It works out if the 48k is a typo/thinko for 46k.Jonathan_S wrote: Thanks, even just the numbers you remembered were enough to do a text search and find it. It was in Ashes of VictoryAshes of Victory: Ch 35 wrote:"Agreed. Agreed." White Haven rubbed his chin some more. The final—or currently "final"—version of the long-range missiles could reach 96,000 gravities of acceleration, four thousand more than the ones Alice Truman had deployed at Basilisk. That gave them a powered attack range from rest of almost fifty-one light-seconds at maximum acceleration. By stepping the drives down to 48,000 g, endurance could be tripled, however, and that upped the maximum powered envelope to well over three and a half light-minutes and a terminal velocity of .83 c. That was crowding the very limits of the fire control technology available even to the Royal Manticoran Navy, however.
Also, I'm embarrassed to say my spreadsheet was disorganized enough I'd missed that I already had one higher acceleration entry. There was a quote in Echoes of Honor (When 8th fleet mousetraps the 2nd arm of the Peeps at Basilisk) about missiles with 95,000g acceleration.
Finally I'd note that the internal numbers of that quote don't quite work out. Whether you're using 9.8 m/s or 10 m/s for 1g the terminal velocity for half power is higher than 0.83c (I get 0.847c or 0.865c; assuming it has the normal 540 second burn time)
46k gee * 10 m/s/s/gee * 540 s = 248.4 e6 m/s = 0.83 c.
Of course, at an acceleration of 46k gee, it should really be reaching only 201 e6m/s (0.67 c),
but with a powered range of 69.5 e9m (3.87 lt-min).
At 48k gee, it should be reaching 206.8 e6m/s (0.69 c),
with a powered range of 72.8 e9m (4.05 lt-min).