Quote:
Originally Posted by cvannrederode
According to my Ti-89, the tau factor need to make a 10^10 gram Azrael (nice round number) have 2x10^32 J of kinetic energy is 222,531
The tau factor at 0.99999999999c (eleven nines) is 223,607. So at that fraction of the speed of light, the KE of a Azrael exceeds the gravitational binding energy of a Earth-sized body.
Does anyone want to work out how long (relative to the target planet) it would take one to reach that speed?
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Do you want to include the time required to rip out the Ramjet and replace it with ^ Reactionless Thrusters?
It's already using a Cinematic ramjet to get to 0.5 c. A realistic speed limit is probably a good bit lower than that. Like magsails ramjets appear to make better brakes than accelerators.