Originally Posted by Mate
Why would the leopard
then be so high , one spec I read said 2 gallens per hour . In my turms thats over 7.5ltr / hr , far to high.
There is no such thing as "far too high". It is all up to how fast you go - the faster you go, the more hp you use, the more juice you gurgle. Go slower and you will use less fuel
(and maybe also go further).
If you look at the info given by Farr of their recent HR projects (HR homesite) then you will find that their boats get max range under very low speeds. But we all know that it is not always practical to go "that" slow - e.g. when beating against the tidal current
or power-sailing to windward.
There is also the (marginal) probability that the builder
of a specific boat used a mis-matched combo of engine/propeller sizes. In effect the boat may do funny
things - like not reach its hull speed
even if the hp per ton is perfectly adequate, etc. But other than such errors all boats of the same size/design will burn comparatively close amounts of fuel
per hp used.