[C320-list] New Boat knocking noise

[Stephen Cox]

The rubber seals have to be replaced periodically which is an expensive
exercise - requiring haul out.  Anti-fouling them requires an alloy
compatible paint.  More projections underwater to catch lines.  Also the
concept of having such a large hole in the hull is not all that appealing.

Stephen Cox
Tegwen #1141

> 
> All,
> 
> This could all be avoided if Catalina used saildrives. Which 
> prompts me to ask, are there any inherent disadvantages with 
> saildrives (perhaps only cost)? They seem like a nice 
> solution in a lot of ways.
> 
> CRA
> Rosebud #882
>