Want to build a small foiling trimaran

[R.Finn]

Doug have made foiling boats, both full-scale and rc for many years. You can for example do a search for his rc-Trimaran F3, and you will see that it is a damn good foiler..
His Fire Arrow is in many ways a whole new concept. Development takes time

I did a search for the F3, but was only able to find pictures, not video.

 

[neptunkryssare]

 

[R.Finn]

Pretty neat. Why can't that be scaled up?

 

[neptunkryssare]

Another nice rc foiler.

 

[neptunkryssare]

Here is one more foiling trimaran (fourmaran.?) .

 

[Doug Lord]

Foilers

Pretty neat. Why can't that be scaled up?

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Dr.Bradfields Osprey is closer to a scaled up F3 than the Rave or any other boat.

 

[reidhester]

Here are some full size cats using fully submerged and surface piercing foils-just for reference to foil systems:
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Heres a video of a brand new 18' cat using a version of the same basic system Dr. Sam Bradfield used on his tris: dual independent wands controlling T-foils on each side.
https://www.youtube.com/watch?v=T6bXg0LI5EQ#t=16

Wow, that is some amazing video and in the comments section the video producer said they're working on plans for a production version. What a blast!

 

[Doug Lord]

Altitude Control: wand controlled foils vs UptiP foils

Welcome to the forum! There are three cats(and one 18' tri), that I know of, now being sailed with various versions of a wand altitude control system:
1) Whisper,
2) Daro Valenza's experimental A Class Cat,
3) Vampire, that uses canted foils and retracts the windward foil like the Flying Phantom and GC32 do.
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What will be very interesting is to race any of these wand based boats with the Phantom or Nacra foilers using UptiP foils. The C Class "Off yer Rocker" used wands and was not fast compared to seahugging C Class boat so a race will tell us all a lot.

 

[reidhester]

Thanks for the welcome Doug. My wife and I've been multihull sailors since '83 and speed on the water has always been fun for us. We've been sans boat since '07 when we sold our F-31 UC but are considering how we would get back into it.