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Doug Lord

Member Since 25 Dec 2003
Offline Last Active Today, 02:09 AM
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Topics I've Started

Quant 23

18 May 2016 - 05:49 PM

This is the first production boat foiling for the first time. Illustrates the light air foiling capability of the boat: around 4kts over the deck  7-8 at the top of the rig. Note where the crew is sitting.

Picture from Quant Boats(Michi):

 

2ry1rt4.jpg


Stand Up Paddleboard-on foils!

02 May 2016 - 12:45 AM

From The Foiling Week:


NW 55

22 April 2016 - 12:35 AM

This is the first large cat I know about to adopt "Z" foils as now used on A Cats. Mainly for "skimming" as I understand the article. If it were to foil it would probably require active manual rake control-at least on the windward foil to zero out lift and/or create downforce. It will be interesting to see how this develops.
 
15p1idt.jpg
 

Foils-single tubercle explained

06 April 2016 - 05:13 PM

First posted by Manfred on boatdesign.net(as far as I know) . Can't translate but the sketch makes sense. See below for the video showing a glimpse of this at 33 in:

 

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Summary from Manfred at boatdesign.net : "The tubercle has to avoid the sudden and total loss of lift at the foil."

 

 

 

11caa8l.jpg


Aeronamics #2

03 April 2016 - 03:42 PM

Interesting, especially the foils: http://aeronamics.com/
 
LOA 4.25m/13.9'
Beam-1.8m/5.9'
Beam-leeward foil deployed: 3.2m/10.5'
weight, all up: 55kg/121lb
Takeoff 6kts true wind
target: 8000euro intro price (about $9100)
 
r6wbvn.png