Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors
  #61  
Old 03-27-2012, 09:08 PM
Doug Lord's Avatar
Doug Lord Doug Lord is online now
Flight Ready
 
Join Date: May 2009
Rep: 1362 Posts: 13,709
Location: Cocoa Beach, Florida
Quote:
Originally Posted by Corley View Post
Interesting video of Formula 40 racing from 1986. Link posted up by "northernrainbow" the current owner of the foiler "triton" shown in the video.
==============
Thanks, Corley...
__________________
yes, it is a Revolution
WOLF-daughter of fire arrow
Reply With Quote
  #62  
Old 03-28-2012, 12:18 AM
Gary Baigent Gary Baigent is offline
Senior Member
 
Join Date: Jul 2005
Rep: 509 Posts: 2,851
Location: auckland nz
Excellent find, Corley - Formula 40, a bit too far ahead of its time ... but now carried over to Extreme 40's and AC 45's. The Thompson Triton looked great to my biased eyes.
Reply With Quote
  #63  
Old 03-28-2012, 06:57 AM
redreuben redreuben is offline
redreuben
 
Join Date: Jan 2009
Rep: 349 Posts: 1,468
Location: Beaconsfield Western Australia
Got to say, I'm loving this thread !!!
RR
Reply With Quote
  #64  
Old 03-28-2012, 02:03 PM
Doug Lord's Avatar
Doug Lord Doug Lord is online now
Flight Ready
 
Join Date: May 2009
Rep: 1362 Posts: 13,709
Location: Cocoa Beach, Florida
Quote:
Originally Posted by Gary Baigent View Post
Excellent find, Corley - Formula 40, a bit too far ahead of its time ... but now carried over to Extreme 40's and AC 45's. The Thompson Triton looked great to my biased eyes.
===============
Gary, do you(or anyone) happen to have a picture of Tritons foils?
__________________
yes, it is a Revolution
WOLF-daughter of fire arrow
Reply With Quote
  #65  
Old 03-28-2012, 04:10 PM
Gary Baigent Gary Baigent is offline
Senior Member
 
Join Date: Jul 2005
Rep: 509 Posts: 2,851
Location: auckland nz
This is Adrian Thompson's Formula 40 Promocean. Either Triton is a sistership or else there was a rename. Not sure about that. Maybe someone else knows. The second jpeg is Promocean with the foils removed; I read somewhere that the boat was a dog without them. Anyone else know the history?
Attached Thumbnails
Historical multihulls-promocean1.jpg  Historical multihulls-promocean2.jpg  Historical multihulls-promocean3.jpg  

Reply With Quote
  #66  
Old 03-29-2012, 01:23 AM
HASYB HASYB is offline
Senior Member
 
Join Date: Jun 2011
Rep: 143 Posts: 310
Location: The Netherlands
There's a little in a thread at The Multihulls Archives "Some Old Formula 40 Video" in wich the current owner of Triton answers a few questions.
Also a bit at http://www.histoiredeshalfs.com/50%2...s%20multis.htm
Reply With Quote
  #67  
Old 03-29-2012, 11:58 PM
Corley's Avatar
Corley Corley is offline
epoxy coated
 
Join Date: Oct 2009
Rep: 826 Posts: 3,472
Location: Melbourne, Australia
There is so much multihull racing history recorded on VPLP's news page that it's easier to post a link for everyone to browse at their leisure.

vplp news page
__________________
Multihull Yacht Club of Victoria
https://www.facebook.com/MultihullYachtClubOfVictoria
blog/projects http://trimaranproject.blogspot.com.au/
Reply With Quote
  #68  
Old 03-31-2012, 11:59 AM
Sand crab Sand crab is offline
Junior Member
 
Join Date: Feb 2011
Rep: 23 Posts: 92
Location: Montana
Quote:
Originally Posted by Corley View Post
Another designer who drew early trimarans that looked impressive and sailed beautifully was Jay Kantola not much around in terms of information on him but he drew some nice tri's. There is some brief mention of his designs in Richard Harris's Racing and Cruising Trimarans.

