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Forum: Navigation 05-10-2015, 14:15
Replies: 17
Views: 5,672
Posted By PDA1
Re: DIY Tube Knot meter Plans ??

I'd be easy to make that gadget.
Forum: Navigation 05-10-2015, 12:04
Replies: 17
Views: 5,672
Posted By PDA1
Re: DIY Tube Knot meter Plans ??

I need an analog speed device because;

1- I want to use a device that doesn't require batteries.

2- The sailing I do now, with a small boat, doesn't need or require a GPS.

3- It's easier,...
Forum: Navigation 26-09-2015, 04:27
Replies: 17
Views: 5,672
Posted By PDA1
Re: DIY Tube Knot meter Plans ??

A Pitometer, which is what I think we have in mind is mentioned in Dutton's book; Navigation and nautical astronomy.

Here's more about it- https://en.wikipedia.org/wiki/Pitometer_log

Except...
Forum: Navigation 25-09-2015, 18:18
Replies: 17
Views: 5,672
Posted By PDA1
Re: DIY Tube Knot meter Plans ??

I have a wind speed meter like you mentioned made by Dwyer-
...
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