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Kilometre per second
(Redirected from Km/s)
kilometre per second is an SI derived unit of both speed (scalar) and velocity (vector), signified by the symbol km/s or km s-1. It is equal to 1,000 m/s.
1 km/s is about the top speed of a sub-orbital spacecraft.
A typical value for the specific impulse of current rockets is 4.5 km/s.
See also
- escape velocity
- delta-v budget.
- Hohmann transfer orbit for some examples of orbital speeds
Last updated: 02-26-2005 04:35:44