Course Overview/Orbital Mechanics - Dave Akin's Web Site
Course Overview/Orbital Mechanics - Dave Akin's Web Site
Course Overview/Orbital Mechanics - Dave Akin's Web Site
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What About Airplanes?<br />
• For an aircra in level flight,<br />
• Energy = force x distance, so<br />
Total Energy<br />
kg<br />
• For an airliner (L/D=25) to equal orbital energy,<br />
d=81,000 km (2 roundtrips NY-Sydney)<br />
U N I V E R S I T Y O F<br />
MARYLAND<br />
Tuesday, January 31, 2012<br />
Weight<br />
Thrust<br />
= thrust × distance<br />
Lift mg<br />
= , or<br />
Drag T<br />
mass<br />
5<br />
= L<br />
D<br />
= Td<br />
m<br />
= gd<br />
L/D<br />
<strong>Course</strong> <strong>Overview</strong>; <strong>Orbital</strong> <strong>Mechanics</strong><br />
ENAE 791 - Launch and Entry Vehicle Design
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