S.1 Spacecraft Propulsion Systems Chapter 1: Introduction to ...
S.1 Spacecraft Propulsion Systems Chapter 1: Introduction to ...
S.1 Spacecraft Propulsion Systems Chapter 1: Introduction to ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
S.5 Jet <strong>Propulsion</strong> System<br />
- 11-<br />
These systems are based on jet propulsion devices that produce thrust by ejecting<br />
s<strong>to</strong>red matter, called the propellant.<br />
The main features of jet propulsion are:<br />
Rocket launch<br />
Launch <strong>Propulsion</strong> for launching rockets with the following<br />
characteristics:<br />
- high velocity increment capability (7 - 11.5 km/s)<br />
- very high thrust levels (ratio thrust/launch vehicle<br />
weight: >1.3 )<br />
- low fraction of take-off mass of launch vehicle for<br />
payload mass (1 - 5%) of the launching vehicle<br />
- powerful chemical rockets