http://www.angelfire.com/extreme3/multihull/
Here's a Kantola 34? on CL. Looking well kept for a 1979. Looks like it's for sale by the original builder!
http://orangecounty.craigslist.org/boa/2861214675.html
Reply With Quote
  #69  
Old 03-31-2012, 03:49 PM
Richard Woods's Avatar
Richard Woods Richard Woods is offline
Woods Designs
 
Join Date: Jun 2006
Rep: 1244 Posts: 2,012
Location: UK, USA and Canada
I sailed against Promotion and thought it was a dog, as did everyone else, it was certainly the slowest boat racing. I remember the publicity said something on the lines of "buy this boat, it is the fastest F40, or your money back'. Even with that incentive no one did.

Promotion and Triton were the same boat. I think it had another name as well

Richard Woods of Woods Designs

www.sailingcatamarans.com
Reply With Quote
  #70  
Old 03-31-2012, 03:55 PM
Doug Lord's Avatar
Doug Lord Doug Lord is online now
Flight Ready
 
Join Date: May 2009
Rep: 1362 Posts: 13,709
Location: Cocoa Beach, Florida
Quote:
Originally Posted by Richard Woods View Post
I sailed against Promotion and thought it was a dog, as did everyone else, it was certainly the slowest boat racing. I remember the publicity said something on the lines of "buy this boat, it is the fastest F40, or your money back'. Even with that incentive no one did.

Promotion and Triton were the same boat. I think it had another name as well

Richard Woods of Woods Designs

www.sailingcatamarans.com
==================
Richard, Gary said the foils were removed at some point-did Promocean have foils when you raced against it?
__________________
yes, it is a Revolution
WOLF-daughter of fire arrow
Reply With Quote
  #71  
Old 03-31-2012, 04:46 PM
Gary Baigent Gary Baigent is offline
Senior Member
 
Join Date: Jul 2005
Rep: 509 Posts: 2,851
Location: auckland nz
If Promocean/Triton was a dog (with or without the inverted Y foils? - I would imagine it would be near powerless with just the small floats) then the other very similar F40, the Marc Lombard Region NPdC, would also have been a dog ... yet this same boat is the renamed Fildou today ... and I don't think it is a slow boat, see jpeg. Also, of course, Adrian Thompson later designed We/Sebago; a superior wing mast rigged (compared to Promocean's fixed version), longer and lighter, refined version of Promocean; not a barker either imho.
Foil boats without foils are not a good solution; I remember the early Derek Kelsall Azulao OSTAR foiler sailed by Nick Clifton - the foils were removed - just asking for trouble; it capsized.
The world's fastest yacht, Hydroptere, sailing without foils would also be a disaster.
Fildou at Golden Oldies regatta, We/Sebago, an early Lombard foiler design, never built, but interesting.
Attached Thumbnails
Historical multihulls-f-40-pioneer-fildou.jpg  Historical multihulls-copy-we.jpg  Historical multihulls-lombardfoiler.jpg  

Reply With Quote
  #72  
Old 03-31-2012, 05:15 PM
Doug Lord's Avatar
Doug Lord Doug Lord is online now
Flight Ready
 
