On Tue, 23 Sep 2008 08:19:36 -0700, Gordon wrote:


How do I ballpark the fuel usage for a modified keel 37' ketch 18000#
at 5 knots with a Westerbeke 4-108 with a fairly clean bottom?
Gordon

My 37' Irwin with a 30' LWL, shoal keel and a Perkins 4-108 (the same
engine) cruised at around 6-7 kts with a clean bottom at 2400-2600 rpm
and used about 0.8 gph. Dirty bottom lowered that to 5kts and really
dirty to less than 5kts.

Steve