It may be of some help to phone Castle Marine 01286 674322 .They have a good site which calculates prop dia/pitch for power boats, but it does not include M/Y, they supply props so should be able to help.
mate and i where interested in very nice trawler yacht only to find it was a self build ,could not fault build quality. advised by other friend to walk away problems about part 1 reg and vat receipt, difficult to get finance or travel abroad with it
Gas, propane or calor must be vented overside NOT stored in board, unless in a vented locker.
Air consists of 78% niitrogen 21% oxygen and 1% noble gasses it supports life in that state and is not dangerous. Add any of Calor/propane through a leak, it being heavier than air will settle at the...
At a meeting of that well known tribe weusters, fishimg came up not game fishing,but the old long line, small purse net,lobster/crab pot,etc not for comercial gain, but to fill the fridge. A young KIA interupted our musings by declaring we where commiting "seriouse offences"as it was in breach...