All Questions
Tagged with advanced-propulsionpropulsion
39 questions
-4votes
2answers
118views
Idea for space propulsion [closed]
Do you think this Idea is possible? Thank you It is simillar to EmDrive. https://en.m.wikipedia.org/wiki/EmDrive
1vote
0answers
140views
What are better ways to deliver heat directly to propellant in a Thermal Rocket design for use in launch than UV such as in the Nuclear Lightbulb?
Most advanced, high-power engine concepts that I came across aren’t suited for atmospheric launch, so I got curious about what kinds of engines could launch a very heavy craft from the surface of a ...
0votes
0answers
80views
A hybrid micropropulsion system for CubeSats
I am curious about how much potential would a hybrid (electric & chemical) micropropulsion system have for CubeSats. The chosen propellant is water due to its non toxic nature, cheap cost and high ...
- 101
5votes
3answers
448views
Is the ejection of matter one way to get pushed the other way the only propulsion method we have?
I do mean propulsion (not gravity assist or the like). All the "rocket" engines I've seen (chemical, nuclear, ion, etc) seem to eject material one way to get the craft pushed the other way. ...
- 953
5votes
2answers
240views
Using lasers to reach the Karman line
I've just seen this Anton Petrov video: New Type of Laser Levitation Could Help Us Explore the Mesosphere. It's about this new form of levitation that uses lasers to heat up the air underneath a craft,...
- 832
8votes
2answers
1kviews
Is the propulsion for the Scorpion nuclear-thermal-electric ship concept viable and credible?
Recently I've come across the proposal for the "Scorpion" spacecraft -- I originally ran across it on Project Rho (ctrl-F for it) but it looks like the article was published in the journal ...
- 9,568
1vote
1answer
129views
Is "nuclear electrothermal" a recognized term for a specific technology?
Is the term "nuclear electrothermal" recognized as referring to a specific type of propulsion technology (specifically, the nuclear thermal rocket with heat engine and arcjet afterburner)?
- 9,568
1vote
0answers
32views
Injectors Diameter and Numbers
how would you determine the diameter and the number of injectors if unlike doublets elements are used? The Data given is: Isp =286 s Chamber pressure= 25 bars Propellant pair: Fuel= Hydrazine and ...
0votes
1answer
225views
Continuous staging? [closed]
In industrial chemistry it's well known (Armagnac vs. Cognac) that continuous processes are more efficient than batch processes. In-game microtransactions have competed so favorably with just ...
- 12.4k
5votes
1answer
1kviews
Could the helical engine work?
A helical engine is originally described in this NASA Paper; see also the youtube explanation by Anton Petrov The problem may be with powering the device. The original paper uses ions in a toroid to ...
- 361
-3votes
1answer
170views
A question about the feasibility of the Casimir propulsion system [closed]
There is a connection between vacuum energy density and the Casimir effect , see : https://arxiv.org/abs/quant-ph/0204125 Another reference can be found here: https://aapt.scitation.org/doi/10.1119/...
12votes
8answers
5kviews
Is it possible to get a spacecraft into earth orbit using Linear Eddy Current Braking on an orbital runway?
The "Space Runway" [I have slightly edited this to clarify some issues that have been raised] Luke Parrish mentioned an unusual and novel space launch method to me. The idea is to get a spacecraft ...
- 365
0votes
1answer
559views
Exit pressure value for vacuum nozzle [duplicate]
What value of exit pressure should I use in the design equations for a small liquid rocket engine nozzle for 200km-500km operating conditions? Since using zero as a value is not possible or else ...
1vote
1answer
440views
Could a spacecraft be propelled by a 180 degree deflection of two charged particle beams?
I am wondering if the electrostatic deflection of two charged particle beams could create enough thrust, via the Lorentz Force, to propel a spacecraft. Please reference the picture below. This ...
user28781
2votes
1answer
197views
What could be the proprietary propellant blend that "Apollo Fusion" claims to have developed for it's hall effect thrusters?
According to the info posted on the Apollo fusion website http://apollofusion.com/ , they claim to use a propellant blend that offers " 2-3 X more impulse per mass and volume" in comparison towards ...
- 161
