Space Propulsion - IAP/TU Wien
Space Propulsion - IAP/TU Wien
Space Propulsion - IAP/TU Wien
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Space</strong> <strong>Propulsion</strong><br />
The staging principle<br />
when the rocket motors of all stages have the same specific impulse I sp ,<br />
the velocity difference of the final stage with respect to the initial velocity is<br />
ΔV = I<br />
sp<br />
ln( R . R2...<br />
R<br />
1 n<br />
)<br />
when the mass ratios of all stages are identical (R j = R)<br />
ΔV<br />
=<br />
I<br />
sp<br />
n<br />
ln( R ) =<br />
n.<br />
I<br />
sp<br />
. ln R