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3,160 posts for “brushless”
Page 20 of 113
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Too Powerful Brushless ?
Hi Graham, As DaveM says, he has worded it much better than I did. Hope it works out for you this time. Happy Boating. love to see some video of her on water once you have sorted her out.
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Too Powerful Brushless ?
Hi Graham You do have to support the prop shaft close to the bearings at each end. This is vital if you are to avoid a slight imbalance developing into an uncontrolled whipping and as you have experienced, damage to the shaft assembly. The …
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Too Powerful Brushless ?
Hi Graham its at each end you need support to stop any whip on shaft
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Too Powerful Brushless ?
With respect Graham, A 'Keelson' is always inside the boat / ship. it is a reinforcing beam laid across the top of the keel. Nothing outside the hull. Good luck with your fitting out and much fun sailing, Cheers Doug
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Too Powerful Brushless ?
hi Dave M, well that was good info on the Lipo's i was going to put them in Parallel But certainly won't now! i will use one and then swap over when necessary as you suggest,Thanks! As far as the 500 watt motor is concerned, i have not purc …
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Too Powerful Brushless ?
With you all the way down the line Dave
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Too Powerful Brushless ?
That sound better with a 5 mm shaft. But still be sure to support the shaft under the boat and if possible also under the shaft inside the boat. This way you shouldn't have any trouble with vibration though the shaft to loosen it.
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Too Powerful Brushless ?
I think you've missed the point. Everyone has said you need less wattage . Ie under 500 watts and you've picked one at 500.Something about 440/50 watts tops is what you need.Even 350 would move your boat at a more scale speed with the right …
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Too Powerful Brushless ?
Hi, i have searched for a 500 watt 500kv motor and just can't find any, what company do you use for motors? at last i think i found a suitable Motor, i hope, it's a keda 36-42m 500 watt 950 kv, with a 5mm shaft and fits my new 5mm to 5mm co …
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Too Powerful Brushless ?
Hi Graham, There have probably not been any answers so far because we are most possibly speechless. If you go back and read through the comments above you will see that most of the problem has been the large overpowering of your boat (1690 …
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Too Powerful Brushless ?
Hi all, what do we all think of the Graupner 500 ECO? it only does 7500 rpm but high torque, about 1500 watts, 14.8 volts. The say it is especially built for boats. I would like to know your thoughts on the small outrunner motor? Regards Gr …
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Too Powerful Brushless ?
The blade breaking above the hub indicates flexing of the blade for some reason.
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Too Powerful Brushless ?
the "roundy" bits are just for decoration by the way! and they are brass, just painted to look like metal
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Too Powerful Brushless ?
I was also told about cutting away the front edge for the same reason, digging in on turn's. I have found on hulls like the Vosper RAF Crash Tenders and MTB hulls they sit on the water on a turn as if they are stuck on the water no roll at …
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Too Powerful Brushless ?
big pair of molegrips on it, and twist regarding the rudder, I use standard profile rudders, and cut them this way. The rudders are like brakes, and I was having issues on fast gradual turns the bow was coming down, almost digging in. Think …
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Too Powerful Brushless ?
Hi Graham I usually use the dremel to remove as much of the epoxy around the shaft, then get a big lump hammer and hit the end of the shaft to break the seal. Depending on how well you fitted the shaft it normally comes loose after a couple …
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Too Powerful Brushless ?
you could use a dremel and grind some away. I have used the brute force and Tapped the shaft inwards if a few taps aren't enough then a couple of harder whacks should do the trick to loosen it. then pull it out from under the boat. it has a …
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Too Powerful Brushless ?
Hi all, Wow! so much info to take in, all excellent information though! How do i get the old shaft out of the boat? it's well epoxied in down nearly the whole length! Thanks again Graham
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Too Powerful Brushless ?
pmdevlin, I also see in your pictures that you have hardly any leading edge on your rudder, do you buy them like this or do you fabricate them yourself. if so then why ??
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Too Powerful Brushless ?
The bracket Canabus showed is the same as I described they work well.
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Too Powerful Brushless ?
Thanks Boatshed Maybe not nuts, just a little eccentric or pedantic?
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Too Powerful Brushless ?
Brilliant Haig I'll try that as well with my mini-cam and a Wattmeter such as Dave suggested.
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Too Powerful Brushless ?
Hi Canabus, I think that's the same pdf I found Snag is - you can't upload pdf's here You have to do what I did; Snip-It into jpeg pics and upload them. BTW: attached are the dimension drawings to go with the spec. table. Graham: table show …
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Too Powerful Brushless ?
Hi Graham and Haig The max current is the Max Watts divided by the Battery Voltage. Most motors reach their max efficiency at much lower value, typically about 77%. You need to take care when interpreting the data especially when the descri …
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Too Powerful Brushless ?
Graham, I have attached the same table that Doug sent me. This has the relevant information you seek. According to the table attached the Graupner 500 kV ECO has a specified output of 1440 watts and 80Amps. Strangely the 400 kV ECO has a sp …
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Too Powerful Brushless ?
hi all, so what wattage is the Graupner 500 ECO, can't find the Amps. how do you know what ESC Amperage to buy? Regards Graham
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Too Powerful Brushless ?
Mon plaisir Haig, that's what we're all here for - ain' it? Happy sailing, Doug BTW: that's one thing I really like about the German suppliers, most of them give much more info in their on-line specs. Funny; for years at work here I used to …
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Too Powerful Brushless ?
RM. thanks for the propshop up-date, did not know of there problems, hope they are back in business soon, Simon at Protean, was propshop till he left, his range is superb. Mark