SailNet Community - View Single Post - Lost at sea
Thread: Lost at sea
View Single Post
  #56  
Old 11-30-2011
PCP's Avatar
PCP PCP is offline
Senior Member
 
Join Date: Dec 2004
Location: Portugal, West Coast
Posts: 16,160
Thanks: 21
Thanked 95 Times in 79 Posts
Rep Power: 10
PCP will become famous soon enough
Quote:
Originally Posted by casey1999 View Post
When I first started sailing in 1980 I crewed on a boat from Annapolis to Antigua. We had only a sextant, a log and charts. In a storm for 3 days we could not take noon sites due to clouds, used DR. The log we used was a metal fully mechanical one hung from the stern rail and had about 100 feet of line to a propeller. A few weeks ago I was looking to buy one of these but no one seems to make them. Everthing I see is electrical and solid state. Any idea where you can buy a mechanical log like this?
I had one in my first boat. It was the most modern hardware it had. well, it only had that and a compass

I bought it in England but I guess that nobody is making them anymore because that was an expensive piece of equipment. Yes it was a precision mechanic device and as all mechanic complex things it would be much more expensive to build than an electronic one. Mine was a lot simpler but it was basically this:



It was called a knotmeter. This guys still make an inexpensive and much simpler version that works not with rotation but with water pressure :

orders

Regards

Paulo

Last edited by PCP; 11-30-2011 at 12:37 PM.
Reply With Quote Share with Facebook