Sunday, April 13, 2014

More&more people, finally........Evolutions maiden flight!

Yesterday, there were three bats on the pond, My father, the friend, and me.
The wind was about 5-6 knots, then it died and then went up to about 3 knots again.

Enough to sail a bit before the race next weekend.
Fila and blue life were going great.



The highlight of the day was getting evolution waterbourne 

I put the electronics in trimmed the sails(damn the new sails trimm well) and of she was
In the light wind the boat just flies, sailing at the same speed as fila, but accelerating much much faster, due to less weight(1615g)
 
Boats ligned up, evolution is sailing with an aluminu keel which flexes alot, a carbon finn will replace it in the coming days.

Here is fila geared up for sailing
Evolution has the finn far back, electronics in the bow, this results in an itneresting handling, and what was seen on this day a very fast boat out of the box.
In the last photo volume distribution can be seen through the hull curve. Evolution has the peak below the mast, thats were volume is, this keeps the bow up, despite the wide stern. Giving the boat lively handling, reducing the need for a big rudder. This is EXACTLY the effect i was looking for when building evolution :)
The need for a big rudder is further reduced by the small distance between the keel fin and rudder.
This makes a boat that turns easily, and feels nimble, great for crowded racecourses.
Evolution is also ready to recieve a forward rudder(5cm in front of the mast), the front rudder might resolve possible directional stability issues, when under power in hegher winds.
The white rudder is very old, and has a 24% chord thickness ratio. I hasn't been used for 2 or 3 years, but showed great results in light air!

My father will sail Evolution on bled,  there are no numbers for the boat yet, but we are looking at 89 or 86.

The goal for this week is to put all the boats in the water atleast two more times.
-to build a carbon fin for evolution
-fix leaks on evolution
-fix play in Fila's rudder linkage




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