Henry Spencer wrote:
I wonder, though, if it actually ascends in that direction, or if that's
just a transient error -- perhaps something to do with the dynamics of
breaking the surface -- that the guidance system sorts out a second or
two later.


No, I've seen films of the launch; it comes out of the water straight,
then immediately pitches over and climbs at a steep angle;
There's a video of a launch he
https://wrc.navair-rdte.navy.mil/war...bs/trident.mpg

Pat