Originally Posted by hadd
im thinking of doing i.o.m cruise. how much fuel will i need if crossing in 5.2 rib with 70hp engine, say from conway,cheers.
Based on the info you have provided.
Regardless of boat weight and speed
- 2 stroke at full throttle- 23-24 litres per hr
- 4 stroke at full throttle- 16 litres per hr
Reduce throtlle accordingy and consumption will reduce. Without knowing the boat/weight/sea state etc I would guess that you could get a reasonable cruising speed with about one third better consumption that the 2 figures above. You will know already what sort of speed you can cruise at.