i was wondering, in a full displacement hull
(trawler) wich is the relation of the prop size in case of 1 or 2 engine
same diameter and almost half pitch
(let's say almost, not to have a 200% more power)
half diameter and same pitch
as the single
acording to me the second one, because in the 1st case half pitch would be double rpm
, no sense during cruise
, and a very strong pushing power from stop to 2-3 kts that is meaningless, not being a tug
what about you?
p.s. someone know a site where giving diameter, pitch and rpm
it calculate the required horse power?