AndyV Posted October 29, 2016 Report Share Posted October 29, 2016 Can anyone tell me what size prop I would need with this engine in a 50ft narrowboat? I want to be sure I have enough power for rivers! ? Link to comment Share on other sites More sharing options...
mrsmelly Posted October 29, 2016 Report Share Posted October 29, 2016 Hi Assuming regularily serviced I would think an 18 in square would suffice. There will be SIGNIFICANT torque so ensure you have at least a prm 500 box. Cheers Tim Link to comment Share on other sites More sharing options...
Jrtm Posted October 29, 2016 Report Share Posted October 29, 2016 If your trying to compete with enterprise you need a 5 or 6 cylinder lump! Link to comment Share on other sites More sharing options...
kingswood Posted October 29, 2016 Report Share Posted October 29, 2016 lol Link to comment Share on other sites More sharing options...
AndyV Posted October 30, 2016 Author Report Share Posted October 30, 2016 With that engine I could almost compete with the starship Enterprise! Link to comment Share on other sites More sharing options...
Jrtm Posted October 30, 2016 Report Share Posted October 30, 2016 You cant use it im afraid h&s wont let you not flywheel protection! Link to comment Share on other sites More sharing options...
Taslim Posted October 30, 2016 Report Share Posted October 30, 2016 I'm not well up on props so can't comment on that but my concern would be if it has enough grunt to keep the leasure batterys topped up? Link to comment Share on other sites More sharing options...
Murflynn Posted October 30, 2016 Report Share Posted October 30, 2016 you might as well get a properly sized engine in the first place Link to comment Share on other sites More sharing options...
mrsmelly Posted October 30, 2016 Report Share Posted October 30, 2016 you might as well get a properly sized engine in the first place wärtsilä-50df-specifications--information--dimensions-226.jpg Dont be silly that is NOT marinised The op has a Lister Blackstone proper marine engine. Tim Link to comment Share on other sites More sharing options...
Jrtm Posted October 31, 2016 Report Share Posted October 31, 2016 There was a submarine engine around for sale not so long ago. Link to comment Share on other sites More sharing options...
Mikexx Posted October 31, 2016 Report Share Posted October 31, 2016 Can anyone tell me what size prop I would need with this engine in a 50ft narrowboat? I want to be sure I have enough power for rivers! Now that is what would call a man cave! Link to comment Share on other sites More sharing options...
NB Esk Posted November 1, 2016 Report Share Posted November 1, 2016 Not sure about this engine but a boat on the wharf where I moor has the 3 cyl version and swings a 6 foot diameter prop. Link to comment Share on other sites More sharing options...
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