Nobody?? Did some research myself.. Maybe should done that before asking ;). It seems degrading in thermoplastics as PE is quite some issue as...
On my F9XR trimaran I have a aluminium mast with a Tides Marine sailtrack made of UHMW. With the previous owner it has broken at the connection...
Didn't clinker-built viking ships use this as a passive principle? Once heard a story of a viking ship being faster than a modern monohull?
In that length the best pocket racer is a mini 6.50. If you want to build it yourself: Didi Mini Mk3 radius chine plywood Mini 650 boat plans...
Well, I'm just orienting on the problems of this boat. What I heard so far is that I should take care of it but it is not a major issue.
Thanks Angelique. Ah, I didn't consider a CF chainplate. I know the article (used it as inspiration for the stay attachment on my catamaran)....
The chainplate of a boat I might want to buy has a leaking forestay chainplate. What could be the cause for this? An innocent cause could be...
You mean this?? Vicprop - Propeller Calculator https://www.vicprop.com/calculator.htm
Well: she's going to be called Kermit after the most famous frog. That is: gecko... frog (kermit). So don't have much choice in colour ;). But Ad...
Hi BlueBell, also for you a happy New Year! Well, I have all kind of plans. No planning however. At the moment just focussing on finishing the...
Hi Ryan, Freeship isn't that difficult to learn. I learned it by trial, error and reading the manual. Entering a twin hull design doesn't add...
I think knowing the GZ curve is not enough. You have to compare it against a set requirements depending on the area of application. ISO 12217 is a...
@ Niclas, Kdc is for design category. Kdc=1 is for cat. A. Hull width at waterline is 0,55 m indeed... my foot is less wide... Safety factor...
@RX, different sheets for boards positions seems a good idea.
Hmm, I compared my calculations with a symetric daggerboard for a 40 ft bridgedeck cat from a well respected designer. It has a crown of 11 layers...
Rene: in your post #93, first line, between W and n: the x is x or a multiplier? I think last. This formula you mention is this the complete...
Rolling forces V2: speed of the tip through the water. At 1,6 meter 30 degrees is 0,8 meter side ways movement in 1,5 second. So max speed is...
@Niklas, all very interesting but I can't afford to have a look at it. After allmost one year my first hull still isn't finished. The engineering...
Preliminary daggerboard area is going to be 0,8 sqm. I've been thinking about forces by rolling: Rolling with two hulls in the water has the...
Yes I have. Had a quick look at it, though I used Larsson (which is based on ISO) for dimensioning the rudder stock and bearings. Rudder will be...
