[Gil]

Originally Posted by rbeach84

Gil, I found some pix on the web (boat for sale site) that show the engine inside the 'cabin' area - apparently using a straight shaft without the reduction reversal as depicted in the Diana drawings. Looking at the range of exhaust stack locations, I'd say there is a bit of variety. An engine in the back deck would be easy access but more exposed whereas one in the cabin not so much, providing heat easily but perhaps a CO hazard... design compromises to be made for the engine location, plus how big it is physically.

Great drawings/ 3D CAD, BTW!

Fascinating!

Thanks rbeach84.

Looking around the internet it's fairly evident there is a lot of making do with what you've got or can easily get.

There's a definite lean toward diesel engines. Operating cost, the additional fire hazard of gasoline, dependability and reliability of diesel engines make them a natural choice. Besides after World War II, inexpensive surplus diesel engines swept the market putting the specialized marine engine companies out of business. With all this in mind it's beginning to appear that Detroit Diesel is the most probable. Haven't researched the gear reduction unit yet...,

+Gil