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Post by Deleted on Nov 18, 2017 17:43:38 GMT
Somewhere in Birmingham I think. There was a discussion on cwdf a while ago and some old photos turned up.
Peter boat
Was it a Lynch motor you used ? And was it belted or direct drive?
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Post by kris on Nov 18, 2017 18:17:56 GMT
Wast Hill Tunnel? Isn't this one of the tugs? No I don't think that was one of the tugs, that's one of the only narrowboats that I would swap my boat for .
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Post by Deleted on Nov 18, 2017 18:39:20 GMT
Wast Hill Tunnel? Isn't this one of the tugs? Whoever uploaded that video was quite rude ! Nice boat though.
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Post by kris on Nov 18, 2017 18:50:15 GMT
Wast Hill Tunnel? Isn't this one of the tugs? Whoever uploaded that video was quite rude ! Nice boat though. I belive it's got a 4L2, and it looks even more stunning in the flesh. Apparently there is another the same somewhere called Worcester( I think that's how you spell it)
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Post by Deleted on Nov 18, 2017 19:04:47 GMT
Did you watch the video clip? It seems a bit rude to me to put a fairly personal (if publicly exhibited in this circumstance ) "woman rant" onto YouTube. But yes a 4L2 is a superb non living object to share a boat with
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Post by tonyb on Nov 18, 2017 19:08:02 GMT
I, too, watched the video and recognised the driver CRT could easily set up an electric socket beside every Elsan station for the re-charging of electric boats. How about overhead wires along the canals, so that boats could run like trains, catenary + pantograph system? I bet someone now is going to steal my idea! Bastards! Or did you steal if from the River Wey navigation? I think Stephen's grain barges used it long ago - & I understand tunnel tugs.
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Post by bodger on Nov 18, 2017 20:01:58 GMT
has anyone got subtitles for the dear lady's conversation? I couldn't pick up what she was saying, but she sounded a bit Aussie to me.
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Post by peterboat on Nov 18, 2017 20:35:49 GMT
Somewhere in Birmingham I think. There was a discussion on cwdf a while ago and some old photos turned up. Peter boat Was it a Lynch motor you used ? And was it belted or direct drive? Yes it is a Lynch motor, I bought it from him years ago really nice guy, it is a belt drive and its 24 volt which is ok for my needs. If you look at the first seconds of the video you see it. I am using 8 x 6 volt GTP batteries, and with luck will have 2 KW of solar panels on the roof, so summertime cruising should be all day for free!!
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Post by bodger on Nov 19, 2017 9:25:37 GMT
You'll be lucky to get more than about 8kWh on a cloudless summer's day. What current are you drawing at cruising speed?
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Post by peterboat on Nov 19, 2017 10:29:30 GMT
Until the shunt and amp meter arrive I cant say, but voltage draw at 3mph is 9 volt so not a lot I would say. I chose the bathtub because its light and has an underwater shape. Hopefully next week the stuff will arrive, and I will know better what its doing but I will be surprised if it drawing much whilst cruising, they are the most efficient commercially available DC motors in the world and much used in the electric boat world over here. The yanks seem to like AC motors with all those conversion losses?
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Post by bodger on Nov 19, 2017 14:19:04 GMT
Until the shunt and amp meter arrive I cant say, but voltage draw at 3mph is 9 volt so not a lot I would say. I chose the bathtub because its light and has an underwater shape. Hopefully next week the stuff will arrive, and I will know better what its doing but I will be surprised if it drawing much whilst cruising, they are the most efficient commercially available DC motors in the world and much used in the electric boat world over here. The yanks seem to like AC motors with all those conversion losses? how does a 24v motor draw 9v? is it connected via a rheostat, wasting 15v in waste heat generation or is it pulsed control, with 37.5%/62.5% pulse widths?
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Post by peterboat on Nov 19, 2017 14:58:11 GMT
Until the shunt and amp meter arrive I cant say, but voltage draw at 3mph is 9 volt so not a lot I would say. I chose the bathtub because its light and has an underwater shape. Hopefully next week the stuff will arrive, and I will know better what its doing but I will be surprised if it drawing much whilst cruising, they are the most efficient commercially available DC motors in the world and much used in the electric boat world over here. The yanks seem to like AC motors with all those conversion losses? how does a 24v motor draw 9v? is it connected via a rheostat, wasting 15v in waste heat generation or is it pulsed control, with 37.5%/62.5% pulse widths? Curtis controller PWM to achieve motor speed which means at 3 mph it is delivering 9 volt to the motor. I can get it to turn at about 10 rpm or 1200 rpm just like a diesel engine only quieter and when I am in the locks or tieing up motor is off. The motor is designed to have a voltage input from 1 - 110 volt as I said Cedric is a very clever nice chap
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Post by Deleted on Nov 19, 2017 17:57:56 GMT
how does a 24v motor draw 9v? is it connected via a rheostat, wasting 15v in waste heat generation or is it pulsed control, with 37.5%/62.5% pulse widths? Curtis controller PWM to achieve motor speed which means at 3 mph it is delivering 9 volt to the motor. I can get it to turn at about 10 rpm or 1200 rpm just like a diesel engine only quieter and when I am in the locks or tieing up motor is off. The motor is designed to have a voltage input from 1 - 110 volt as I said Cedric is a very clever nice chap TT zero winner too 👍🍻😎 www.saiettaengineering.com/
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Post by peterboat on Nov 19, 2017 22:16:08 GMT
Curtis controller PWM to achieve motor speed which means at 3 mph it is delivering 9 volt to the motor. I can get it to turn at about 10 rpm or 1200 rpm just like a diesel engine only quieter and when I am in the locks or tieing up motor is off. The motor is designed to have a voltage input from 1 - 110 volt as I said Cedric is a very clever nice chap TT zero winner too 👍🍻😎 www.saiettaengineering.com/I saw him doing 70mph on his electric bike years ago amazing
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