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ACCUMEASURE: PROGRAM KOJI OTKRIVA SVE O STANJU JEDRA

AccuMeasure je program razvijen za analizu dubine i pozicija najveće dubine jedra, a možemo analizirati i druge podatke važne za procjenu trenutačnog stanja i optimalnog namještanja jedra

MLADEN ŠUTEJ: NA JEDRILICI SAM PROVEO 10 GODINA ŽIVOTA

Legenda hrvatskog jedrenja i čovjek koji je kao amater oplovio gotovo sva svjetska mora i oceane, upravo je izdao novu knjigu „Ocean i druge priče“ o svojim dogodovštinama na brojnim svjetskim putovanjima

Author Topic: Gybing kobilica  (Read 12319 times)

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Offline Leprecon

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Re: Gybing kobilica
« Reply #20 on: November 18, 2008, 12:25:32 PM »
daggerboard (ne znam dali imamo prijevod) - dodatna peraja koju gurneš u vodu da povečaš uzgon u orcu i povečaš oslon u vodi u reaching.
Možeš imat jednu simetričnu koja može biti fiksna, gybing (mini), triming (CTBF brodovi poput Alfa Romeo 2) ili dvije asimetrične koje moraš mijenjati kot svake virade (svi novi miniji, Open60, VO70)

AKA cannard

ja nisam cuo za prijevod, sto nije ni cudno s obzirom da je AFAIK u hrvatskoj samo jedan brod s tim sistemom

Offline kvaka22

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Re: Gybing kobilica
« Reply #21 on: November 18, 2008, 05:29:47 PM »
To je efekt koji se u stvari na AC i RC44 brodovima postiže trim-tabom. Na RC44 je također otklon u orcu negdje između 5 i 7 stupnjeva, samo je odnos površine puno veći naravno

Offline dag

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Re: Gybing kobilica
« Reply #22 on: November 18, 2008, 05:44:42 PM »
Trim tab je na izlaznom zubu kobilice?

Offline kvaka22

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Re: Gybing kobilica
« Reply #23 on: November 18, 2008, 05:54:59 PM »
Točno, na RC44 je na izlaznom rubu lista kobilice, i pruža se od cijelom duljinom, od trupa do spoja lista i bulba.

Offline dag

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Re: Gybing kobilica
« Reply #24 on: November 18, 2008, 06:03:09 PM »
E sad, zanima me recimo na lijevim uzdama kamo okrene trim tab?
O čemu ovisi koliko će biti okrenut?

Što je njegova primarna funkcija, da kontrira sili naginjanja ili da vuče u orcu?

Offline kvaka22

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Re: Gybing kobilica
« Reply #25 on: November 18, 2008, 06:39:27 PM »
Evo da ja ne pametujem, prenosim što kaže "tata":

How to tack efficiently, use the trim tab, balance the RC 44, gybe… Discover Russell’s tips!

Trim tab:

Using the trim tab is a powerful adjustment. It is important to think of it in the same way as adjusting the sail trim. The advantage of a trim tab is that the foil effectively becomes asymmetric and therefore the keel area can be reduced. One can also adjust the amount of asymmetry for the different situations. My first impression using the tab on this boat is that it is very easy to use too much. If you use 10 degrees you can physically see the boat moving sideways! It is designed to be a fair fit with the keel fin at a 5 degree angle however, 7 degrees seems to be a good average number when sailing upwind. In stronger winds I consider using less tab angle when the boat is sailing at speeds of 8.3 knots or more. I view the trim tab as operating in a similar fashion to an aeroplane wing flap. Any time the boat speed is really low you should generally use slightly more tab angle to prevent the boat (and foils) from sliding sideways. One should also use more angle when the rudder is being unloaded, such as rounding a bottom mark or at the beginning of a light wind tack. Tactically it should be possible to briefly use 9 degrees or more in order to squeeze someone off. Downwind I suggest using almost no tab unless you are reaching at higher heel angles, where you should use 1-2 degrees.

Offline dag

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Re: Gybing kobilica
« Reply #26 on: November 18, 2008, 11:00:25 PM »
Jos ne kuzim u loju se stranu otklanja na kojim uzdama.

Offline Dario

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Re: Gybing kobilica
« Reply #27 on: November 19, 2008, 12:34:57 AM »
ako vozis na desnim uzdama onda se trim tab zakreće u desno

ne znam da li pimjetio na americas cupu kako imaju timun u timunu..sa unutarnjim timunom rade sa trim tabom  http://cache.daylife.com/imageserve/04bt1Un0ZQ4k1/610x.jpg  evo slika kao primjer

Offline dag

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Re: Gybing kobilica
« Reply #28 on: November 19, 2008, 01:12:09 AM »
Jesi 100% siguran? Shvacam zasto to mislis, ali ima i suprotna mogucnost kada kobilica i trim tab cine krilo pa bi uzgon tog sistema, tako natrimanog, trebao vući u desno ...
Mislm da ipak ima vise pluseva kako ti kazes ...