Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

Check your math...
By:Dan Caouette (CSFW)
Date: 1/8/2012, 6:14 am
In Response To: Re: Strip: Another Pic. (Greg New)

: Thanks for your reply Les. I was thinking that if I decide to do
: this that I would scale the entire design by some factor like
: 0.92. It would be pretty easy to reprint the station forms at a
: scaled factor (since I created the forms from Nick's book in a
: cad program) and then attach them to a shortened strongback
: according to the scaled dmensions. This would ensure that the
: original shape was retained but everything would be smaller.
: Since I believe the Guillemont is designed for a 250 lb load
: (paddler plus gear and boat weight) this should yield a boat
: that has a 230 lb capacity.

If you scale all the dimensions by 0.92 then the volume and displacement are changed by the CUBE of that scale:

0.92 for the width X 0.92 for the height X 0.92 for the length = 0.7787

Your 250# displacement just became about 195#.

It would be 230 if you only scaled one dimension (ie length).

Scaling can work. Just remember to take the three dimensions into account.

Messages In This Thread

Strip: Another Pic. *NM* *PIC*
les cheeseman -- 12/31/2011, 3:33 am
Re: Strip: Another Pic.
Etienne Muller -- 12/31/2011, 4:54 am
Re: Strip: Another Pic.
les cheeseman -- 12/31/2011, 6:31 am
Re: Strip: Another Pic. *PIC*
les cheeseman -- 12/31/2011, 7:02 am
Re: Strip: Another Pic.
Rob -- 12/31/2011, 7:21 am
Re: Strip: Another Pic.
les cheeseman -- 12/31/2011, 7:40 am
Re: Strip: Another Pic.
Ian Cummins -- 12/31/2011, 11:29 am
Re: Strip: Another Pic.
Randy Echtinaw -- 12/31/2011, 12:43 pm
Re: Strip: Another Pic.
les cheeseman -- 12/31/2011, 1:41 pm
Re: Strip: Another Pic.
Mike Savage -- 12/31/2011, 4:12 pm
Re: Strip: Another Pic.
Kirk Fredericks -- 12/31/2011, 6:15 pm
Re: Strip: Another Pic.
Kurt Maurer -- 12/31/2011, 6:58 pm
Re: Strip: Another Pic.
les cheeseman -- 1/1/2012, 3:20 am
Re: Strip: Another Pic.
Bill Hamm -- 1/2/2012, 2:28 am
Re: Strip: Another Pic.
les cheeseman -- 1/2/2012, 4:04 am
Re: Strip: Another Pic.
Greg New -- 1/5/2012, 10:13 am
Re: Strip: Another Pic.
les cheeseman -- 1/6/2012, 3:06 pm
Re: Strip: Another Pic.
Greg New -- 1/7/2012, 10:53 pm
Re: Strip: Another Pic.
les cheeseman -- 1/8/2012, 5:28 am
Check your math...
Dan Caouette (CSFW) -- 1/8/2012, 6:14 am