Jim - I never finished the project - but after we purchased our 27' sailboat I received a GPS for an anniversary gift. Being "waterproof", I strapped the GPS to the mast to see how fast I went. Of few days I tried it in the ocean I hit 18 knots. I feel I have been faster, but it just takes the right combination of wind and lack of waves. A protected bay would be ideal for speed trials. It is stated that a 16' Hobie with no sails - just the mast - will do 8 knots in a 25 knot wind. David V. Fansler Network Administrator TriPath Imaging, Inc. (formerly AutoCyte, Inc.) Dfansler@autocyte.com 336-222-9707 Ext. 261 Now Showing! www.dv-fansler.com Last updated March 31, 2000 Ann's Cancer, David's Observatory, Trip to Disney -----Original Message----- From: Jim Witler [mailto:plus4@COLORADO.NET] Sent: Thursday, May 11, 2000 6:17 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT} Pressure to MPH At 08:04 AM 5/11/00 -0400, you wrote: >Andy (and list) - I found my notebook dealing with determining the speed of >my Hobie Cat via a pitot tube. It seems that most of the information I used David, How fast did your Hobi Cat go? Thanks. Jim