Re: [Paddlewise] Wind Wave Calculator Plus Current Plus Wind = Dead Reckoning Navigation

From: Fred T, CA Kayaker <cakayak_at_mindspring.com>
Date: Sun, 29 Oct 2000 22:14:51 -0800
A fun site, Larry.

When planning an instrument flight plan we used to use (some still do, but 
computers are working wonders for some) a "Flight Computer" that had a 
circular slide rule on one side and on the other a way to calculate drift 
and ground speed from known winds at a specific altitude depending on 
direction of travel and True Air Speed.   I was looking for my old Flight 
Computer = E6B or Whiz Wheel, as we called it, and want to play with it to 
see if the same could be calculated for a kayak given known wind conditions 
and currents.  Has anyone ever done something like this?

There are some excellent chapters in "Fundamentals of Kayak Navigation" by 
David Burch, which provide the underlying formula for the 
calculations.  This doesn't provide a field expedient means for calculating 
drift correction or Velocity Made Good in order to come up with Course to 
Steer and Estimated Speed to get to ETE or ETA when planning.  He does 
provide some means for adjusting  course  to compensate for currents and/or 
winds using piloting.  Of course, there is always a GPS, right?

Fred




  At 07:48 PM 10/29/2000 -0500, Larry Bliven wrote:
>are there other sites are folks using for wave info?
>
>bye bye bliven


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Received on Sun Oct 29 2000 - 23:23:02 PST

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