Stick: January 24

dvCali · Joined: 23 Aug 2007 Posts: 1314

A nice late afternoon at the Stick foiling. Robert is out with the Starboard 177 + 7.8 and F4, and I am with my Flikka 117, 5.8 and the Moses. Where is everybody else?

I am still struggling with asset but is getting a bit better. Hard to tell how strong the wind is but we are very far from any white cap, maybe 10 knots or so and we are doing both quite well ... Nice! No way I could be going with a 5.8 in this conditions without a foil Very Happy

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

But would you be going faster with 7.3 and 111 Isonic?

dvCali · Joined: 23 Aug 2007 Posts: 1314

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

After around 58 foil days, I'm still torn on the light wind side.
Same weight as you, same 111 Isonic, but 44 cm is most often used with a handful of light wind tuned cam and non cam sails.
Yes, foiling is 6 meter vs 7.3 for slalom.
Naish foil is 1230 sq cm or so, board 73 is close to Isonic.
Still gotta plane to come up on foil, and the Isonic ready to go is 10 lbs lighter than the Naish Hover 122.

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Yes, foil goes upwind and downwind more efficiently but is easy 1-5 mph slower on a reach across the wind.

dvCali · Joined: 23 Aug 2007 Posts: 1314

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Read what you just said.
Doesn't make sense, does it?
Board has to plane, to unwet from displacement mode to allow higher boat speed so foil can lift the whole draggy at low speed setup.
Plus, your Isonic is 68.5 wide with a 50 tail.
So get the bigger Isonic with a bigger fin, and 1.5 meter bigger sail.....and it planes the same.

dvCali · Joined: 23 Aug 2007 Posts: 1314

kevinkan · Joined: 07 Jun 2001 Posts: 1661 Location: San Francisco

i think there's a distinction b/w a board coming to the surface because of it's bottom shape and planing versus unwetting due to the foil working. the large wings will fly and sustain flight at lower speeds than the board can plane or maintain a plane and it takes less power. pumping and technique further lowers the threshold (just like with planing)

some people have had a harder time learning with really big front wings because it wants to lift so early before it reaches a stable speed (analogy is a bicycle going really slow).

My front wing Slingshot Infinity 76 is ~1500cm2. the next one up 84, is about 2k

dllee · Joined: 03 Jul 2009 Posts: 5329 Location: East Bay

Transition.
When displacement heads toward full foiling, BOTH the foil AND the planing hull is working.
Spent plenty of time fully planing while pumping, even rising up on foil for feets of distance, then dropping back down as pumping is lessened while looking towards front straps. The board still planing but I'm not in any straps.
That would happen mostly in 9 mph breeze with a 5.7 sized sail going into a lull.