Hobie Cat Forums

It is currently Tue Sep 02, 2014 12:54 am

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Sun Jul 29, 2012 7:59 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 324
Location: Cape Coral, FL
Image

Image

Image

Dry sailed only, wasn't enough wind to push my little truck... :roll:

Soon, soon, I shall have a day off and try it out!

Cheers!

J

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Last edited by kayakman7 on Wed Aug 22, 2012 6:13 am, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Sun Jul 29, 2012 8:28 pm 
Offline
Site Rank - Old Salt

Joined: Sat Nov 05, 2011 1:58 am
Posts: 1494
Location: Forster, NSW, Australia
You got forward facing radar on that thing? Looks good though!

_________________
Tony Stott
2012 Tandem Island "SIC EM"
www.scenefromabove.com.au


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Sun Jul 29, 2012 8:36 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 324
Location: Cape Coral, FL
tonystott wrote:
You got forward facing radar on that thing? Looks good though!


Lol! That's what my girlfriend said, actually it sounded more like, "how are you going to see? Seems stupid..."

I have no idea how to resolve that minor issue yet. I might have to tack downwind and keep the sail on one side or the other. Maybe I can see when on the hakas?!?

It's all part of the fun :-)

Cheers

J

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 2:55 am 
Offline
Site Rank - Old Salt

Joined: Sat Nov 05, 2011 1:58 am
Posts: 1494
Location: Forster, NSW, Australia
Actually, I am sure you would make a much better average speed downwind by zigzagging, unless the wind is strong enough to semi-plane. In those conditions, the kite will tend to lift the bow, which will reduce wetted area and allow higher speeds. Sounds awesome!!!

_________________
Tony Stott
2012 Tandem Island "SIC EM"
www.scenefromabove.com.au


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 5:05 am 
Offline
Site Rank - Admiral

Joined: Wed Jan 25, 2012 5:30 am
Posts: 270
Location: Clearwater, Fl
Woah !!!! That's a giant spinnaker. I agree that seeing where you're going will be quite the challenge. Have you done anything to reinforce the bow? What about the mast topper, are you able to still furl and unfurl the mainsail with the spinnaker in place?

After digging my bow in and pitching completely over on a fast downwind, I'm now a bit more cautious of a spinnaker unless there's a way to douse it quickly. I was thinking of trying the triak spinnaker on my AI at one time.

Hope you get some video of it working well for you. Good luck and be safe !

_________________
Jim


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 6:36 am 
Offline
Site Rank - Old Salt

Joined: Mon Jun 14, 2010 10:43 am
Posts: 433
Location: Long Island NY
Awesomeness with some HolyCow !! sprinkled on top

_________________
Alan W.
'07 Hobie Adventure Island #1
'07 Hobie Adventure Island #2 Golden Papaya AI LadyJane
'06? Hobie Outback SUV


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 10:58 am 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 324
Location: Cape Coral, FL
CaptnChaos wrote:
Woah !!!! That's a giant spinnaker. I agree that seeing where you're going will be quite the challenge.


That's what I said when it was laid out at the sail loft (Masthead Sailing Gear, nice people)


CaptnChaos wrote:
Have you done anything to reinforce the bow?


no, there's nothing attached to the bow. the sheet and the lazy sheet are on pulleys on the amas, tied off to cam cleats

CaptnChaos wrote:
What about the mast topper, are you able to still furl and unfurl the mainsail with the spinnaker in place?


yes, i think so. i need to experiment some, though. there is a pulley at the masthead with a line rove to lift the sail. when i have everything the right length, it should work nicely

CaptnChaos wrote:
After digging my bow in and pitching completely over on a fast downwind, I'm now a bit more cautious of a spinnaker unless there's a way to douse it quickly. I was thinking of trying the triak spinnaker on my AI at one time.


i think if i let the sheets out it should lift the front, which may help correct the submarining.

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 11:26 am 
Offline
Site Rank - Old Salt

Joined: Sat Nov 05, 2011 1:58 am
Posts: 1494
Location: Forster, NSW, Australia
I would be tempted to remove the two bottom panels so the spinnaker was straight along the bottom. Sure you might lose some of the drive, but you won't get a sore neck trying to see what to avoid.

How do you douse it? I assume you let go the brace (one side), and haul in the sheet (the other side) while dropping the halyard. But I guess doing that you would need some way of bringing the sheet in from the ama turning block.

_________________
Tony Stott
2012 Tandem Island "SIC EM"
www.scenefromabove.com.au


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Mon Jul 30, 2012 9:47 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 324
Location: Cape Coral, FL
tonystott wrote:
I would be tempted to remove the two bottom panels so the spinnaker was straight along the bottom. Sure you might lose some of the drive, but you won't get a sore neck trying to see what to avoid.

How do you douse it? I assume you let go the brace (one side), and haul in the sheet (the other side) while dropping the halyard. But I guess doing that you would need some way of bringing the sheet in from the ama turning block.


cutting down the sail is probably a good idea, but might cost as much as the sail itself.

It has dousing line, I am planning on letting the sheets fly and hauling everything in from the center of the sail while slowly lower it.

j

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Tue Jul 31, 2012 2:44 am 
Offline
Site Rank - Old Salt

Joined: Tue May 18, 2010 2:31 pm
Posts: 2699
Location: Kailua 96734
Gulp :shock:

That thing's going to fly. It looks ready to plane, sitting on the trailer.

Reminds me of the 49rs they are racing at the olympics:

Image

You BETTER be on the Hakas!


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Tue Jul 31, 2012 5:54 am 
Offline
Site Rank - Old Salt

Joined: Sat Nov 05, 2011 1:58 am
Posts: 1494
Location: Forster, NSW, Australia
A dousing line will do the job. A lot of racing dinghies have a long mesh tube into which the spinnaker gets sucked, and then spouted from when hauling.

_________________
Tony Stott
2012 Tandem Island "SIC EM"
www.scenefromabove.com.au


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Wed Aug 01, 2012 8:41 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Jul 19, 2012 11:59 am
Posts: 11
That thing is gorgeous!! Could you post a picture of your masthead?


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Wed Aug 01, 2012 11:23 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Jul 19, 2012 11:59 am
Posts: 11
What are the dimensions on that spinnaker?


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Thu Aug 02, 2012 6:47 pm 
Offline
Site Rank - Old Salt

Joined: Wed Oct 19, 2011 6:02 am
Posts: 324
Location: Cape Coral, FL
Hi,

This is the second generation mast top, I replaced the first one after the mast top came off in my hands.

Image Image

It's 1.8mm spyderline wrapped around the mast. It's 100 pound test, in theory, it should fail before over stressing the mast.

The sail has 17'6" luffs and a 14'6" foot, so upwards of 200 square feet!

j

_________________
2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
&
the TI3 rear ama mod


Top
 Profile  
 
 Post subject: Re: Spinnaker Eyecandy!
PostPosted: Sat Aug 04, 2012 7:35 am 
Offline
Site Rank - Old Salt

Joined: Sun Apr 20, 2008 6:18 am
Posts: 1277
Location: Sarasota,Key West FL
kayakman7:
I love it, once you get used to using a spinnaker you won't ever leave home without it (it opens up a whole new world). On mine I have pulleys attached to the ends of the rear AKA's with a single loop of rope tied to each lower clew of the spinnaker. Once I get the sail set where I want it I tie it off by wrapping the line around paddle clips on the rear AKA (really works nicely). With the control lines mounted nearer the back of the boat you can use the spinnaker anywhere from 90 to 270 degrees (if you look at most spin setups on the bigger monohulls you will see they always have their control lines as far back on the boat as possible).

One thing I discovered on mine that could cause a problem for you... If you open the front hatch and look inside you will see the metal triangle brace setup is very strong to prevent side to side movement (you shouldn't have problems with that). However if you study where the stresses are from the spinnaker (mostly forward) you will discover the mast reciever acts just like a giant lever for the forward and backward forces. The pivot point is about a foot up from the bottom of the mast, you then have a 17 foot lever pushing forward (the sail). This create a backwards force at the base of the mast cup that is huge (could be several thousands pounds of force). Think about it, if you took an 18 ft pole and put a brick under it 1 ft up from the end, when you push down on the long end you can probably lift your car easily with the short end (17 to 1 ratio 200* 17 = 3400 lbs lifting force if I stand on the end ). Now if you look at what is holding the mast cup from forward to back movement you will see a tiny 1/4" stud that is all that holds the mast cup. Without doing anything you will surely snap that stud when you deploy your spinnaker (been there done that). If you go to my old Ultimate Tandem Island postings you will see I have a 1/4" stay line attached to the rear of the boat, with this stay in place I can furl and unfurl both my main and spinnaker at will without fear of breaking the mast or mast cup (the spinnaker has been deployed in over 20 knot winds many times with out damage). PS Mine is around 130 sq ft, with that I have got over 18mph on several occasions. Don't worry about the bow diving with the spinnaker, it typically pulls up, I have never had a problem with the spinnaker pulling the bow under, but have had problems several times downwind with the main and jib deployed as a gull wing (without the spinnaker) ( I call it nautilus mode LOL). But your spinnaker is much larger than mine, so you may want to wear a mask and snorkel the first time out ( LOL).
Another option for you with your setup (if you don't want to run a rear stay line) would be to make sure anytime you deploy you spinnaker you make sure you have your mainsail furled about halfway out and pulled tight. This will likely be enough to counteract the forward force of the Spinnaker ( I was told some people with Cat's do this).

Not trying to bore you here with details (too late LOL). I think with the type of spinnaker you have you may need a spinnaker pole to keep the sail from lufting. Mine is an assemetric spinnaker (like a G2) so one of the lower corner clews is attached to the bow, when tacking from one side to the other I pull the sail thru the center (around the bow) with the big loop rope. You may be able to do something similar by tying a loose rope between the two lower clews, then running it through a pully attached to the bow. This would allow you to pull the spinnaker tight to either port or starboard on a reach without the need of a spinnaker pole.

Before I got my rotofurler setup, to take the spinnaker up and down, I would turn downwind then lower the halyard while pulling the sail in from the bottom, then stuffing into a sail bag (can be kind of tricky in higher winds). With all the ropes flying around always carry a knife in your life jacket pocket.

And most important have fun.
Fusioneng


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2  Next

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group