Thanks Phil for your input. Just to clarify: the old engine ran at 1500rpm through a 2:1 gearbox to the prop -- therefore at 750. The new motor...
I switched motors for many reasons: The old motor was partially seized; very corroded on the exterior; a 1964 Yanmar NTS85 is now too hard for...
To abcdefg: Good idea. What is the method for weighing something you can only get under one end of at a time? Is it done by weighing each end and...
Yobarnacle: At estimated 1500 lbs the calculator gives me a 14.7" x 13.8", in real life a 15" x 14". For 2000lbs it gives 14.7" x 12.8", real size...
To Mr Efficiency. I'm only a newbie at this stuff but, from what I have read and via the various online calculators I have been exploring, yes,...
To Par. When a boat's draft is mentioned for calculations, is this maximum draft at lowest point of belly (I know to discount the keel depth) or...
Yeah, get your points. The hull is cedar, so lightish. Very sharp bow. Waterline is only 6" above the prop. Sits quite high in the water. So .....
Thanks for your offer TANSL. Yeah, I played with cross sections and mathematics for hours and gave up, believing there would be some easier...
PS ... this is not a trailer-able boat so I can't take it over a weighbridge. It's now upside side down being stripped for epoxy glassing, new...
Huh? But I DON'T KNOW the weight of the boat. Yes, the weight of people, plus engine, plus beer I know, but the hull timber weight I don't. But...
Esteemed Boaties. I am trying to calculate the displacement of my 19ft putt putt boat to thence calculate the best prop diameter and pitch...
