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Questions tagged [burn]

Questions about the combustion of a material and the material is consumed by the fire .

4
votes
2answers
679 views

Longest continuous burning chemical rocket engine?

I'm curious as to what rocket engine in a launched rocket burned the longest in a continuous fashion. I'm not interested in testing burns or inter-planetary engines which are designed for low-thrust ...
4
votes
1answer
382 views

Burn time to raise to an elliptical orbit from an elliptical orbit

I am trying to simulate orbit raising like India's MOM mission did in order to get escape velocity. But I can't determine the best/most-suitable point/time on the current orbit where the probe should ...
7
votes
1answer
532 views

Ways to obtain thrust curves of different grain geometries

Different grain geometries in solid-fuel rockets produce various thrust curves: I can imagine it's not too difficult to obtain a thrust curve of a specific grain geometry with a measurement while ...
30
votes
3answers
4k views

Why do the exhaust flames from cryogenic stage engines appear to be separated from the nozzle?

Why do the exhaust flames from cryogenic stage engines appear to be separated from the nozzle?