Search found 11 matches

by Kevan
Sat July 6th, 2013, 8:46 am
Forum: General Board
Topic: Hello from North Wales.
Replies: 4
Views: 2924

Re: Hello from North Wales.

On behalf of the members, "Welcome aboard".
Sorry for the delay in acknowledging your message. John (the admin) is I believe still afloat but I am sure he would be interested in the status of Dora.
Cheers.
Kevan
by Kevan
Mon March 4th, 2013, 8:04 am
Forum: HELP ?
Topic: Cast Iron Keel vs Welded Steel Box
Replies: 1
Views: 1842

Re: Cast Iron Keel vs Welded Steel Box

I too have checked out this concept when reading George Buehler's book and contemplating a Riptide build (still on hold as I have bought another boat). I think though that I would chase the foundries a little harder and (with me providing the appropriate form in timber) get quotes for them to make t...
by Kevan
Sat April 2nd, 2011, 7:11 am
Forum: HELP ?
Topic: Building a new Eventide
Replies: 10
Views: 4100

Re: Building a new Eventide

My memory is functional but faulty. I recalled something akin to Steve's comment about 5-years proving the boats structural ability, and have chased it to ground again. It was actually in a Transport Canada specification(?) that I came across when looking for information on registering a boat in Can...
by Kevan
Thu March 31st, 2011, 3:33 am
Forum: HELP ?
Topic: Building a new Eventide
Replies: 10
Views: 4100

Re: Building a new Eventide

Fair enough response Steve, and certainly consistent with what I have heard elsewhere about "publicly available" plans. Being slightly askew myself I originally interpreted his inquiry as referring to meeting current design codes and registering the boat with the appropriate authorities. I...
by Kevan
Sun February 6th, 2011, 9:58 am
Forum: HELP ?
Topic: lug sail
Replies: 7
Views: 3642

Re: lug sail

Julio I was considering converting a Bermuda rig to a Ketch rig and in my research on the internet I stumbled across a suite of old Excel based executable files that design circular mast sections based on your input height etc. I see a note on the bottom of the dialog box that they use Skenes's and ...
by Kevan
Sat December 25th, 2010, 11:58 pm
Forum: HELP ?
Topic: Refitting cast Iron keel
Replies: 9
Views: 3742

Re: Refitting cast Iron keel

Hi there. This forum is to "ask the experts" so I wasn't intending to put my two cents worth in(!) but there isn't much feedback and I have been doing some reading of late in prep for my own build and had some ideas/comments. I am further emboldened by Billaboard's and your initial work mi...
by Kevan
Tue November 16th, 2010, 6:23 am
Forum: HELP ?
Topic: removing my bilge keels for improved windward performance
Replies: 6
Views: 5453

Re: removing my bilge keels for improved windward performance

I am certain you will have considerable feedback from the Eventide owners but I have just about finished analysing a Riptide for stability etc. and can confirm that the extra mass makes quite a difference to the stability numbers. Mind you the http://www.sailingusa.com formulae aren’t fussy about th...
by Kevan
Wed November 10th, 2010, 3:12 am
Forum: The Designs
Topic: Riptide performance - build tweaks
Replies: 6
Views: 3381

Re: Riptide performance - build tweaks

Pretty quiet! I can only assume that she is "perfect as designed". Seriously though, I know there are few Riptide owners and they may not have read the posting - although any comments from the YM plywood single chine boats would be welcome. I will however push on with the final design draw...
by Kevan
Fri November 5th, 2010, 4:32 am
Forum: HELP ?
Topic: Leaking hull,but not sure where,Riptide 31
Replies: 3
Views: 1854

Re: Leaking hull,but not sure where,Riptide 31

A humorous response comes to mind! But in all seriousness, without stating the obvious possibilities, one that "springs" to mind is that the lateral force on the bilge keels when under heavy way, may be too much for the connection to the hull. I note from the builder's page that there was ...
by Kevan
Sat October 30th, 2010, 10:31 am
Forum: The Designs
Topic: Riptide performance - build tweaks
Replies: 6
Views: 3381

Re: Riptide performance - build tweaks

James Thanks for the comment. I hadn't thought about the bilge keels, they seemed so simple, how could the be tweaked?!? I have had a quick search for Richard Hare/PBO/Bilge with little success. Any hints as to where I could find it? You're building a Waterwitch, yes? Proceeding well? If you're inte...
by Kevan
Sat October 23rd, 2010, 4:19 am
Forum: The Designs
Topic: Riptide performance - build tweaks
Replies: 6
Views: 3381

Riptide performance - build tweaks

Hello all! A few questions if I may. I have purchased MG’s Riptide drawings and am preparing detailed drawings to help through construction and planning (materials and costing). Having finished the basic drawings I checked the hydrostatics to see if it was as good a design thought. For a small cruis...

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