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 Post subject: spinnaker aspect
PostPosted: Mon Nov 28, 2011 1:42 pm 
Site Rank - Deck Hand

Joined: Mon Aug 23, 2010 11:03 am
Posts: 4
Hi guys,

I have an original Hobie Tiger spinnaker for my Tiger which is 19 sq.m. and also spinnaker that I am not sure if it is a tiger spi and I tried in a race. I had measured this new spinnker and althought it is about 21 sq.m. it is lower aspect than the 21 sq.m. tiger spinnaker(about 50cm bigger foot and 25 cm shorter leach).Downwind we weren't very fast in high wind(in low wind we were faster)and eventhought we passed the winward mark first in 2 races,some boats passed us downwind. With the old spinnaker we were not loosing places easily in downwind with this wind and it was smaller than this.Do you believe that aspect difference affects so much the performance in this boat(much for a race and not for leisure)or it was just my bad downwind day?

Last edited by christospanag on Mon Dec 05, 2011 8:03 am, edited 1 time in total.

 Post subject: Re: spinnaker aspect
PostPosted: Mon Dec 05, 2011 6:24 am 
Site Rank - Admiral

Joined: Tue Aug 01, 2006 6:41 pm
Posts: 207
Location: Commerce Twp, Michigan
Sounds like you were running the smaller sailplan (19 sq.m vs 21 sq.m) Tiger spinnaker. F18's have two sailplans depending on crew weight. Light crews use the smaller sails and heavier crews use the larger ones. This does level the playing field and is effective. But there is variation in spinnaker cuts depending on which boat (manufacturer type) it came from. The newer Tiger spins have a flatter cut which allows the boat to carry a bit higher (hotter) downwind. Newer Tigers also have the spinnaker blocks located further forward (than early year models) to accommodate the flatter spins. Wildcat spins have a longer luff, longer foot but shorter leach. This is due to the front crossbar being located further back from the bow. But the overall area is still 21 sq.m. I recommend that you use spinnakers designed (OEM or aftermarket) specifically for your boat. Your wallet may not be happy...but your boat will be.

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