Capsize & recovery of a Wharram Hitia 17'
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- Опубликовано: 14 сен 2016
- In preparation for the Race to Alaska (R2AK), Thomas and Scott intentionally capsize their modified Hitia 17' in Lake Washington (Seattle, WA, USA). Stills and commentary on our blog --
www.searunners.net/capsize-rec... 
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Wow , thanks so much for this post. To see not only the Wharram stability but most to see the difficulty two healthy men have righting it in calm conditions. I can only imagine standing on that hull when there is a 2ft chop or worse running, i.e. the conditions where your most likely to capsize. Thanks again.
or you could change you righting moment 90 degrees and roll it over the bow utilizing the least buoyant force instead of the most ..
2 things come instantly to mind / Deck paint around the midships on the outside of the hulls / a pole that can be lashed to the inside edge and the rope attached creating a triangle , and then the pole leveraged on .... up she comes .
I didn't think the Hitia 17 had the capacity for that race. Nice job on the capsize. Wharram should post this video as evidence of the boat's stability.
It was pretty comfortable for most of our trip from Port Townsend, WA, to Telegraph Cove, BC
It's nice to see how difficult it was to flip the Hitia. Your best plan bar none is to not go turtle. Any time you feel like you might be in danger of capsizing you should be hoisting positive floatation to the masthead on it's own dedicated halyard. There's no excuse for going turtle on such a small and conservatively powered catamaran. Just guessing about your dimensions, but if you had a cubic foot of floatation at 12 ft (length of mast?) you would have 64 x 12 = 768 ft-lbs of buoyant righting moment vs. the weight of the high side hull at say 150 lbs on a 2 ft. moment arm for 300 ft.-lbs of turtling moment. Such a situation then gives you all kinds of time to get around to the bottom side of the boat and properly right it using just body weight and a grab point. You'd be able to pop it right back. All that other nonsense you're thinking about with water bags is ill conceived, You could accidently end up crushing those door skin hulls or exhausting yourself. That would be a sad moment. You should also be wearing gloves. Any hand injuries will significantly add to the distress. Long live the R2AK!!😂
Ha, this is funny, just ran across this video at random on RUclips and realized, hey, I know that boat! It was in the space next to my Hobie 17 at Sail Sand Point. As far as I know it's still there.
Once you have it turned Turtle, and wish to right it again, I submit that you each hook a righting line to each stern point (from the bottom around the outside of the hulls. Then stand on the forward crossbeams andhike out forward. As you bury the bows, the sterns will come right up and over again.. As she comes over the top and down , you each fall off toward the outboard sides. A piece of cake. The moment of the bows to the base of the wishbone is way shorter Than the sterns to the base. And it saves you messing with the rudders, etc. I think if you give this a try, you will be pleased . . . !!
Lesson learned, sail with big, heavy crew. Polynesian woman are perfect and love the sea.
Excellent and informative, thank you!
Belatedly - it is allegedly easier to right an inverted cat by pulling the bows under, in pitch.
On a Hitia there is probably even less buoyancy in the stern - iirc.
And any water that has found its way below should then assist (free surface effect) by making its way further aft...
Murray's marine sells a ballast bag, you fill it with water, to add weight, you should buy a universal righting line to use with it and it should be easy
Un espectáculo!!!
Try using a pull rope for each man, have a capsize gin pole for each rope stored on the underside of the trampoline. Mechanical advantage could help.
I was wondering when the cat is upside down. Maybe place a long board from center of trampoline over keel and walk out on it as a fulcrum. Then when boat comes up walk back toward keel and keep momentum up by pulling the ropes. Kind of like how the Bahamian sailboat races when they use a long board to hike out on sometimes a bunch of guys hiking out. But in reverse for righting?
A few people has a smallish barrel buoyancy thing fairly high up in the mast.
It will prevent it from turtle.
I wonder if some kind of inflatable bag fitted near the top of the mast...maybe with a CO2 cartridge, that you could set off when needed, otherwise could be tied up out of the way would help get the boat back on its side.?
Good idea. We had spare 20 liter dry bags which we talked about attaching to a halyard and hauling down to the masthead, but we haven't tried it yet...
Hi,
could you lut me know about speed under this sail?
should be easier if one sits on the shoulder of the other creating a greater momentum
You got this mono sailors........multihull don’t sink
Loving the training you fellas committed to for the R2AK! I'm not sailing my cat as yet, she's under construction down under near Sydney Australia. It's a 20ft Polynesian inspired double canoe... check it out! ruclips.net/video/lHIIsAi3Sf0/видео.html
Cheers, Aaron
Now add 5 metre waves in the Pacific and 50kt winds to this and do it all again...
Boston Whaler made the head of the main a flotation cell the whole triangle so you couldn't go turtle the mast head just floats . And you dont have to attach a life vest to a halyard under water to hoist to the mast head accomplishing the same thing.. . If it took this long to right a capsize in my sailing academy when I a wee lad I would have to do it again and again until it was quick ... I mean come on get all that stupid safety gear off youre not sinking yet.. this video should be less than five minutes not forty .... love the boats though ... send bloody cushion to the top of mast duh !!!
A catamaran's worst case scenario is depicted here, t'is why the trimaran is superior... you can flood one float, stand on it and right side up it comes.
And for Christs sake if your going do it the hard way why are you choosing the most buoyant lever to right the hulls ??? its ten times easier pulling the bow or stern while you dip the tips the beam is going to be impossible . You have to be smarter that the machine come on now .. ok you guys are out ! Moe Larry Curlie ? go show um how its done !