Geoffs
Active member
Did some trials with the boat at the weekend, thought it might of interest. As a reminder boat is Larson Cabrio 240 with Volvo D4 260.
Trials done in slack water of Swanage bay with speed average of two runs in opposite direction, SOG. Fuel consumption data taken from Volvo web site for D4 260.
Sort of interesting, shows most economical speed is about 2400 rpm about 23.5 knots. About 1.1 nM per litre. Probably a bit optimistic, overall I get about 1 nM per liter.
Trials done in slack water of Swanage bay with speed average of two runs in opposite direction, SOG. Fuel consumption data taken from Volvo web site for D4 260.

Sort of interesting, shows most economical speed is about 2400 rpm about 23.5 knots. About 1.1 nM per litre. Probably a bit optimistic, overall I get about 1 nM per liter.