Boat Building Forum

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Re: Launching: Launch Day Picture
By:Les Cheeseman
Date: 7/24/2010, 2:37 am
In Response To: Re: Launching: Launch Day Picture (G New)

: Les, That is beautiful. Great job!

: You mentioned that it is 15 feet and 6 inches. I am very curious,
: did you scale the design following the procedure in Nick's book?
: I want to build a Guillemot and I was thinking about using the
: equations in Nick's book to scale the plans back to 16 feet. I
: already did the calculations and made the spreadsheet, but I was
: somewhat concerned that the handling would be unpredictable if I
: changed Nick's design. So I am really wondering how this change
: worked out and what procedure that you followed to make the
: change?

: Thanks.

Thanks for the compliments. I scaled down the length by leaving the centre section at 12" but then reduced each successive section by 1/4"so the section lengths looked like;-
10" 10 1/4" 10 1/2" 10 3/4" 11" 11 1/4" 11 1/2" 11 3/4" 12" then the same this end! You will then need to rescale the end sections to suit and add up the sections to give you a new length for your strongback. I think I adjusted the curve above the sheer line to avoid too much of a "hook " to the line but I wouldn't sweat on it too much as it is above the waterline anyway so it's just a matter of what looks good to you. hope this is of use.
Cheers. Les Cheeseman

Messages In This Thread

Launching: Launch Day Picture *PIC*
Les Cheeseman -- 7/23/2010, 11:05 am
Re: Launching: Launch Day Picture
buck biscuit -- 7/24/2010, 11:04 pm
Looks great, Les! *NM*
Dave Gentry -- 7/24/2010, 7:54 am
Re: Launching: Launch Day Picture
G New -- 7/23/2010, 9:16 pm
Re: Launching: Launch Day Picture
Les Cheeseman -- 7/24/2010, 2:37 am
Re: Launching: Launch Day Picture
Ric -- 7/24/2010, 12:08 am
Re: Launching: Launch Day Picture
Les Cheeseman -- 7/24/2010, 9:48 am
Revised Guillemot
G New -- 7/25/2010, 12:56 am
Re: Launching: Launch Day Picture
rNuffer -- 7/23/2010, 11:48 am