22 ms·
The short answer is that Mach 5 may be only a fifth of Mach 25, but since the rocket equation is logarithmic, this speed gain actually matters a lot. Just enou
by grondilu 12y ago
The short answer is that Mach 5 may be only a fifth of Mach 25, but since the rocket equation is logarithmic, this speed gain actually matters a lot. Just enough to go to orbit in a single stage, anyway. According to ReactionEngines calculus, that is.