starman Posted October 10, 2016 Report Share Posted October 10, 2016 I spotted these 'wings' on the back of an old (sorry, historic) tug narrowboat. Does anyone know what they are for? Someone suggested they were to help keep the prop free of mud and silt when bottoming out on the canal bed. Can't say I really see that. Link to comment Share on other sites More sharing options...
David Mack Posted October 10, 2016 Report Share Posted October 10, 2016 The fully welded stern with not a rivet in sight suggests its not that historic! Link to comment Share on other sites More sharing options...
Mitchellmoxo Posted October 10, 2016 Report Share Posted October 10, 2016 Didn't answer the question ! Link to comment Share on other sites More sharing options...
FadeToScarlet Posted October 10, 2016 Report Share Posted October 10, 2016 The fully welded stern with not a rivet in sight suggests its not that historic! Plenty of welded boats at sea from the 1880s I think I was told. Narrowboats from 1935 onwards, I believe, Willow and the other "tree" Severners being some of the first. Link to comment Share on other sites More sharing options...
Ray T Posted October 10, 2016 Report Share Posted October 10, 2016 An early form of Trim Tabs? Or possibly to protect the prop from crud? Link to comment Share on other sites More sharing options...
AndyV Posted October 10, 2016 Report Share Posted October 10, 2016 Perhaps the wings reduce the amount of water drawn by the prop from under the boat and helps it to draw more from the sides, perhaps reducing the amount it pulls itself down under power. Link to comment Share on other sites More sharing options...
alan_fincher Posted October 10, 2016 Report Share Posted October 10, 2016 A shelf to catch any tools you manage to drop whilst trying to cut stuff off the prop via the weed hatch, (so you can get them back again)? (.............................Not a serious suggestion, before anybody treats it as such!) Link to comment Share on other sites More sharing options...
Chewbacka Posted October 10, 2016 Report Share Posted October 10, 2016 So when you go over a supermarket trolley you don't bash the prop? Link to comment Share on other sites More sharing options...
starman Posted October 10, 2016 Author Report Share Posted October 10, 2016 Perhaps the wings reduce the amount of water drawn by the prop from under the boat and helps it to draw more from the sides, perhaps reducing the amount it pulls itself down under power. Actually that's pretty much what was suggested to me - I didn't phrase it too well in the op. Link to comment Share on other sites More sharing options...
WotEver Posted October 10, 2016 Report Share Posted October 10, 2016 Perhaps the wings reduce the amount of water drawn by the prop from under the boat and helps it to draw more from the sides, perhaps reducing the amount it pulls itself down under power. Sounds good to me. Link to comment Share on other sites More sharing options...
Tiggs Posted October 10, 2016 Report Share Posted October 10, 2016 Someone suggested they were to help keep the prop free of mud and silt when bottoming out on the canal bed. Can't say I really see that.IMG_5860.jpg I can see that: I don't understand why you can't. Also, looking at the downward angle, looks like it allows a slightly larger prop (but that may be the picture giving the wrong impression. Link to comment Share on other sites More sharing options...
MtB Posted October 10, 2016 Report Share Posted October 10, 2016 I see the boat has a weed hatch too, so most unlikely to be 'historic'! Link to comment Share on other sites More sharing options...
zenataomm Posted October 10, 2016 Report Share Posted October 10, 2016 Nor is there a lot of draught for something historic. Of course it might be a counter welded onto the front ( or back end turned around) of an older hull. My first impression was a platform to stand on when reaching under to clear the blades. Then I saw the lid for the weed hatch. I now think the owner at the time damaged his prop or shaft on an under water obstacle and just thought I know I'll weld a a guard under it so I don't have this hassle, expense and needing a crane/dry dock again. Link to comment Share on other sites More sharing options...
Dalslandia Posted October 11, 2016 Report Share Posted October 11, 2016 prob a prop protection, it also reduce the prop walk. Link to comment Share on other sites More sharing options...
magnetman Posted October 11, 2016 Report Share Posted October 11, 2016 (edited) Any pictures of the rest of the boat? Looks interesting! I think it is to protect the propeller or more specifically the shaft - as someone else suggested perhaps the owner caught a solid item in the prop and bent the shaft so when repairs were carried out they put this plate on. Very handy for shallow canals with large amounts of industrial / metal waste about. Some areas are worse than others like this. Is it a pusher tug? Typoa Edited October 11, 2016 by magnetman Link to comment Share on other sites More sharing options...
starman Posted October 11, 2016 Author Report Share Posted October 11, 2016 Sorry, i know nothing about the tug - just spotted it in a yard. I think it may be one of those 'historic in part' boats. But let's just settle for 'old'. Link to comment Share on other sites More sharing options...
system 4-50 Posted October 11, 2016 Report Share Posted October 11, 2016 Would it help to keep ropes out of the prop? Link to comment Share on other sites More sharing options...
magnetman Posted October 11, 2016 Report Share Posted October 11, 2016 Starman Was the boat by an ordinary canal or somewhere with more rough water? It could be designed to stop the stern lifting out too much when cruising in rough areas such as Tideways with a lot of traffic and wash about. Link to comment Share on other sites More sharing options...
ditchcrawler Posted October 11, 2016 Report Share Posted October 11, 2016 I spotted these 'wings' on the back of an old (sorry, historic) tug narrowboat. Does anyone know what they are for? Someone suggested they were to help keep the prop free of mud and silt when bottoming out on the canal bed. Can't say I really see that.IMG_5860.jpg Streethay ??? Link to comment Share on other sites More sharing options...
mross Posted October 11, 2016 Report Share Posted October 11, 2016 (edited) deleted Edited October 11, 2016 by mross Link to comment Share on other sites More sharing options...
ditchcrawler Posted October 11, 2016 Report Share Posted October 11, 2016 According to the manual it will operate on an input of 10 to 16V. This implies that you have been taking the batteries down to 10V. Wrong thread. Link to comment Share on other sites More sharing options...
WotEver Posted October 11, 2016 Report Share Posted October 11, 2016 Wrong thread. I stuck it in the correct one Link to comment Share on other sites More sharing options...
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