Talk:Simplified Aid for EVA Rescue

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I assume "delta-v" means change in velocity. In which case, shouldn't the units be ms^-2 (ie metres per second per second)?

No, it's not a change in velocity per unit time. It's the change in velocity which results, in the absence of outside forces, from the expenditure of some propellant. In this case, the Δv is that due to expending all of the propellant available in the SAFER pack. (Perhaps the best units would be "m s^-1 recharge^-1." :)