Join Date: Dec 2008
Location: Calgary, AB, Canada
Thanked 71 Times in 66 Posts
Rep Power: 8
There is a book called Sail Power that I think is the best.
If you are thinking of Wallace Ross, I agree. It is out of print I believe. Amazon has a new one listed for $237 (ouch), but used ones are less.
I also like the North Fast Course, They used to supply a device called a Sailscope, which has not been available for a decade. I use one to teach draft depth and position.
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)