The effective aspect ratio of under-hull rudders is usually assumed to be twice the geometric aspect ratio due to the presence of the hull as a...
After a couple of years of reading and saving I've (sort of) finalised a basic design and just started building a hull. Layout and...
Many catamaran designers/manufacturers make much of the fact that their boats topsides and superstructure shape is carefully optimised (on a...
When is low hull freeboard too low? I am currently desiging a small sailing catamaran suitable for cruising, including offshore. Because it's a...
I am planning to build a variation on a square rig where yards are fixed to the mast for rotation, but raise and lower in tracks on the mast....
In a thread on the multihull forum a side discussion started on ways to improve boating safety in general, and the effectiveness of lifejackets...
Hi folks, I want to build a catamaran suitable for Arctic and Antarctic cruising. The tested choice for icy waters is steel, but this is...
