Right -- the difference between Newton and Einstein didn't come up before the multidrive missile, bar some character musing that time spent in space meant s/he was really a few days shy of a birthday, despite what the calendar said.Jonathan_S wrote:Bill Woods wrote:I have to go with the unreliable narrator hypothesis. Otherwise.... If a ship is moving at 0.6c (relative to something) and fires a Mk23, how fast will the missile be going at the end of its powered flight? And if its target is approaching at 0.6c, how fast will the missile be going relative to that?

(If only Weber had thought to ask you or me to preview his books, and check the numbers.)

Haha - crunching the numbers is easy compared to writing the stories.

Mostly he's helped by the fact that his hyper limits are so small that ship combat rarely involves significant fractions of c - so he can add, or remove, some range due to relative ship velocities without having to worry overmuch about accidental bumping into the speed of light

Or just cancel them? With relativistic acceleration, I was surprised at how little benefit a fourth stage adds. E.g.:Though I'm still waiting to see what he says about the top speed of the 4-drive system defense MDMs. If you apply Newtonian accelerations to those you end up with a terminal velocity, from rest, in excess of c. (540 seconds at 46,000 gees + 90 seconds at 130,000 gees = 1.194c Oops). My bet is that he'll declare missiles have a top speed, no mater what, of 0.99c.

Shooting at a target 30 e9m away,

the 2DM (46kgee) takes 6.3 min,

the 3DM (96kgee) takes 5.4 min (ballistic: 2.2 min),

the 4DM (96kgee) takes 4.6 min (ballistic: 0.2 min).

Shooting at a target 70 e9m away,

the 2DM (46kgee) takes 14.7 min (ballistic: 8.4 min),

the 3DM (46kgee) takes 10.1 min (ballistic: 0.1 min),

the 4DM (96kgee) takes 8.9 min (ballistic: 4.5 min).

Shooting at a target 150 e9m away,

the 2DM (46kgee) takes 31.6 min (ballistic: 25.3 min),

the 3DM (46kgee) takes 19.1 min (ballistic: 9.1 min),

the 4DM (46kgee) takes 16.2 min (ballistic: 1.7 min).

Definitely.Still given the choice between perfect relativistic math and a gripping yarn... I'm quite happy with the books as they are.