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Not a big change . . .
By:ancient kayaker
Date: 10/8/2012, 7:14 pm
In Response To: Other: Copywrite Advise: Wee Lassie II (John Messinger)

: I am starting a Wee Lassie II, the plans coming from the drawings
: in the book "featherweight BOATBUILDING" BY "Mac
: McCarthy", Sheridan Books, Ann Arbor, MI, 1996.

Wee Lassie is my favorite boat! I got the original WL data on drawing from from The Adirondack Museum for about US$10 a few years ago. No doubt it's still available. It gives the original lines and construction data and of course that's a lapstrake build with offsets given to the inside plank edges. I wanted to recreate it in marine ply as a flush chine build. Not S&G though: I wanted to use the WL build to try out a new building method I had dreamt up before I got sick.

It became an interesting computer undertaking to get the design into FreeShip. The FreeShip exercise and consequent hydrostatic calculations soon identified the problem of size: the WL wasn't designed for the 200# that I had bloated up to during my years of reduced activity. 155-175# might get her to float on her probable lines - although the waterline wasn't given - and I might have got away with my 185# at the start of the exercise.

So it was necessary to stretch her a little - not a big change. Then I wondered if I should lower the aft sheer to counter the WL’s known tendency to windsock - not a big change. And I too started to wonder about asymmetry . . . that's the problem with computers! And let’s be honest: if and when I build her the final dimensions will be whatever it takes to get her together.

Messages In This Thread

Other: Copywrite Advise: Wee Lassie II
John Messinger -- 10/7/2012, 7:22 pm
Re: Other: Copywrite Advise: Wee Lassie II
Charlie -- 10/7/2012, 8:11 pm
Re: Other: Copywrite Advise: Wee Lassie II
Ian Cummins -- 10/7/2012, 8:43 pm
Re: Other: Copywrite Advise: Wee Lassie II
John Messinger -- 10/8/2012, 11:50 am
Not a big change . . .
ancient kayaker -- 10/8/2012, 7:14 pm