I was looking to sell my N5.5 on this site, now having second thoughts...esp if I can configure a set of
wings when hauling around friends or putzing around in light winds. Anyone have suggestions/specs on how to construct? Thanks.
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eddiecat
Nacra 5.0 (destroyed in storm)
Hobie 16 (restored)
Nacra 5.5- amalgam "Franken Cat"
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custom wings for Nacra 5.5?
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Posted: Jun 01, 2020 - 05:06 PM
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Posted: Jun 02, 2020 - 09:13 AM
wings are not good for light air sailing
you wouldn't trap out in light air - same effect sitting outboard
But traping out on a wing is fun!!!
Edited by MN3 on Jun 02, 2020 - 09:36 AM. -
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Posted: Jun 02, 2020 - 11:24 AM
If you can weld stainless, which is easier than aluminum I think you could use exhaust tubing (maybe) - and, the reason I bring up exhaust tubing is that you can buy pre-bent/mandrel bent pieces easily and would only need to weld together. There is then the issue as to whether that type of stainless would actually survive the corrosive environment. Aluminum piping is even better, but you'd need to be able to bend and weld, then paint it.
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Chuck C
NACRA 500 Mk2
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Posted: Jun 03, 2020 - 10:16 PM
Looks like fun MN3, you got a big ol grin going on there. Yeah would use wings for just sitting around on in light winds, definitely want to get used to trapping out, way out.
Hadn’t thought of exhaust pipe- good idea got a buddy with a welder setup will look into it, and post pics if we able to complete that as a self- quarantine project
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eddiecat
Nacra 5.0 (destroyed in storm)
Hobie 16 (restored)
Nacra 5.5- amalgam "Franken Cat"
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Posted: Jun 04, 2020 - 12:39 PM
That is my friend Zack -
my comment on steel is :
it is 2.5x the weight of alum and from my my quick research is not as easy to bend without the steel failing. not a fabricator so not sure if any of that is an issue.
there are reasons our cats have alum masts, beams, and other parts - weight savings
my custom wings are probably 15 to 20 lbs each
so 40 lbs righting movement 80% of it aft of the CE = performance hit in light air -
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Posted: Jun 04, 2020 - 10:29 PM
Yup, but that stainless tube is thin and derives it's strength from the diameter more than the wall thickness. Probably isn't much different in weight-but, only a 50/50 chance of working, since the alloy isn't 316 and likely to corrode. I don't know.
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Chuck C
NACRA 500 Mk2
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Posted: Jun 05, 2020 - 08:16 AM
i always try to at least be aware of worst case scenario and hope for the best:
so lets assume 2 people weight a total of 350 lbs are sitting on the wings and get caught in heavy air and med waves. the forces being exerted on the frames that hold the seats out is pretty extreme (i bet they are at least doubled when slamming off a wave) - ya think thin walled exhaust pipe is gonna support 700lbs of bouncing weight?
and what is the cost of failure in this situation? 2 people dumped off a wingset, hanging on to sheets to stay with a boat in heavy weather, with razor sharp steel somewhere ...
ymmv
Edited by MN3 on Jun 05, 2020 - 09:03 AM. -
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Posted: Jun 05, 2020 - 08:58 PM
Easy-pull up the engineering stats for each tubing (aluminum and stainless) and compare. You want to match and that same sheet will tell you the weight per foot. It doesn't add up, don't use it. Simple, no calculations needed. Just compare shear strength and deformation properties, like in an I-beam. If you run a risk of shearing aluminum or steel at the same value, you don't want either if you're worried about injury.
Very valid point, BTW. I guess I shouldn't assume anyone would take the same tact and bother with the numbers.
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Chuck C
NACRA 500 Mk2
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Posted: Jun 06, 2020 - 09:26 PM
Don’t underestimate the fun factor of trapping off wings, but don’t ignore the dangers either.
I had a 6 meter Mystere XL, 20’ x 10’, with wings from a Hobie 21 that were modified for the Mystere. They made the boat 14’ wide.
With my paltry 172 lb, fully powered, solo I could just keep the hull in the water in 7mph wind. When that hull comes up, you are suddenly looking at a looonnng fall if things don’t go quite right.