Join Date: May 2009
Rep: 1362 Posts: 13,709
Location: Cocoa Beach, Florida
Quote:
Originally Posted by Gary Baigent View Post
If Promocean/Triton was a dog (with or without the inverted Y foils? - I would imagine it would be near powerless with just the small floats) then the other very similar F40, the Marc Lombard Region NPdC, would also have been a dog ... yet this same boat is the renamed Fildou today ... and I don't think it is a slow boat, see jpeg. Also, of course, Adrian Thompson later designed We/Sebago; a superior wing mast rigged (compared to Promocean's fixed version), longer and lighter, refined version of Promocean; not a barker either imho.
Foil boats without foils are not a good solution; I remember the early Derek Kelsall Azulao OSTAR foiler sailed by Nick Clifton - the foils were removed - just asking for trouble; it capsized.
The world's fastest yacht, Hydroptere, sailing without foils would also be a disaster.
Fildou at Golden Oldies regatta, We/Sebago, an early Lombard foiler design, never built, but interesting.
================
Gary, whats interesting to me about these older boats(and your newer boat and my DF18), designed with ama foils but no main hull foils, is that with a very short ,low buoyancy ama the foils have to be designed really carefully: the foil/ama combo has to be matched pretty closely to whatever the designers max speed/RM is. Otherwise IF the ama/foil combo developed too much lift and allowed the main hull to fly there would be zero pitch control or very, very little. In other words, some degree of main hull immersion is essential for pitch control on this type of foil assisted tri. Do you agree with that assesment?
__________________
yes, it is a Revolution
WOLF-daughter of fire arrow
Reply With Quote
  #73  
Old 03-31-2012, 09:36 PM
Gary Baigent Gary Baigent is offline
Senior Member
 
Join Date: Jul 2005
Rep: 509 Posts: 2,851
Location: auckland nz
Yes, and also maybe; the T rudder provides pitch stability because it is "locked in" through speed through water - but no rudder foil and yes, there will be pitch problems if the float foils develop too much lift.
The long float trimarans with or without foils, handle large waves extremely well and provide a more stable ride - no doubt about that.
We have to thank Hydroptere team for showing what can be achieved with small floats/wide spread foil/rudder platforms. Still at 60 knots peak boat speed and savage winds ... still things to learn.
Reply With Quote
  #74  
Old 04-01-2012, 07:58 AM
caiman caiman is offline
Junior Member
 
Join Date: Dec 2008
Rep: 57 Posts: 72
Location: Wales
Hi
Some pics of the Barmouth to Fort William Three Peaks Yacht Race before the comittee decided to live firmly in the past,and ban multies from the race.Don't know the exact date,probably 88,but definatly pre 1989.I actually managed to get a taz on Castlemain XXXX,first(and only so far) go on a big Cat.It is a bit scary that it's taken me 25 odd years to buy my own Tri !!!.Doug-hope the pic of the foil is usefull.
Cheers
Attached Thumbnails
Historical multihulls-qab-xxxx-small-.jpg  Historical multihulls-alien-small-.jpg  Historical multihulls-three-legs-man-small-.jpg  

Historical multihulls-triton-small-.jpg  
Reply With Quote


  #75  
Old 04-01-2012, 09:16 AM
Doug Lord's Avatar
Doug Lord Doug Lord is online now
Flight Ready
 
Join Date: May 2009
Rep: 1362 Posts: 13,709
Location: Cocoa Beach, Florida
Quote:
Originally Posted by caiman View Post
Hi
Some pics of the Barmouth to Fort William Three Peaks Yacht Race before the comittee decided to live firmly in the past,and ban multies from the race.Don't know the exact date,probably 88,but definatly pre 1989.I actually managed to get a taz on Castlemain XXXX,first(and only so far) go on a big Cat.It is a bit scary that it's taken me 25 odd years to buy my own Tri !!!.Doug-the hope pic of the foil is usefull.Cheers
==========================
Yes-thanks very much....
__________________
yes, it is a Revolution
WOLF-daughter of fire arrow
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
xyz/360' views inside several historical ships. Squidly-Diddly Boat Design 2 06-07-2010
02:44 PM 
Trailerable Multihulls JCD Multihulls 333 09-21-2009
07:30 PM 
Waller Multihulls petee Multihulls 3 11-30-2007
06:00 PM 
Juan K on multihulls in AC Gary Baigent Multihulls 0 08-27-2007
11:24 PM 
Historical Keelboats Archive Boat Design 1 06-12-2001
03:27 AM 

Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.

All times are GMT -5. The time now is 02:33 PM.


Powered by: vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2017 Boat Design Net