Friday, June 28, 2019

Low cost fuel delivery to low earth orbit

The aerospace company founded by Paul Allen, Stratolaunch, is closing operations according to a report by Reuters that cited anonymous sources. The company will cease its efforts to challenge traditional aerospace companies in a new “space race,” four people familiar with the matter told the wire service.
I still think this will live. The idea is low orbit delivery of small packages.  Orbital, light weight bots orbit by and latch on.The strato launcher can slightly adjust fly by times, lowering the cost of inter orbital latch fuel.  Aggregating orbital fuel depots for longer flights makes a lot of sense. Simple packages to get into low earth.

We launch one larger single robot, multi armed, say two or three.  All it does it grab modular fuel tanks, carry them to meeting pointsand connect them to longer range expeditions. This seems a simple task  with near field, close uip connecting and reconnecting using standard connections.



Make it mostly solar powered, staying attached to one of the tanks for rocket power. The larger robot needs maintenance once every few years, and visits the space station.  Simple, easy to assemble inter planetary trips, especially to moon and points in between.

By early 2013, Orbital ATK was under contract to develop the Pegasus II for the Stratolaunch space vehicle launch component: The Pegasus II was expected to be able to deliver up to 6,100 kilograms (13,500 lb) to low Earth orbit.[33]
Make is simple. Left 10,000 lb of dual fuel tanks and rocket engine into low orbit.  The inter orbital bot drops bu to grab the inert package and aggregate it up its mates for a lunar ride.   Make a simple erector system in orbit. So, for a  hundred million dollar in variable fuel costs we could boost a huge package to the moon. Automated assembly of fuel and rocket stack.

A million dollars to fly this tin gets 5-10 million in fuel into orbit with rocket. If you are going to the moon or mars, this is the better method for fuel, deliberate, simple, mechanical, testable, modular, automated.

A single, inegrated dual tank modular fuel system. It come in one package, loads under the strato and can gt itself to low orbit, with half the fuel left for lunar trips. Leave it in high earth orbit, and it can be maintained and refueled with human management. Drop the empty weight cots to five million.

No comments: