Looking to put a Spinnaker on my newly aquired mossie, just wondering which sail makers everyone recommends and for what reasons, price, quality etc, i know the VMCA site has Irwin and Goodall Sails listed as having Mosquito spinnaker designs, is there any difference between the 2?
I think Danny is right. You are best off dealing with a local sailmaker you can easily talk to and maybe even meet face-to-face. It's also important that they are familiar with asymetric kites for cats.
Most sailmakers will need the dimensions of your boat to pinpoint the halyard, pole-end and sheeting point. From that they will be able to design a spinnaker. Unless they've made one for a Mosquito before. Make sure the sailmaker reads the Mosquito rules. There are some maximum dimensions.
If you just want to go ahead and buy one without stuffing around, there are way more Irwin spinnakers on the Mozzies than any other make. You can just order one from Linsay and get it in the post. Last I heard they are $850.
Had a good long chat with Greg Goodall who was gracious enough to give up his time to discuss every aspect of putting a spinnaker on my mossie, he gave me quite alot of info from his personal experience, even went into a few of his racing tactics with spinnakers.
The spinnaker is a little bigger than the Irwin one, with a size of around 15m2 as apposed to the 14.2m2 on the Irwin spinnaker, i actually discussed this with him and from what he said, in his experience reducing the size of the spinnaker to 14.2m wouldnt allow it to sail tighter to the apparent wind as is the theory and reasoning behind the smaller Irwin sail. From his memory the dimension and composition of the spinnaker he does are as follows: Material: chs 0.75oz nylon Luff: 6750 Foot: 3350 Leech: 6200 Head: 50 Area: approx. 15m2
However he said he was going to look into it more for me and talk to several people about making sure his dimmensions were up to date and provided the best performance based on the spinnaker size restrictions etc.
Also, he said the spinnaker should probably only need two patches for the retreval line, is there more benifit to having 3 patches (which im under the impression the irwin spinnaker has).
In the end, the cost of the spinnaker came to about $780.
Contacted quite a few local sail makers, however their prices started at $900, and none of them had done a mossie kite before.
Discussed with Greg also about the Ratchet Blocks for the spinnaker sheet and he recommended the newer Ronstant Orbit Ratchet Blocks over the older Smart Ratchet Blocks.
Cant wait to get the spinnaker in a few weeks time Guess ill need to go visit the local Chandler now
McGriffin, Are you going to be sailing Cat or Sloop? Good to hear you are going with Greg Goodall, did you talk to Greg about his aluminium spinnaker shoot, bag and deck layout. I have used both the Irwin/Tim setup and the Greg Goodall style, I would be interested in finding out what you are doing? They both have their positives and negatives and the system we have ended up with was primarily designed by Greg. The reason is we sail sloop and the crew raises and lowers the spinnaker. The system others are using has been developed for the skipper doing all the work.
Well im hoping to have a system that can be run both sloop and cat rigged, as i occasionally will be putting the jib on and running with a crew, just depends on when the crew are available, and whether weather is permitting (my first race was sloop rigged with a total crew+skipper weight of about 190kg in less than 5 knott winds .... wont be doing that again!).
Im working off the theory, that if the spinnaker can be setup to be easily operated by the skipper on a cat rigged, then the crew should have no problem handling it on a sloop rigged boat. Will have to see how it goes, if position of sheets, lines etc setup for the helm is a problem for the crew, then i may even setup a system that allows different positions depending on whether the kite will be operated by me or the crew, though that shouldnt be too much of an issue. Any thoughts are appreciated.
The problem we had was deck space for both skipper and crew without sitting on one of the ropes. The sloop method seems to give less problems when sailed cat then the other way around. If you get a chance have a look at a Tornado, Tiapan or Hobie, you will find the spinnaker halyard is cleat is on the mast. The Mossie web site has the halyard cleat is on the deck (cat Rig Style). For the crew to use the cleat on the deck they have to move back along to boat to the skipper position (poor Skipper). If the skipper pulls the spinnaker up the crew sitting in the normal position end up sitting on the spinnaker sheets (Poor Crew).
By moving the Halyard to the mast the skipper stays in their normal position and the crew moves inboard clearing both halyard and spinnaker sheets. Using this system Cat rig the skipper has to move forward about halfway along to tramp to raise the spinnaker, lowering the spinnaker can be done from skipper and crew positions so is not a problem.
I've been using the Ronstan Smartratchets. I find I can hold the spinnaker sheet in one hand with one of these on the sheet. If I'm getting tired I might put a wrap around my hand but usually I just hold it.
I know Gary found that one wasn't enough for his F16 Altered, and he put two Smartratchets on each side. The loads are that much bigger. I would guess an F18 would load up that much more again.
I should mention that all the Mozzies I've seen have this kind of setup to increase the wrap around the ratchet block. Maybe this wouldn't be needed with the harken blocks.
I have the full intention of using an additional ball bearing block to wrap the sheet more effectively around the racket block, just trying to get some opinions about which block is better, i know some people are saying harken are better, but the ronstan block are claiming a 2 times greater holding power of 20:1 compared to the harkens 10:1, i know theres a lot of other variables such as the quality and reliability of the product, which is my major concern (holding power can be increased by simply going to the gym), but ive always considered ronstan to be a good product, i know a few people have complained about them, however im just looking for some more opinions about peoples experience with them.
Yes both the Ronstan Orbit smart ratchet and the harken carbo ratchmatic blocks are auto engaging when under load, the ronstan block i believe is adjustable in this sence in that it can be set to engage automatically only when under load, or set to manual mode where u can choose when to engage and release. The harken ratchmatic i believe is perminently set to automatic mode.