Originally Posted by lakelandterrier
How big's your tank, and what range does that give?
you could always carry a further supply in 20l containers and refuel as needed.
85L in the console and 30L spare Hulk.
My very unsubstantiated guess is 20L per hour (Mariner 90 4-stroke carb).
I never ran the console tank dry, so 85 is from the tank's nameplate.
Speed? If it's like today then 12kts max.
If I assume 1/3 fuel there, 1/3 back and 1/3 spare then I think I need fuel at the other end.