RE: [Paddlewise] Foam vs Inflatable PFDs

From: Colin Calder <colin.calder_at_abdn.ac.uk>
Date: Thu, 28 Apr 2005 09:14:23 +0100
I think there are pros and cons to both foam and inflatables, but I choose
to paddle a sea kayak with a manual inflatable life jacket pretty much all
of the time. 

My reasons are:

First and foremost foam pfd's all impact on your forward stroke - that's why
marathon/sprint racers choose not to wear them.

Inflatable I find significantly more comfortable to wear. YMMV but I find
very little difference wearing an inflatable to not wearing a buoyancy aid
at all

In Scotland we have to be prepared for cooler temperatures/precipitation
more regularly than too much heat or humidity - and I would rather use
clothing designed for the purpose than a foam life jacket for thermal
insulation. When it is warm the advantage of the inflatable is clear.

If you do swim out of a sea kayak sea water is generally buoyant (unlike
aerated white water) and there is typically little need for buoyancy during
a rescue. 

I can swim better in an un-inflated life jacket than a foam pfd

There is no advantage to wearing a foam pfd for R&R rescue or rolls
(greenlanders for example choose to wear neither for rolling competition)

The only time I would imagine you would ever want to inflate a life jacket
would be if you wet exited and lost your boat and were awaiting a rescue by
a third party. This is the worst case scenario that every sea kayaker should
strive to avoid at all cost! If you did discharge a cylinder and needed to
use the inflatable jacket again on the same trip they can be inflated by
breathing into them - only a few breaths required. Inflatable life jackets
are however used universally in yachting - with cylinders available
worldwide.

In the worst case scenario of trying to survive a long swim without a boat
an inflatable life jacket holds an unconscious wearer face up out of the
water, pfds don't. 

The disadvantages:

You have to be conscious to manually inflate. However unconscious swimmer in
foam pfd drowns anyway.
In aerated water you would have to inflate for extra buoyancy, its not there
all the time. 
Inflatables require periodic inspection (ie inflate by breathing into them)
and a perhaps a replacement cylinder every few years

FWIW:
Until sufficient experience is gained to make an informed choice I would
recommend a foam pfd - always for novices learning to kayak in all
circumstances

I choose to wear a foam pfd while paddling ww rivers

HTH

Cheers

Colin
www.kayakscotland.com
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Received on Thu Apr 28 2005 - 01:14:39 PDT

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