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Flying Fifteen International Rule Changes
Keith Jamieson 4522

Flying Fifteen International Rule Changes

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To all UK Flying Fifteen Owners and Members, we have reached a biennial rule change year and you are required to vote on some important rule changes that affect the governance of the class, world wide.  You are also required to vote on some important rule changes involving, the over all weight of the boat, the shape of the jib and the how the world championships are organised.  It is vitally important for the future of the class that you cast your vote, this is what you pay your membership for, now is the time you get your say!

It is now possible to vote direct on line here

Please read the proposals attached here and vote here, then return the ballot form to the UKFFA secretary before 31st August.  Only those flying fifteen sailors with a financial interest in the UKFFA may vote, i.e. paid up members! If you require a word version of the ballot click here down load fill in and email back to the secretary as an attachment

The proposed changes are in red bold italic script and the reasons are in dark blue, please take the time to read and vote, the future of your class depends on it. Please see attached  Images of the new proposed jib on which you are being asked to vote

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Collapse Expand Comments (2)
Keith Jamieson

These comments have been supplied by FFI on the process of the sail development to date and the info found.

The class made the decision back in 2009 or so to rely on information from FF
sailmakers and experienced sailors including World Champions.
The sails produced were then tested by experienced class sailors covering the full range of crew weights.

Please keep in mind that even America's Cup Boats need tweaking and it is very
rare for the CLR and CoE to be exactly where the designers intended. This can
be due to any number of variables in the sails, spars, hull, keel, rudder etc.

The empirical testing carried out has not at any stage found shown any increase in heeling force or hiking effort required. On the contrary the majority of test sailors have commented that the reduced overlap has reduced the hiking effort somewhat.

A very quick and rough calculation for the working sails shows the C of E would be within about 30 mm of the current setup.

None of the quotes from testers mention any need to hike harder.

Please see additional comments from the testers below, these are direct quotes from individuals involved.

Keith Jamieson

Some of these comments do also relate to a main that was suggested but rejected but all include comments on the fore sail.

"In the tests I did we were amazed how much easier it was to tack the proposed jib in over 15 knots. It is possible to get the jib full in with one rope pull. Therefore, it is in before it loads up."

"For a 20’ boat it is amazing how little room there is for the crew on a Fifteen especially in lighter winds when crews are sitting on the floor or leeward deck. The proposed jib will give a bit more space and light wind
tacking will be easier again this was proven in the tests we did. "

"…..New jib is brilliant, you can see where you are going, easier to pull in and boat goes really well with it. “

And this from ?2007/8/9 "The class gave the sailmakers the challenge of updating the aesthetics of the rig in addition to enhancing the handling and balance of the boat. The fleet of four development rigged boats and four standard rigs sailed in a variety of conditions that gave a good deal of
comparative information for the class to consider. The brief given to the Class UK sailmakers was not to increase the combined sail area of the mainsail and genoa.

Charles Athorp has made some valid comments about the sail changes
. . . "The new rig is a big assistance to medium weight and light weight crews and modernises the appearance of the boat. Basically the boat goes forward rather than falling over as the sails twist off. Raking the rig just adds complexity, cost and doesnt achieve the same results. All modern classes have gone away from raking rigs towards a skiff style self adjusting rig - more akin to a windsurfer."

"The benefits need to be explained better: The real problem is misinformation, most people believe that having more area at the top makes the boat fall over, whereas the converse is true because the top of the rig is less supported by cutting away the area below, therefore it opens up much earlier. But it also balances the boat and makes it much nicer to sail, less weather helm and easier to sail - so it is really a no brainer."

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