Hello everyone.
I don't know where to leave this thread, maybe it should be in suggestions, but I think SRV is used mostly by explorers.
I was curios about what thrust srv have, so I ran an experiment by jumping on srv vertically and measuring height. So the results are:
Planet gravity - 1.0G / 0.03G
Engine work time - 4s / 6s (hm...)
Height after engines cut off - 18m / 32m
Mass - 4000 kg
So, we have a linear movement with constant acceleration, where H=a*t^2 / 2, which resulsts in:
SRV vertical acceleration - 2.25 / 1.8 m/s^2
That is already interesting, for some reasons acceleration on planet with lower g is lower, while it should be much higher. Next step is also simple, ma=F-mg, F=m(a+g)
SRV engines thrust - 4900 kgf / 900 kgf
And that is... also interesting. So the force on low gravity planets is much lower, we do not use full thrust there apparently, maybe because of some safety reasons. But. If we use so little thrust - why capasitor runs so fast? Shouldn't lowering thrust by 5 times give us 5 times more engine burn time or something like that? What is the logic behind this? I couldn't find any idea like constant energy level or constant gas mass / pressure or something like that - that will explain why increase in burn time is so little.
I don't know where to leave this thread, maybe it should be in suggestions, but I think SRV is used mostly by explorers.
I was curios about what thrust srv have, so I ran an experiment by jumping on srv vertically and measuring height. So the results are:
Planet gravity - 1.0G / 0.03G
Engine work time - 4s / 6s (hm...)
Height after engines cut off - 18m / 32m
Mass - 4000 kg
So, we have a linear movement with constant acceleration, where H=a*t^2 / 2, which resulsts in:
SRV vertical acceleration - 2.25 / 1.8 m/s^2
That is already interesting, for some reasons acceleration on planet with lower g is lower, while it should be much higher. Next step is also simple, ma=F-mg, F=m(a+g)
SRV engines thrust - 4900 kgf / 900 kgf
And that is... also interesting. So the force on low gravity planets is much lower, we do not use full thrust there apparently, maybe because of some safety reasons. But. If we use so little thrust - why capasitor runs so fast? Shouldn't lowering thrust by 5 times give us 5 times more engine burn time or something like that? What is the logic behind this? I couldn't find any idea like constant energy level or constant gas mass / pressure or something like that - that will explain why increase in burn time is so little.