That cat's not fat .................. it's just got big bones

Didn't the sticker mob ask you if you wanted to buy a vowel

John340 said..

Paddles B'mere said..
Didn't the sticker mob ask you if you wanted to buy a vowel

Don't you mean 2 vowels?

Computer sez nooooo.

decrepit said..
Great stuff imax, if it goes as well as it looks, you'll be all grins for weeks.

Thanks decrepit .
Or , if it's a dodgy concept and doesn't work , it's an expensive covid project .
At worst it's amused people . Pics are worth a thousand words , or something like that .
I think it will work for a early planing light wind play thing . I think it would also work ok in sub planing , like a slow turning LT.
My old RB would still blow it away sub 10 kts .
Hopefully I'll give it a spin tomorrow.

Fangys fins finally finished ,

Filled cavity with expanding foam.
Glued on eva gasket .



Finishing these fins was not that hard . All you really need is a disk grinder and a orbital sander some time and deaf neighbors . The rough cast finish is quite good . The tuttle didn't need much fitting . The PB was more work fitting into the box .
I could have gone shinier but they will oxidize anyway .
All i need now is wind .


Brass nuts.

To keep the fins warm

Thanks for all the info

^ Sure does, but it does not seem to do it at a rate that causes any issues. On my fins after two years of action, the oxide resulting seems to simply bind the brass in place, and I have not had an instance of the corrosion advancing to the point of the nut being lost...yet. Aluminium oxide is a poor conductor, so it may be a situation where the corrosion only advances to a point where there is no more conduction (i.e. self-insulating) and we need to do nothing more.
Recently I have been epoxying my brass barrel nuts in situ, trying to get a thin epoxy insulating ring. Too soon to tell if it's a winner or not. Atm the worst-case scenario is the nut becomes loose and we epoxy it back in. I have used Delrin and it works quite well but is simply not as strong as the brass. One of the guys here made stainless steel barrel nuts. So far they are the best I have seen for the least galvanic reaction.

First test drive today.

Im very happy .
Perfect wind for testing , starting at 5 , then up to gusty 10 to 13 ish kts .
9.4 m NP V8 , 28 cm Fangy fin.
In 5ks and under , slippery through the water ( like my old RB ). In 5 to 10 the RB would be quicker .
It points very high . Stable and medium big feel . Jibes and tacks good .
10 kts just before planing , slogs and points about the same as a big free-ride .
Above that it gets on the plane earlier than anything ive sailed , very happy . I was hoping i could just sit there like a bog on a shelf , but it did want some downwind to get going . And liked to be held there for a second longer than normal . Having said that it was very marginal wind and really needed a bigger fin to to push on to get things started .
The board behaves nicely , does not feel overly big , kinda like a big free-ride with a long bonnet . It jibes under power normally , just with more front swing weight . It carries its speed through the turn like rolling on marbles . I think ill do my first proper planing jybe exit on this . I was worried that the sharp rails might do something strange , but didn't . It was flat water .
Once planing it was very comfortable and went through lulls like ive never felt before . More happiness .
It wasnt as fast as i thought it may be considering how fast it is in low wind . Its not slow , id say average . Again a bigger fin may have helped .
Ill give a further review with a good 12 to 14 kts . Ill play with settings and a bigger fin when the tide allows .
Impressed with the grip the 28 Fangy fin had , could push against it in the gusts and it didnt let go . Thats not bad for 28 cm on a wide board and big sail.
Ps: Dont ever buy NP foot straps . They are cheap , twisty and horrible .

Imax1 said.. >>>
It wasnt as fast as i thought it may be considering how fast it is in low wind . Its not slow , id say average . Again a bigger fin may have helped .
Ill give a further review with a good 12 to 14 kts . Ill play with settings and a bigger fin when the tide allows .
Impressed with the grip the 28 Fangy fin had , could push against it in the gusts and it didnt let go . Thats not bad for 28 cm on a wide board and big sail.
Ps: Dont ever buy NP foot straps . They are cheap , twisty and horrible .

Sounds like a trim thing, long flats are fast sub-planing, but can have to much wetted area if they sit too flat, even truer in flat water, with no chop to get board off water. I think you had planing area behind the footstraps yo get on the plane earlier, this can extend wetted area by pushing the nose down. once planing. If you want it to plane faster, you may need to increase the angle of attack, by shifting weight back, or decreasing down force of the sail.

It would be interesting to see what sort of compromise there is, get the weight too far back and you may loose that glide through lulls.
Just a matter of finding the sweet spot that gives the best of both worlds.

Took out the FKD Titanic today with a proper 8.6 race sail . NP Evo for ****s,n giggles .
Started with 10 to 15 kts and slowly increased to 15 to 18 ish.
It behaved so well
Planed super early for 115 kg me . Fired upwind , handled the bigger wind and chop with ease and a lot of noise .Even with the noise it's a smoothish ride .
Even jybed OKish
Speed is medium , definitely not fast even with a race sail . I'd say possibly a tad slower with the race sail apposed to a two cam . I think the race sail pushes on the front too much and slows things down . I had a go standing behind the straps and it did get livelier. If i moved everything back I'm sure it would go faster but it would then change what this board is about . Later when the wind increased I could have changed down a board size or three but I was having too much fun .
Its main strengths are early planing and it's ability to go seriously upwind .
Thats enough waffling ,

Paddles B'mere said..
Your board went well today, that last real gusty run back to the beach sorted you out though

Yeah it was getting..........proper windy .

^^^
That's not a bad idea , Im thinking about it . A sliding mast track would also work good . A short one . Just slide it back 15 cm when properly powered up in back straps . For light wind it seems to work best in the middle of the track , so I'd almost get away with the track adjustment that I have , it's just a pain in the ass to adjust in the water .
I once saw a track ,( can't remember where ) , it was a simple lever pushing down on a hinged notched plate that allowed adjustment in steps . Way simpler than the Mistral rope and pulleys system .
If I had one in front of me , or detailed pics , I could copy it , a shorter version .
Well worth thinking about .

Awalkspoiled said..

Imax1 said..
^^^
That's not a bad idea , Im thinking about it . A sliding mast track would also work good . A short one . Just slide it back 15 cm when properly powered up in back straps . For light wind it seems to work best in the middle of the track , so I'd almost get away with the track adjustment that I have , it's just a pain in the ass to adjust in the water .
I once saw a track ,( can't remember where ) , it was a simple lever pushing down on a hinged notched plate that allowed adjustment in steps . Way simpler than the Mistral rope and pulleys system .
If I had one in front of me , or detailed pics , I could copy it , a shorter version .
Well worth thinking about .

That's the Phantom track which is also used on the earlier version of the Kona CarbOne. Really reliable design which can be locked in position also. In USA I think you can get them from Progessivesports.com (Owner Steve Gottlieb will know what they're properly called - they won't show on their website) but I don't know about worldwide. The early 90's AHD Eliminators had something similar. Those are both built-in to the hull. There was one in the late 80s which could be installed into a finbox but it was always failing.

Thanks Awalkspoiled
No problem building into the hull .
Does anyone have a detailed pic or better still , drawings , or one laying around ?