22 Jul '09 22:34

This new plasma rocket called Vasimr may allow trips to mars in a little over a month if they can power it up to 200 Mw levels, now ticking in at 50 Kw. I did the math, S=(AT^2)/s which solving for A (acceleration) is A=2S/T^2, setting the distance at 160 million Km, a mid level distance, from min of about 56 million Km to a max of roughly 300 million klicks, I did the calcs where you accelerate for half the distance, then turn around and decel for half which gets you to Mars with zero velocity relative to Mars.

According to my math, that clocks out to an outrageously low 5 milliG.

(.005G) Anyone want to confirm that? Seems like a very low G level to get to mars in 40 days. So it accelerates full bore for 80 million klicks and then the rocket motor faces Mars and decel's for 80 million klicks, each half taking about 20 days. Sound right? 5 MILLI G's?

According to my math, that clocks out to an outrageously low 5 milliG.

(.005G) Anyone want to confirm that? Seems like a very low G level to get to mars in 40 days. So it accelerates full bore for 80 million klicks and then the rocket motor faces Mars and decel's for 80 million klicks, each half taking about 20 days. Sound right? 5 MILLI G's?