/#:~:text=The%20Falcon%209%20rocket's%20first,went%20into%20the%20second%20stage.]. How long would it take to generate that amount of fuel from renewable energy in a village? Take a [[Dunbar]] village of 200 acres with only 2 acres in fuel crop: photovoltaics + 400 kW wind turbine. Each day produces an equivalent of 200 gallons of hydrogen. One year of energy generation is sufficient to go to space. Not bad - meaning that even a modern village can afford to have a space program.

	=Companies of Intrest=		=Companies of Intrest=
	==SpaceX==		==SpaceX==

Eric: Added some more information

2019-09-29T22:00:01Z

Added some more information

← Older revision		Revision as of 22:00, 29 September 2019
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	https://www.spacex.com/		=Companies of Intrest=
			==SpaceX==
			*Known for making vertical launch systems reusable and far cheaper than the competition by using retrorockets for landing the boosters, and catching the aerodynamic fearings in large nets
			*[https://www.spacex.com/ Their Website]

			==Copenhagen Suborbitals==
			*A hobbyiest group attempting human spaceflight
			*[[User:Eric]] speaking here, on my personal, non business youtube account (i think, i'll double check just in case) i asked and they said they wanted to be open source, but had to not be due to the risk of missile development by nefarious groups
			*[https://copenhagensuborbitals.com/ Their Website]

			==Rocket Lab==
			*A company who makes the [[Electron Launch Vehicle]], which is one of, if not the, smallest orbital launch platforms
			*This is useful, as many payloads, such as [[Cubesats]] need to get to orbit, but do not need a large launch payload overall
			*Thus the [[Electron Launch Vehicle]] saves money for groups looking to launch small payloadss, and lowers the barriers to entry into the feild
			*[https://www.rocketlabusa.com/ Their Website]

			==Bigelow Aerospace==
			*A group specializing in [[Inflatable Space Habitats]], which allow for large space habitats with relitively small launch volumes
			*[https://bigelowaerospace.com/ Their Website]

			==Reaction Engines Limited==
			*A group specializing in combined cycle, precooled hypersonic engines
			*Their main development is [[Skylon]], a [[SSTO]] [[HTOL]] [[Spaceplane]]
			*Skylon is an ofshoot of the [https://en.wikipedia.org/wiki/British_Aerospace_HOTOL British Aerospace HOTOL] Program
			*If successful, this will allow for heavily reusable, and safe delivery of cargo, and human payloads to orbit, on a reliable basis
			*Also the horizontal takeoff and landing is more familiar to the average person, and thus may be more approachable to the average person than vertical launch solutions

			==Quicklaunch==
			*This company has been put on hold, mostly due to spaceX reducing its place in the market, but it still may have a place
			*This is a company that proposed a [[SpaceGun]] utilising a [[Light Gas Gun]] based of hydrogen as the light gas being pushed, and natural gas for the explosive push
			*it would consist of a 1.1 km long pipe submerged in a body of water at an angle. It would accelerate payloads to around 6km/s. A small booster would be used for circularizing the orbit, but price would be dramatically reduced
			*This would not be human rated, but it could be very beneficial for resupply and/or fuel depot refueling
			*This would also have a rather fast relaunch time as all that is needed is the insertion of a new payload, and gas repressurization
			*Barrel wear is one concern
			*Some groups propose the use of a coilgun or railgun for a similar but electric approach, which especially makes sense in enviroments with lots of sunlight (for electricity generation), and low temperature + air pressure. Earth's moon is one such place
			*[https://en.wikipedia.org/wiki/Quicklaunch The Wikipedia Page on Quicklaunch]

			=See Also=
			*[[Open Source Spacecraft Construction Set]]

			=Useful Links=
			*
			*[https://www.reactionengines.co.uk/ Their Website]

Marcin: Created page with "https://www.spacex.com/"

2019-09-29T20:51:34Z

Created page with "https://www.spacex.com/"

New page

https://www.spacex.com/