|
Size: 96
Comment:
|
Size: 448
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| #format jsmath | |
| Line 3: | Line 4: |
| Launch loops can launch to escape velocity, or the | Launch loops can launch vehicles as fast as escape velocity for "kinetic energy cost", without the expense of large rocket engines and fuel and fuel tanks. Escape velocity at 80 km altitude ( $ r_{launch} =$ 6458 km equatorial radius) is $$ v_{escape} = \sqrt{ 2 * \mu_0 / r_{launch} } = $$ , where $$ \mu_0 $$ is the Earth's standard gravitational parameter, 398600.4418 km^3^/s^2^. |
HEEO, High Eccentricity Earth Orbit
Launch loops can launch vehicles as fast as escape velocity for "kinetic energy cost", without the expense of large rocket engines and fuel and fuel tanks. Escape velocity at 80 km altitude ( r_{launch} = 6458 km equatorial radius) is
v_{escape} = \sqrt{ 2 * \mu_0 / r_{launch} } =
, where \mu_0
is the Earth's standard gravitational parameter, 398600.4418 km3/s2.