"Cyclo Rotor Mono Wing Spin Launcher"

[sm0ky2]

The phase change pressure of liquid CO2 could drive these things
I know i know it sounds like we're dumping raw CO2 into the air....
But the CO2 was directly harvested so it is technically carbon neutral




And we can get it at very low cost.
Just drop a chunk of dry ice into a gatorade bottle

[sm0ky2]

Not sure the size of the tank required,
But it may also be feasible to launch using
steam

[synchro1]

Here's a 3D printed mono wing rocket.

[synchro1]

Storing rocket propellant in the Monocopter wing that glides back like a "Maple Seed" would be very cheap to launch and operate compared to the two stage piggyback style rockets. The supreme advantage would be the vacuity of high altitude for a Mach speed spin launch from the ground return fuel . After ascending by highly efficient lift copter, the centrifugal force from a high speed ground fuel source spin would send the payload and return rocket to space. 

The bulky Hydrogen tank from the Space Shuttle burned up in the atmosphere. Shaped like a "Whirligig" it could glide safely back to Earth.