4 Meter mono foiler project

[wind_apparent]

Originally Posted by Doug Lord

Heres a vid you may not have seen. The boat has 7 sq.ft. less SA than your boat with the same all up weight as your target weight:
http://www.dailymotion.com/related/x...foiler_extreme

nice vid


(from the M4 site)

Specification
Waterline length: 4m
Overall length: 4.25m
Beam (hull): 0.4m
Beam overall: 2.4m
Mast height: 6.5m
Sail Area: 9-10 sqm
Hull Weight: 20kg
Sailing weight: 45kg

well, the all up seems to be about 10lb more, and the sail area looks to also be about 11-22sqf less. so if the M4 goes, so should the SR-71. It almost makes me want to put more sail on it, but having more canvas than a MPS would be silly.

Your SA is 10.75 sq.m, right?

[wind_apparent]

Originally Posted by Doug Lord

Your SA is 10.75 sq.m, right?

11sqm

[wind_apparent]

I was talking to a windsurfing buddy today about a new sail that he just purchased (he now has a quiver of 9 different sails), it got me thinking, what do you all think about having three sails available for a boat like this? maybe 12.5sqm 11sqm 9.5sqm like windsurfing. So instead of 1 max sail size. 3 different sail sizes. I know its alot of $$$$$$ to start off, but after your buy in, all the sails would last longer. I was thinking about it because this is a foiler, so you want it to foil, 12.5sqm turns a nonfoiling day into a foiling day, 9.5sqm turns a overpowered day into a ripper, and the average 11sqm will work real nice in your 10-15 blow. Just a thought.

Good idea,but why don't you come up with a viable reefing system? The RS600FF rig is reefable-when the boat was sailed as a seahugger that system was hardly used -now that it foils they're finding it invaluable.
----------
"So we started developing the RS600 and seeing how it would convert to being used for foils, and I have to say Clive Everest [the original designer of the RS600] designed virtually the perfect boat for foiling, although he probably didn’t realise it at the time! Now with the RS600FF, we have a foiling boat that works for people weighing between 70 to 95kg, it’s one-design, and with the original RS600 reefable rig you can sail the boat a long way up the wind range.”

[wind_apparent]

Originally Posted by Doug Lord

Good idea,but why don't you come up with a viable reefing system? The RS600FF rig is reefable-when the boat was sailed as a seahugger that system was hardly used -now that it foils they're finding it invaluable.

a reefable sail is an option, but I do see it having some drawbacks:

A) don't think it would work very well with the Pocket luff/camber induced sail technology
B) windage windage windage
C) the 12.5sqm would only be used on the lightest days, so the sail would be reefed a lot.
D) I hope to move back to the Portland,OR area soon (within the next year), so I probably won't be needing a bigger sail myself. (read GORGE)

12.2 sq.m would be the same as the RS600FF-what a power to weight ratio you'd have then....

[wind_apparent]

Originally Posted by Doug Lord

12.2 sq.m would be the same as the RS600FF-what a power to weight ratio you'd have then....

Read; Scary

Fear breeds courage(sometimes)

[wind_apparent]

Originally Posted by Doug Lord

Fear breeds courage(sometimes)

so does stupidity. (sometimes)

[Paul B]

Originally Posted by wind_apparent

a reefable sail is an option, but I do see it having some drawbacks:

A) don't think it would work very well with the Pocket luff/camber induced sail technology
B) windage windage windage
C) the 12.5sqm would only be used on the lightest days, so the sail would be reefed a lot.
D) I hope to move back to the Portland,OR area soon (within the next year), so I probably won't be needing a bigger sail myself. (read GORGE)

But if YOU don't design a working reefing system for this type of boat then how will the **** **** be able to use it on his imaginary foiler?

Design it himself you ask? I'll wait for the laughter to die down now...

[wind_apparent]

well, It has begun again, cut out the strongback/frame today (the real one this time). Scott "Murf" Murphy doing what he does. Hopefully I'll put it together tomorrow.

[yachtyakka]

here are the latest images of the R class

[wind_apparent]

Originally Posted by yachtyakka

here are the latest images of the R class

that's a great boat, very nice renderings. Hope it has a wide enough appeal to where I can take a spin on one in the States some time. Do you know who is heading up this project?

[foilman24]

It looks like the revolution is on its way, and none of dougs "boats" are anywhere in sight. We have a single handed dinghy (moth), a singlehanded trapeze dingy (Sr-71), a two handed foiling skiff (R class), and an all out 3 man super foiler (mirabaud). so where are you going to fit in doug? better start your dumb canting keel sports foiler before theres nothing left for you.