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Re: Strip: Positive Buoyancy
By:JohnAbercrombie
Date: 10/28/2016, 4:18 pm
In Response To: Re: Strip: Positive Buoyancy (Les Cheeseman)

For buoyancy I tape/tie together 2 pint UK, (approx 2.2litre) plastic milk cartons

Typo here- but no matter - 2 pints (Imperial) is a bit over 1L

Being of virtually square section, there is little space between them.

This to my mind makes them a safer and lighter option than a pair of air bags, at 0 cost.
I'm interested to hear what others think of this option.

Les:
That must leave a fair bit of 'empty space' around the (squarish) plastic cartons ?
Have you tested this system by capsizing the boat (near shore!) and filling the cockpit and other void areas with water?
After raising the front of the boat (the standard for an assisted rescue) and dumping the water out, how much water remains to be pumped (slowly) by hand pump? That's the real test of your arrangement.
I agree that a lot of smaller 'air containers' have a redundancy advantage over fewer air bags, but the air bags (if properly shaped) will fill more of the kayak interior.
BTW, the main danger (IME) to air bags is inflating them cold and then letting them heat up by putting the boat in the sun, not accidental puncture. If you have a strong boat, the air bag will blow a seam when the pressure gets too high.
The good news is that usually the seam can be resealed with a hot clothes iron.

Messages In This Thread

Strip: Positive Buoyancy
Steve Solomon -- 10/27/2016, 11:14 pm
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/27/2016, 11:35 pm
Re: Strip: Positive Buoyancy
Bill Hamm -- 10/28/2016, 12:09 am
Re: Strip: Positive Buoyancy
Justin -- 10/28/2016, 3:18 am
Re: Strip: Positive Buoyancy
Etienne Muller -- 10/28/2016, 6:14 am
Re: Strip: Positive Buoyancy
Robert W -- 10/28/2016, 6:40 am
Re: Strip: Positive Buoyancy
Etienne Muller -- 10/28/2016, 6:59 am
Re: Strip: Positive Buoyancy
Jaybabina -- 10/28/2016, 8:25 am
Re: Strip: Positive Buoyancy
Nick Schade - Guillemot Kayaks -- 10/28/2016, 7:44 am
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/28/2016, 9:50 am
Re: Strip: Positive Buoyancy
Les Cheeseman -- 10/28/2016, 3:05 pm
Re: Strip: Positive Buoyancy
Robert W -- 10/28/2016, 3:18 pm
Re: Strip: Positive Buoyancy
Les Cheeseman -- 10/28/2016, 3:28 pm
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/28/2016, 4:18 pm
Re: Strip: Positive Buoyancy
JohnAbercrombie -- 10/28/2016, 4:18 pm
Re: Strip: Positive Buoyancy
Nick Schade - Guillemot Kayaks -- 10/28/2016, 8:09 pm
Re: Strip: Positive Buoyancy
JohnAbercrombie -- 10/28/2016, 8:15 pm
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/28/2016, 10:18 pm
Re: Strip: Positive Buoyancy
Bill Hamm -- 10/29/2016, 12:59 am
Re: Strip: Positive Buoyancy *PIC*
John Messinger -- 10/28/2016, 4:26 pm
Re: Strip: Positive Buoyancy
Etienne Muller -- 10/28/2016, 5:54 pm
Re: Strip: Positive Buoyancy
Marc Upchurch -- 10/28/2016, 5:57 pm
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/28/2016, 10:36 pm
Re: Strip: Positive Buoyancy
Bill Hamm -- 10/29/2016, 1:03 am
Re: Strip: Positive Buoyancy
upchurchmr -- 10/29/2016, 7:33 am
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/29/2016, 8:43 am
Re: Strip: Positive Buoyancy
Rob Macks/Laughing Loon CC&K -- 10/29/2016, 11:12 am
Re: Strip: Positive Buoyancy
Bill Hamm -- 10/30/2016, 12:06 am
Re: Strip: Positive Buoyancy
Rob Macks/Laughing Loon CC&K -- 10/29/2016, 11:11 am
Re: Strip: Positive Buoyancy
JohnAbercrombie -- 10/28/2016, 8:11 pm
Re: Strip: Positive Buoyancy
Steve Solomon -- 10/28/2016, 11:01 pm
Re: Strip: Positive Buoyancy
Peter F Lord -- 10/29/2016, 6:13 am
Re: Strip: Positive Buoyancy
Randy -- 10/29/2016, 9:30 am
Re: Strip: Positive Buoyancy
Mike Bielski -- 10/29/2016, 11:32 pm
Re: Strip: Positive Buoyancy
drakenn -- 11/1/2016, 10:16 am