"Thom Stewart" wrote in message
...
The mast rotates from the vertical, reducing the effective height of the
sail during sailing.


The "effective height" may be reduced, but is the actual height reduced?

The Port Mayaca bridge on the St. Lucie Canal (at Lake Okeechobee) has 49 foot
clearance. Enterprising locals provide a boat heeling service, using plastic
oil drums on deck, which are filled with water. Will this work with a
catamaran?

-jeff