RL24, RL28, and RL34 Trailable Yachts
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Spinnacker Measuring
Can anyone clarify the spinnacker measurement equeation in the rules for me. I've just acquired a new spinnacker and I'd like to check it's measurements. The equation is:


1. Is the 2nd half of the equation two thirds of G minus F multiplied by L

2. Is L half the foot. ie the spinnacker is folded in half to take the measurements. Refer to Fig2 in the rules.


Mike 14-Aug-2010    Edit    Delete 
Re: Spinnacker Measuring
Hi Mike

1. Yes

2. As I read the diagram in Fig. 2, no. If G/2 is the shortest distance to the centerfold from 1/2 height of luffs, then L is one of the luffs and the side opposite (showing the arc) is the centerfold. That would make F the half foot.


Matthew Francis 14-Aug-2010    Edit    Delete 
Re: Spinnacker Measuring

Congratulations in winning the trailer yacht championship (fast division) at the Canberra Yacht Club last year. You have done a great job in being the lone representative of the RL24 class in what must surely be the biggest and hottest club CBH racing group in Australia at the moment.

Keep up the good work


PS For next season I am thinking you should be maybe be buying a nice new suite of 3DL sails from North sails in Sydney.

Alastair 16-Aug-2010    Edit    Delete 
Re: Spinnacker Measuring
My mistake, of course F (not L) is the 1/2 foot.

Mike 16-Aug-2010    Edit    Delete 
Re: Spinnacker Measuring

Thanks for the good press. CYC has some good racing in my division. Yes, I would like some new sails to keep ahead of my handicap but they'll have to wait a bit. Finances . . . you know!


Matthew Francis 16-Aug-2010    Edit    Delete 
Re: Spinnacker Measuring

I have just read in the August edition of the Yachting World magazine that 3DL (three dimensional laminate) sails are being superseded by 3Di sails. They are made by Norths of course and the i stands for interleaved composite element (ICE) and the sails are moulded carbon sails that are blacker and filmless! They are also lighter, stiffer and longer lasting than the 3DL sails.

If you are a fast reader and have got a good memory, go into your newsagents and pick up the magazine and go straight to page 32. There is a picture of a British X boat making a hash of things on the cover.

On page 41 there is a write up on the new Brisbane built sportboat Brace! Brace! Brace! which won this years Bay to Bay race. I think itís called a Welbourne DSS 25

Em! Em! At the very end of the article they tell us that the 3di sails are only 7 % to 10% dearer than 3DL!

Alastair 23-Sep-2010    Edit    Delete 

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