Diesel Speed Test

So this morning on the way from Marina Primero to Grado we got to open it up and see how well the diesel performs with WOT (Wide Open Throttle).

Chart

This is a pretty standard test that is designed to make sure that the propeller is sized correctly.

Anyway, the results are in although I did only do a one way run and it was with a slight head wind.

1,500 rpm = 3.0 ltr/hr = 5.5 knots (10.2 kmh)
2,000 rpm = 6.3 ltr/hr = 6.8 knots (12.5 kmh)
2,500 rpm = 11 ltr/hr = 7.9 knots (14.6 kmh)
3,000 rpm = 16 ltr/hr = 9.0 knots (16.6 kmh)
WOT 3,700 rpm = 30 ltr /hr = 11.9 knots (21.5 kmh)

So, for practical purposes 3,000 rpm will be considered flat out because we'll be able to keep that up all day.

Electric motor test to come but the sweet spot already looks to be about 3.5 knots.