Not only do you fall a good distance, but the opposite board might be partially up, or you hit the opposite wing, the potential for serious injury are real.
My buddy crashed this boat, I broke my ankle, either in the board or wing, not sure.
The company medical department made me take 8 weeks off, from July 1- Sept 4. It wasn’t all bad, they gave me full pay, & I got a plastic cast, so I could go back in the water. Had to give up the stick shift for the summer.
http:// https://www.thebe…53b0742f4247cfd0cc910765
Edited by Edchris177 on Jun 06, 2020 - 09:55 PM.
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Hobie 18 Magnum
Dart 15
Mystere 6.0XL Sold Was a handful solo
Nacra 5.7
Nacra 5.0
Bombardier Invitation (Now officially DEAD)
Various other Dock cluttering WaterCrap
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Posted: Jun 06, 2020 - 09:44 PM
Dammit! Can anyone tell me how to post a photo from an iPad?
I don’t see the “copy image location” in either Firefox or Safari. If I copy the URL, it doesn’t like that either.
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Hobie 18 Magnum
Dart 15
Mystere 6.0XL Sold Was a handful solo
Nacra 5.7
Nacra 5.0
Bombardier Invitation (Now officially DEAD)
Various other Dock cluttering WaterCrap
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Posted: Jun 12, 2020 - 11:48 AM
I may "throw caution to the wind" and go with aluminum, might have found a spare set on a boat that is getting parted out. I envision solo sailing when trapping out on this boat, in light to moderate winds, or just using the wings to putz around with nonsailing passengers on a cocktail cruise in light airs. I do remember that compared to standing on hull, when you stand on wing and hike out- you are WAY out so points well taken. Appreciate all the advice
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eddiecat
Nacra 5.0 (destroyed in storm)
Hobie 16 (restored)
Nacra 5.5- amalgam "Franken Cat"
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Posted: Jun 12, 2020 - 12:27 PM
If you suspect it might break, keep hooked to the trap, or you might see the boat sail away if it happens. Not sure if seated on the wing the trap whill stay hooked though, the wire will be loose and the bungee will prpobably be ineffective.
Edited by Andinista on Jun 12, 2020 - 12:46 PM. -
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Posted: Jan 22, 2021 - 11:18 AM
I'm buying a 5.7 tomorrow with wings on it. -
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Posted: Jan 22, 2021 - 11:37 AM
pics?
Where ? -
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Posted: Jan 22, 2021 - 09:03 PM
I always thought modifying getaway wings would be the easiest solution to add wings to any cat. Someone has done it with this hobie 20
http:// https://www.yacht…tail.jsp&boat_id=3722645 -
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Posted: Jan 22, 2021 - 09:21 PM
that link is not right -
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Posted: Jan 22, 2021 - 09:40 PM
I thought I could cure the link...no success.
Yacht World, (the link), does not list any Hobie for sale.
Fixed... he put an extra HTTPS in the link
https://www.yachtworld.co…tail.jsp&boat_id=3722645
Edited by Edchris177 on Jan 22, 2021 - 10:49 PM.
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Hobie 18 Magnum
Dart 15
Mystere 6.0XL Sold Was a handful solo
Nacra 5.7
Nacra 5.0
Bombardier Invitation (Now officially DEAD)
Various other Dock cluttering WaterCrap
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Posted: Jan 22, 2021 - 09:48 PM
The only 5.7 with wings I know of is Dave’s, in Manitoba.
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Hobie 18 Magnum
Dart 15
Mystere 6.0XL Sold Was a handful solo
Nacra 5.7
Nacra 5.0
Bombardier Invitation (Now officially DEAD)
Various other Dock cluttering WaterCrap
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Posted: Jan 22, 2021 - 10:23 PM
Try this http:// http://www.themultihullsource.com/
Go to brokerage using button on left hand side... btw, this is where I go to drool over Corsairs. -
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Posted: Jan 23, 2021 - 09:31 AM
Here is the link
https://www.yachtworld.co…ic&listing_id=24148&url=
Yup - when i saw/sailed my friends F31R - i was in awe
However - needing a F250 to get to the ramp, stepping a 45' mast, and the cost of the 8hp kicker motor is more than i paid for my 5.5 ......
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