Questions tagged [rocket]

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1answer
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What type of control law is used in “Reaction Control System” of Apollo Lunar Module or Space Shuttle?

Reaction Control Systems (RCS) on these vehicles are implemented by using small rocket thrusters. For me it looks like these thrusters work in some kind of "pulse" mode. And I can't understand - do ...
2
votes
2answers
172 views

Are LiPo really 100 times more energy dense than model rockets?

Lately I've been interested in comparing the energy density of model rocket engines to lithium polymer batteries (attached to motors and propellers) for propelling things upwards. To get a feel for ...
2
votes
0answers
68 views

How could I make an all electric model rocket? [closed]

What I've been noodling on is how to convert that energy into thrust to create an all electric model rocket. I got as far as realizing that dumping electricity from a battery into a capacitor might ...