Tuesday, June 17, 2014

Radeče race report

On Saturday, 14th of june, the 4th round of the national championship series took place in Radeče.
The course was set on a slow flowing river Sava, the current made racing quite interesting, sadly debris in the water spoiled the fair play a bit. The wind was good, fairly constant, gusting up to 15knts.
A good day to see how evolution handles racing chaos.
At first i was sailing wih no front rudder, the keel finn is in theory big enough to provide lateral support. Yes the boat sails, but there is too much leeway, aspecially compared to the slender deep hulled boats.
After two races i added the front rudder. The boat is way better this way, leeway is reduced to a minimum, if needed it can even be eliminated completely.
The tacks are very fast, lots of speed is lost compared to the hevier, less leaning Fila. But evolution accelerates much better.
Control downwind is maintained all the time, even when the boat nosedives.
Immediatelly i started a string of 4 1st place finishes.
Evolution was fast had angle, but the hadling was shit...
I found that this boat has the mast tooo far forward, more about the reason for this mistake in another post. So the boat has leehelm, which is very anoying an usually slow.
I tried to cure this by leaning the mast bac as far back as it would go ~ 12deg, the kicker on the main was set tight and the jib was far out when sheeted in, but still the leehelm stayed.
A new rigg is needed, in order to move the aerial CE further back.
Another great benefit of the forward rudder is hadling downwind and reaching. When sailing these two directions one can steer using only the fore rudder.
This way the boat handles very directly, an looses next to no speed even at high alpha.


below are some pictures of the regatta:
Slika
this dragon force is often present at races, it has a rigg bigger than legal for rg65 class

 Slika
 Slika

After 8eight races the race was finished, the results are on this link:
http://forum.modelarji.com/viewtopic.php?f=13&t=88284

Update, videos surfaced.
1st race

second race above
third below
fourth below


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