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Re: S&G: Ultralight construction
By:Stephen Troy
Date: 8/16/2012, 11:54 am
In Response To: S&G: Ultralight construction (Raymond)

I think Robert Pruden has gotten some sub-30 pound S&G boats. Some techniques shared here:
http://www.kayakforum.com/cgi-bin/Building/index.cgi/md/read/id/189921/sbj/s-g-lightweight-layup/
http://www.kayakforum.com/cgi-bin/Building/index.cgi/md/read/id/200643/sbj/s-g-a-new-build-begins-to-take-shape/

Carbon cloth tends to not save weight when you're doing hand lay-ups

: I completed a Shearwater 16 coming in at 40 lbs . This is still
: heavy for my daughter 5:3 , 100 lbs to lift on to a car.

: Looking on the internet I came across Betsie Bay Kayaks where there
: is a 16 ft kayak at 28 lbs . Expensive .
: I was thinking of building her a Shearwater 14 and aiming for below
: 30 lbs.

: To achieve this weight I was thinking of the following:
: Using 3mm Okume rather than 4 mm
: Sheathing the boat in Carbon twill 4.7 oz. Actually I like the look
: of Carbon and the weave is very attractive and I plan varnishing
: the carbon. Will this save weight .? cost is not a factor here ,
: just weight saving
: Alternatively using 4oz S Glass satin cloth on the outside , this
: would be painted with linear polyurethane.
: Eliminating glassing the interior , only using glass at the seams .
: Making the cockpit coaming of carbon
: Eliminating endpours
: Judicious and carful use of resin.
: I understand that S glass is 25% stronger than E glass, and that
: Carbon is 100%stronger than E glass but consumes more resin(
: weight)
: Could a 30 lb weight be achieved ?
: Opinions of contributors would be greatly appreciated.

Messages In This Thread

S&G: Ultralight construction
Raymond -- 8/16/2012, 10:59 am
Re: S&G: Ultralight construction
Paul G. Jacobson -- 8/16/2012, 11:51 am
No cloth
Jay Babina -- 8/16/2012, 3:48 pm
Ultralight
Raymond Pilot -- 8/17/2012, 2:26 pm
Re: Ultralight
ancient kayaker -- 8/17/2012, 6:17 pm
Re: Ultralight
Paul G. Jacobson -- 8/19/2012, 4:11 pm
Re: No cloth
James -- 8/25/2012, 8:41 pm
Re: No cloth *PIC*
ancient kayaker -- 8/25/2012, 9:39 pm
Re: No cloth
Bill Hamm -- 8/28/2012, 1:55 am
Re: No cloth *PIC*
Yostwerks -- 8/28/2012, 9:07 am
Re: No cloth
ancient kayaker -- 8/28/2012, 5:38 pm
Re: No cloth *PIC*
Yostwerks -- 8/29/2012, 9:07 am
Re: No cloth
ancient kayaker -- 8/29/2012, 9:44 am
Re: No cloth
Yostwerks -- 8/29/2012, 10:07 am
Re: No cloth
Bill Hamm -- 8/29/2012, 3:17 am
Re: No cloth
Yostwerks -- 8/29/2012, 9:21 am
Re: No cloth
Bill Hamm -- 8/28/2012, 1:57 am
Re: S&G: Ultralight construction
Stephen Troy -- 8/16/2012, 11:54 am
Re: S&G: Ultralight construction
John Abercrombie -- 8/16/2012, 12:06 pm
Re: S&G: Ultralight construction
dave g -- 8/16/2012, 10:17 pm
Re: S&G: Ultralight construction
Greg H -- 8/16/2012, 1:32 pm
Re: S&G: Ultralight construction
John Abercrombie -- 8/16/2012, 2:09 pm
Re: S&G: Ultralight construction *PIC*
Bryan k -- 8/16/2012, 2:52 pm
Re: S&G: Ultralight construction
Stephen Troy -- 8/16/2012, 3:48 pm
Re: S&G: Ultralight construction
Paul G. Jacobson -- 8/19/2012, 4:25 pm
Re: S&G: Ultralight construction
Stephen Troy -- 8/19/2012, 7:34 pm
Re: S&G: Ultralight construction
Bill Hamm -- 8/20/2012, 2:25 am
Re: S&G: Ultralight construction
ancient kayaker -- 8/20/2012, 2:59 pm
Re: S&G: Ultralight construction
John Abercrombie -- 8/20/2012, 8:55 pm
Re: S&G: Ultralight construction *PIC*
Jeff Horton -- 8/16/2012, 3:04 pm
Re: S&G: Ultralight construction
Kurt Maurer -- 8/16/2012, 8:29 pm
S-O-F time!
Rob Macks/Laughing Loon CC&K -- 8/16/2012, 3:58 pm
Re: S-O-F time!
Bill Hamm -- 8/20/2012, 2:28 am
Library :) *NM*
Rob Macks/Laughing Loon CC&K -- 8/20/2012, 7:25 am
3 new at $999 !
Bill Hamm -- 8/20/2012, 2:29 am
Re: S&G: Ultralight construction
ancient kayaker -- 8/16/2012, 4:19 pm
Re: S&G: Ultralight construction *PIC*
Marc Upchurch -- 8/16/2012, 6:22 pm
Re: S&G: Ultralight construction
Bill Hamm -- 8/20/2012, 2:30 am
Re: S&G: Ultralight construction *PIC*
Allan -- 8/16/2012, 11:01 pm
Re: S&G: Ultralight construction
Brian Nystrom -- 8/17/2012, 6:49 am
Re: S&G: Ultralight construction
Bill Hamm -- 8/20/2012, 2:21 am
Re: S&G: Ultralight construction
Alex Ferguson -- 8/22/2012, 5:09 am
Re: S&G: Ultralight construction
Yostwerks -- 8/28/2012, 9:31 am
Re: S&G: Ultralight construction
Alex Ferguson -- 8/28/2012, 6:15 pm
Re: S&G: Ultralight construction
Alex Ferguson -- 8/28/2012, 6:18 pm
Re: S&G: Ultralight construction
Niven Paine -- 8/28/2012, 10:01 pm