On Mon, 3 Mar 2003 16:21:02 -0500 "Alec Smyth" writes: >In general, the force on a hydroplane can approximately be calculated >from the following equation: Thanks. I'll see if I can beat this into a Visual Basic program. Mike H. ________________________________________________________________ Sign Up for Juno Platinum Internet Access Today Only $9.95 per month! Visit www.juno.com