well Skip,
here's a formula to help you figure out how fast you need to
travel...but this would be through water, so you'll need your submarine
for the speed run:

http://hyperphysics.phy-astr.gsu.edu...ouspe2.html#c1
Speed of Sound
This link will calculate the speed your surface boat will need to
achieve (simplified)
http://www.grc.nasa.gov/WWW/K-12/airplane/airprop.html
and this link is just some awesome pics and videos of planes breaking
yhe sound barrier:
http://hyperphysics.phy-astr.gsu.edu...soubar.html#c1

A 750 mph bayliner, that's gotta be some kind of record....
markv