All Questions
Tagged with design-alternativerockets
28 questions
0votes
0answers
78views
Misting/Fogging Nozzles as Rocket Injectors
Misting and Fogging Nozzles are nozzles often used in irrigation and cooling. They basically use high pressure to break the liquid into tiny droplets achieving really great atomization. I think these ...
-1votes
1answer
93views
Air-Augmentation on a VTO&L super heavy lift
I'm working on a basic design for an Air-Augmented first stage, which boosts the second, expendable, stage from a near-orbit, to allow for deorbit of the second stage. Essentially it's an SSTO that ...
- 1,195
3votes
2answers
546views
Can propellant tanks in a pressure-feed rocket be pressurized by burning the propellant inside those same tanks? Recipe for Ka-BOOM?
Pressure-fed liquid fuel rocket engines use pressurized propellant tanks to deliver propellant to the combustion chamber, rather than pumps. This eliminates the mass, cost and complexity of the gas ...
- 33k
3votes
2answers
420views
Could a Robert Goddard style motor mount be used for powered landing of SLS solid boosters?
The thought of pairing SLS solid boosters on just about anything one wants into orbit led to the thought of recovering them on barges at sea. We all remember Robert Goddard's top mounted rocket engine ...
- 1,104
0votes
2answers
1kviews
The costs of a single SLS solid fuel rocket booster
Why didn’t Nasa cluster four solid fuel shuttle boosters around an Atlas V booster. The thrust would be substantially more than that of the SLS, with no fueling problem on the launch pad. It would be ...
-1votes
1answer
94views
Could Spin Solve Needs for a Hot Water / Steam Rocket?
Instead of the old concept of nuclear thermal steam rocket, could we use spin in a pill shaped rocket to provide structural integrity, flight stability, energy storage, artificial gravity, and ...
2votes
0answers
165views
How do different stages attach to each other?
I started learning about rockets recently, and while searching for information, I found some ways that different stages separate, but I wandered if it was possible that they could reattach to a ...
- 153
1vote
1answer
253views
Would ejecting propellant close to light speed result a '"dream engine"?
"Dream engine" I assume as pictured in the old science fiction: a single stage rocket that can take off from the Earth and then freely travel at least over Solar system, landing multiple ...
- 2,089
0votes
1answer
248views
Why aren't clusters of F-15 or SR-71 engines used for a boost stage for rockets? [duplicate]
A cluster of say 8 F-15 or SR-71 engines in my mind could make a viable first stage for a small rocket. Second they can land the stage back to the ground and if my guess is right they could go to up ...
17votes
6answers
12kviews
Why doesn’t NASA build its rockets using graphene?
Graphene would be a great material to build a rocket out of. Graphene is extremely thin. One single atom thin layer of graphene can withstand 15 000 000 pascal . A square meter of this material only ...
- 6,933
1vote
1answer
399views
Using Chimborazo as a rocket launching platform
Please consider this. Chimborazo is a sleeping volcano at 01°28′09″ S 78°49′03″ W. Its peak is 6263 metres above the sea level and because it is very near of the equator, the peak is more than 2 ...
- 13
7votes
2answers
869views
Are In-Flight Electrically Heated Steam Rockets Possible?
I wonder if a rocket that uses electricity from internal batteries to heat water in its tanks to high pressure would be able to use that pressure to take off. Is it possible? I've researched here and ...
4votes
1answer
522views
Can the cryogenic expansion of liquid oxygen and liquid hydrogen be used to pump a rocket engine?
A common fuel amongst rockets is that of the combination of cryogenic liquid hydrogen and liquid oxygen. I looked at the design of a simple rocket using this cocktail that is the propellant and found ...
- 575
19votes
9answers
5kviews
Would it be practical to catch a rocket's exhaust to reuse it as fuel?
It's been some days that i think that would it be possible to make a ship that looks like this? The idea is to catch the fuel as you go. Would this make any sense or the thrust would be canceled by ...
3votes
1answer
525views
Conversion of heat into electricity in rocket nozzles
Can we use advanced thermoelectric materials to reduce the temperature of nozzles by converting heat energy to electric energy and reducing the strain on the nozzle material and the coolant while ...
- 69
