High Performance MPX Foil/Self-righting Trimaran-The Test Model

Fire Arrow Foil System-first of its kind on any trimaran! Elements developed first by Fire Arrow include:
1) the first trimaran in history to use uptip ama foils,
2) the first trimaran in history to use a single wand controlled main foil capable of downforce,
3) the first trimaran in history to use Two Stage Amas.

 

Shshshsh just leave him alone in his own little world and no harm done.

 

Correct. I made a mistake checking his excruciatingly long non-building progress - should have continued ignoring him, silly, meaning both of us.

 

WOLF daughter of fire arrow - Aero package*, hydroturf in cockpit, name on curved piece:
* adjustable flap on each side of rear cross and spray guard/fixed leading edge on each side of forward cross

 

Fire Arrow-- Foilers! Newsletter Interview in 2014 by Fred Monsonnec-French and English:
Doug Lord – Foilers ! https://foils.wordpress.com/tag/doug-lord/

Note: 17 comments-see upper left corner under Freds picture and click.....French

 

INEOS Monofoiler/Trimaran flying really fast: AC 36 Foiling Monohulls https://www.boatdesign.net/threads/ac-36-foiling-monohulls.59160/page-31#post-835654 post 459

 

Thank goodness it was in French

 

And English--which you'd know if you actually read it!!

 

WOLF daughter of fire arrow - These pictures show the new sliding single seats that allow the crew to move outboard 1.75'. Also shown is the aero package consisting of two adjustable flaps off the aft cross and a spray guard/leading edge off the forward cross. This package also includes the mast step and endplate for the forward extension of the main foot. The hydroturf for the cockpit sole is also shown. Lots of details still to be done but close to the end:

 

Fire Arrow Foil System- Macif uses the basic foil system pioneered first on the Fire Arrow Test Model. There are now 5 trimarans using the basic Fire Arrow Foil System including Fire Arrow-and maybe 6 or 7 will be WOLF!( Maserati, Gitana 17, Banque Pop and Macif)

Macif Ultim Trimaran- to be relaunched in July 2018 https://www.boatdesign.net/threads/macif-ultim-trimaran-to-be-relaunched-in-july-2018.60521/ post #5
Macif main foil/ picture from Macif facebook/ © Arnaud Pilpré / Macif

 

WOLF daughter of fire arrow-- More changes thanks to the sliding seat. Upwind sail area has been increased from 148.8 sq.ft. to 167 sq.ft.. CE is raised from 12.42' to 14.92'(on foils) with a max pressure of 1.79lb per sq.ft. at a RM of 4460ft.lbs.. A little better max pressure than an F18 with 2 180lb crew on trapezes flying a hull(1.53lb/sq.ft).
Target boat weight is 190lb . Max crew weight 220lb for best performance. Max daysailing crew weight 220+130=350lb. Sailing/foiling weight: 410-540lb. At 410lb sail loading is 2.46lbsq.ft. upwind. With a 100sq.ft asy spin/screecher, sail loading is 1.53lb.per sq.ft.. Much better than a Moth with a 180 lb crew which is about 2.86lb./sq.ft..

 

Memorable quote from JG Baker, Designer and Builder of the Monitor foiler in the 1950's:
" The main need is to lower the wind velocities required for flying in order to increase the opportunities for high speed travel."

As true today as it was back then!!!!

from the paper below:

 

WOLF daughter of fire arrow-- Mock up of the rig. New sail area mentioned in previous post reflected in these pictures:

 

This is my first time seeing this tread, and I've only skimmed the beginning and end pages a bit but going to comment anyway.

I really like the documentation and creative process shown, the trials, experiments and refinements. The craft is cool too, and the fun names give it a life of it's own.

My own experiments with other craft (hovercraft) pale by comparison, I can relate to it at some level though.

I don't understand any attempt to ridicule but I guess there are many levels of self entertainment.

Safe sailing.

 

Thanks ,Kach. Appreciate your comments! Ridicule is a reaction of some humans when they don't understand something-it's part of the process of introducing new technology.