Hi Mingle & all - really interesting read. I like the look of those outriggers. But seeing as you're the bass player in spinal tap, did you not think of using a couple of outsized cucumbers wrapped in tinfoil?
anyhow, I have the hobie sail on my revo. Love it! I've made the same roller-furler that you have but have been sailing without outriggers so far.
For a sailing dinghy the Revo is an excellent kayak! But nevertheless, it's amazing that it sails into the wind as well as it does, but that is due to the mirrage-drive emulating a bit of a centre-board (plus the sailing rudder too of course). It goes really well on a broad reach. I have recently upgraded from the standard fins to the STs and can notice a distinct improvement . I'm guessing the Turbos wold act even better as a centreboard but I'm not sure i can be bothered. and of course the sailing rudder is a must-have. The standard rudder is mostly out of the water when the yak has any sort of heel (lean) on it when tacking (going into the wind).
without the assistance of the mirage drive it's basically impossible to go completely about (turn with the wind going across the bow) but it's easy enough to gybe (turn with the wind going across the stern). I have put the boat about under sail on a couple of occasions but it slows down so much its not worth it. peddling through the turn is much better.
The trick with Gybing is to control it nicely by yanking the mainsheet just before the wind gets behind the sail. then duck! the sail flips over to the other side with a satisfying thwack!
When I'm sailing into the wind it's most effective to keep the boat as flat as possible, so I lean to windward, and keep working the mainsheet to keep the sail in shape - and let the sheet out to de-power the sail when the wind gusts. the revo is BLOODY TIPPY .. so it's a really good idea to stay awake! keeping the boat flat when tacking reduces the leeway .. where the boat slips sideways as well as moving forward. the leeway effect is less on a reach or broad reach and there's none when you're running downwind.
I like the way you've added fittings to help with the furling line and mainsheet - I'll have to get onto that. I have got a couple of blocks that i run the mainsheet through but so far no other tweaks.
My theory is that the sail is a good value-add to use on the way back
from a trip. It pays to rig the mainsheet before setting out but keep the mast & sail rigged but clippled to the side of that yak. i fished with the mast up once and it was a mistake .. for obvious reasons.. pity it wasn't obvious to me at the time!
It's easy enough to drop the mast & furled sail if the wind gets too much - I have had to do that a couple of times - again just clip it to the side as if it is a paddle.
one thing i wonder - what is the optimum distance for the outriggers to be from the hull? the further away the higher the force where the outrigger crossbars attach to the revo, and the more turning force any drag would have. any comments about that anyone?
and speaking of drag, I pedal slightly when sailing - this overcomes the friction of the hull in the water and seems to maximise converting the lift of the sail into forward motion .. the technique is the opposite of shallow water pedaling .. that is, the pedals are centered and I make very short pedaling movements to keep the fins as vertical as possible.
anyway, thanks again - I'm off to the finn website now to check 'em out! cheers Matt