Re: [Paddlewise] Being Seen At Night--LEDs etc

From: Alex Ferguson <a.ferguson_at_chem.canterbury.ac.nz>
Date: Thu, 08 Mar 2001 09:29:05 +1300
>The requirement currently in the US is just to have a white light handy...it
>need not be steadily on.

I often take, (that is on the occassions we have a night paddle), my 
bicycle strobe. You can buy them made by Cateye but I make them by using 
the flash from a disposable camera. The capacitor is reduced in size by 
x100 which allows for a fast flash rate. Reduce it a bit more and you'd get 
a faster flash. Runs off one AA. Actually we were give some 2 volt 
rechageable outdated cells a year ago and my main one is mounted in a clear 
plastic screw-top jar.

If there is a problem with night vision for the rest of the group, how 
about mounting on the top of a short mast in a shallow saucer?

 > What is at issue is what lighting scheme actually will work in places 
like New
 > York City, San Francisco etc. with lots of traffic and background light 
blotting out
 > the effectiveness of a small white light on a kayak.

Our local Coastguard have a strobe at the top of their mast, same as 
aircraft. At least the fast-strobe would be different from back-ground 
"clutter".

>  A possibility is to pick a strobe light not in current use although I do 
> favor
>using the orange strobe used to designate a surfacing submarine; imagine 
>how much that would frighten away motorboat traffic from a kayak! :-)

And Japanese fishing boats......

A coloured cover should be easy to fit to a strobe and partially opaque to 
drop the light output if necessary.

Alex
.
.
Alex (Sandy) Ferguson
Chemistry Department
University of Canterbury
New Zealand

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Received on Wed Mar 07 2001 - 12:29:43 PST

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