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Space Propulsion - IAP/TU Wien

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<strong>Space</strong> <strong>Propulsion</strong><br />

The staging principle<br />

R = /<br />

j<br />

( mi<br />

m<br />

f<br />

) j<br />

initial / final mass ratio<br />

of j th stage<br />

ΔV<br />

ΔV<br />

....<br />

1<br />

ΔV<br />

2<br />

n<br />

=<br />

=<br />

=<br />

I<br />

I<br />

I<br />

ΔV = I<br />

sp<br />

sp<br />

sp<br />

sp<br />

ln R<br />

1<br />

ln R<br />

ln R<br />

2<br />

n<br />

ln( R . R2...<br />

R<br />

velocity gains of<br />

individual stages<br />

1 n<br />

)<br />

total velocity gain<br />

(of final stage)

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