On 15 Oct 2018, at 3:31 pm, harryproa@yahoogroups.com.au wrote:I am certain that the faster a boat can sail, the less it will motor.
Our Shuttleworth cat would sail down to 2 knots of true wind on any point of sail.
It would sit happily in the mid teens, although above around 14 knots of boatspeed it was pretty noisy.
During an 18 month (very short really) cruise from Portsmouth to Sydney we used less than 250 litres of diesel. Yanmar 28 HP diesel outboard (genuflect)
On arrival half our diesel jugs had red diesel in them.
So yes you are very right.
And even in very light breeze most cruisers were inclined to motor at low revs and hence were not a lot faster than us, and a lot of the time were slower.
Our 2 out of 3 was light weight and speed
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Posted by: Gary Pearce <gary@thepearces.com>
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