2015 AI Capsize

As a new 2015 TI owner...

Matt, you are killing me with that photo...

Sorry, I could not resist.

Yeah... on a handle, but would be most effective on the forward crossbar.

_________________
Matt Miller
Former - Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA
(Retired 11/7/2022)

Certainly don't wish to open any can of worms!
As I stated, the bunges stays and do what they do as before.
Straps should just prevent any possiblity for the hatch cover to move.
On the picture, the knots shortens the bungees and actually increase the down force on the hatch cover.
I have already reached the status 100% absolute water tight hatch cover by my own type of sealing.
I just want the hatch cover to be secured from any movement caused by gear shifting place underneath the hatch cover, due to big waves (or a capsize).
As long as the hatch cover don't move I know it will hold every drop of water in the sea (where the water should be!).

best regards
thomas

Thomas, if you take care to ensure that any heavy items you put in the forward hatch are underneath soft items (like tents, sleeping bags etc), these soft items should greatly limit any upward impact from the heavy items. Or, you could put such heavy items into drybags, and lash them to the rear cargo area, which will have the added advantage of lessening the bow burying in heavy waves.

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Tony Stott
2012 Tandem Island "SIC EM" with Hobie spinnaker

Hi Tony

Yes I know that. In my case the hull is pretty stuffed with gear (last trip was 18 days) so I have to plan thoroughly to get everything IN the hull. Can't allways get it all extacly WHERE it best should be. But still, even small, light things can move and get out of positions when you travel a couple of hours in rough sea. I just want to know that the hatch cover can't move. Bungees are flexible with the advantage of holding a constant pressure. But they are flexible.

best regards
thomas

Tony, my tent is not a "soft" item. It was the last thing in the hatch directly below the cover (I usually carry it on a haka where it may have been lost.) It is in a sturdy dry bag because I don't want the poles to get wet and ruined w/ saltwater. Consequently, bag/tent/poles probably weighed 7-8#. When the boat capsized, that bag would have been "thrown" up against the hatch cover, compromising the hatch seal with subsequent flooding of my hull. I think the capsize was a very powerful event in the direction of the capsize. The mast tip bounced off the bottom gouging up sand and mud. The tent bag would have been thrown forcefully against the hatch cover. That is what I think happened.

Keith

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2015 AI 2, 2014 Tandem

"Any intelligent fool can make things bigger and more complex ... It takes a touch of genius and a lot of courage to move in the opposite direction." A. Einstein

"Less is more" Anon

I read your description of this in another thread and I think I have the right picture in mind.

But before I go ahead and try to implement my own, could you post a photo of it?

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2015 AI in "Dune" - "The Grey Pig"
2017 Trailex 450 Trailer
Pre-September 2015 cradles
(anybody want to buy a slightly-used AI SpinKit?)
eMail: [email protected]

My take on multi-hulls in general is that capsize and recovery from same should be something that I have down so pat that they just add to the interest of sailing that day.

i.e. There should be zero or close-to-zero "potential danger" from a capsize.

I am not there yet with my AI-2, but am working on it and expect to be there by the end of this season.

I don't think "How often" applies. .... If I can't afford to lose, I don't play the game. ..... Between the sail's see-through area having gone cloudy in less than 1 season and the sail being about 8" too low to clear my head and the many channel markers around here I have to assume I'm going to hit one of those markers at full speed eventually.

_________________
2015 AI in "Dune" - "The Grey Pig"
2017 Trailex 450 Trailer
Pre-September 2015 cradles
(anybody want to buy a slightly-used AI SpinKit?)
eMail: [email protected]

Could you post a pic of that?

_________________
2015 AI in "Dune" - "The Grey Pig"
2017 Trailex 450 Trailer
Pre-September 2015 cradles
(anybody want to buy a slightly-used AI SpinKit?)
eMail: [email protected]

I carry one spare rudder pin, a spare shear bolt on each aka brace, and a few (number varies because I break the things on a fairly regular basis) spare shear bolts in my tool bag.

But I also have a handful of round bamboo chopsticks in the port net storage area. .... Whenever we eat Chinese, I save the chopsticks. ..... They function adequately as shear-bolt replacements (they shear more easily than the bolts, but are strong enough) ..... and they have the ergonomic advantage of being easy to grab and quick/easy to insert by virtue of being long (easy to hold) and tapered. .... they also easily push out the remnant of the broken bolt that is often jammed in there.

Dunno how well they work as temporary rudder pins.... gotta give that a try....

_________________
2015 AI in "Dune" - "The Grey Pig"
2017 Trailex 450 Trailer
Pre-September 2015 cradles
(anybody want to buy a slightly-used AI SpinKit?)
eMail: [email protected]

My breaking two shear pins in one day would seem to support your position. .... Absolutely, positively, indubitably did not hit anything either time ..... And two in one day (on different sides) would seem to dispose of the faulty bolt explaination.

Not what I would call "Rough Seas" either.... just bay chop on a high-teens/low twenties (MPH) day. ..... Pointing upwind in both cases.

I think they just break when one is sailing fast enough and hits the right wave at the right time.

But I also think that with your Keeper Lines installed shear-pin breakage becomes trivial: I see the break, furl the sail, replace the bolt, re-deploy the sail and sail on....

Time will tell.

_________________
2015 AI in "Dune" - "The Grey Pig"
2017 Trailex 450 Trailer
Pre-September 2015 cradles
(anybody want to buy a slightly-used AI SpinKit?)
eMail: [email protected]

Pete, they won't work well as temporary rudder pins as their diameter is too small. The slop will enable the rudder to randomly jam in the pintles.

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Tony Stott
2012 Tandem Island "SIC EM" with Hobie spinnaker

Pete:
Now you get it....
We are all just tryin to help.
FE

So, had an interesting moment yesterday, almost capsized the TI. It was kind of a freak thing. Nothing broke to cause it, purely wind. I was out solo winds were a nice steady 10-15. I had full sail out and was hiking out on the tramps just to flatten the boat out. I was on a starboard tack, winds we're out of the SE. Went to tack and as I was moving from the starboard tramp into the main hull a 20+ gust hit me out of the South. With my weight shifting, the ama in the air, and the gust hitting me broadside it was almost catastrophic! Leeward ama completely buried, sail was almost in the water and I was left scrambling up the windward tramp. I quickly released the main sheet as I was scrambling up the tramp. Eventually, the gust abated, coupled with the leeward ama's floatation and my weight, the boat righted itself. Amazingly nothing broke. Needlessly to say I called it a day after that.

Sent from my SPH-L720T using Tapatalk

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2015 Hobie Tandem Island Hibiscus
"Third Normal Form"

• Trampolines
• Hobie cover
• Davis Spar Fly
• Kayakbob's Sprayskirts
• Spine Board Hakas

TI-Tom:
That same thing has happened to me a whole bunch of times (almost capsize). That's one of the main reasons I widened my boat an additional 2 feet to prevent that from being a possibility. It's even worse when you have more sail area added to the boat (my jib is 33 sq ft). Sometime those gusts happen so fast you can't scramble out onto the tramp fast enough. Actually with my TI when that happens that AMA dives and the boat stops abruptly, you were lucky, pretty much everytime that has happened to me it always takes out the AKA sheer pin. I would think the water pressure from lets say 12 mph forward motion on that AMA underwater has to be tremendous.

As an experiment sometime just take your arm and jam it in the water while going 3 mph, then do exactly the same traveling say 12 mph, I suspect at 12 there is no way you can hold your hand against the water pressure (water is 1000 times more dense than air).
FE