Again to quote Glynn Guest’s Sabina he simply had steering and a blunt bow.
I think some of the answer to your question lies in the hull shape of the 900mm hull. Sabina is shorter and chunkier … but if you have a better hull proportion like say 1:6 or so you will have the power. That’s what I’m currently building and that is the least of my concerns as I fit an old Mamod style horizontal boiler and single ossie into it.
With this set-up it might be advisable to fly the ‘Restricted ability to manouver’ signals from your mast … assuming others would know what they mean.
