Originally Posted by valhalla360
Sure looks like it would be nice and stable upside down.
The idea that you will move a few thousand pounds of balast in storm conditions with the boat upside down is just ludicrous. Similar to traditional cats, your first and best defense is not to flip the boat. With monos you just hope not to go to the bottom during the inital knock down.
Interestingly, I believe the vast majority of commercial
boats are NOT self righting. They put in far more miles in offshore conditions that a cruiser would wait out or otherwise avoid, yet when they've done the calulations and self righting boats were not the answer they came up with....hmmm...
This is true about commercial vessels. The compromise for self righting may not sit well with the intended task and may be cost prohibiting. Leisure wise I think we should have more choice.
With respects to the harryproa I found this.. I have not siffed through it yet though.
"To view the video, go to www.harryproa.com
, then Designs/Racing/Solitarry and it is at the bottom of the page.
how much extra for the rig?
Not sure yet. As it is telescoping and we have not built one at this size, there may be some costs or savings we have not included in the numbers. The estimate is $30,000 if we built moulds for both parts
. Be a few grand less if we use the bottom piece as a mould for the top one. Plus the sail. I'm still looking for a sailmaker
with the right mix of imagination, willingness to experiment
and suitable pricing.
A non telescoping tube mast
would cost about $10,000.
having the tender
double as an outboard
sled is a brilliant idea. you should redo the movie
and second image so people don't miss it.
A big tender
with plenty of power makes exploration, rough anchorages
, big payloads, water
skiing etc possible. Also makes a much better liferaft
, particularly if it has a rig and/or a solar
panel and an electric outboard
. I will change the drawing when I get the build plans complete.
how big would the tender's motor
have to be help right the mother ship after a capsize?
Too many variables, but it would not be huge. In the very unlikely event of the schooner rigged cruiser capsizing (bendy masts, no extras, more than half the weight in the ww hull), the masts keep the boat floating at 90 degrees, with the mast
heads upwind. Deploy a sea anchor
from the leeward hull (the one in the water) and attach a tow line to the hull out of the water
and tow downwind and it would not take much grunt to get it up as the waves and wind
are both helping. May need to give some thought to launching the tender when the mothership was capsized.
The Solitarry in the video above is race
oriented so much more likely to capsize (this will be one of the things we do deliberately as part of the sea trials). If the semi automatic righting (the mast can be canted to leeward and the big, buoyant boom immersed) doesn't work, we will add the tender to the mix.