Join Date: Dec 2008
Location: Calgary, AB, Canada
Thanked 72 Times in 67 Posts
Rep Power: 8
I pull the knotmeter quite often. Usually it is just to show folks how to do it. Sometimes to clean it.
I agree with Faster; the knotmeter is better for sail trim, if you are into that sort of thing. The GPS uses average speeds over a number of waypoints, the knotmeter is more instantaneous.
In new designs, there is a flap inside the the tube, that prevents a huge amount of water from getting in. It is not prefect, but it does give you peace of mind.
ISPA Yachtmaster Ocean Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)