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>> Home > Tags > brush

brushed motor
brushless motor
Battery problems by Dave M Fleet Admiral!   Posted: 6 hours ago
Hi Allan Glad to hear you have managed to get the boat running. Just so we know what is the final set up? I can see a 12v 7Ahr battery but What is the prop size & type, brushless motor, ESC. You have mentioned these before but may have bought different recently. Looks a good pool to use. As it is saltwater you will need to wash the model down after each sail and oil the propshaft. Salt crystals will destroy any bearings very quickly if you don't. Happy sailing Dave

Pics of running gear and skins by canabus Sub-Lieutenant   Posted: 16 hours ago
Dave M is right about lowering the prop angle and motors. My Aerokits Sea Hornet has only 10mm clearance to the top of the prop and I cutout part of the keel to lower the motor. I installed a 1900kv 28mm brushless motor, 30mm 1.4 pitch 2 blade brass prop with a 2650mah 3S behind the last frame with the rudder servo parallel to the transom. Added a small bit of lead under the front passenger seat to move the CG forward. Very quick little rocket at full throttle.

R.A.F. Fire/Crash Tender by deepdiver Recruit   Posted: 3 days ago
I parched this model of an R.A.F. Fire/Cash Tender as an impulse buy, with the idea of restoring her, I am only selling due to me having started the Mobile Marine Lady “T” She is 34 1/2 inches in length and 10 inches in beam, comes with an E.S.C and Electric motor (may benefit from a brushless set up), there are some fittings but you would need to locate replacements. I am asking £30.00 and I would like to see her go to some one that has the time to put into restoring her to her best. Due to the size and weight it would be best to collect this boat. I am just outside Brighton Sussex Fred (Deep Diver)

Glue Applicator by Dave M Fleet Admiral!   Posted: 4 days ago
Hi Joe Did some more research and found a video on the Deluxe Site This really is a very fine nozzle dispenser and uses capillary action to deliver just the right amount of solvent to produce an invisible joint. They also recommend using for superglue accelerator by applying after the joint is closed to assist the setting process. Much neater way than brush or spray and will not result in marks on the surrounding area. For anyone building fine scale models a really good aid. Cheers Dave

Brushless in or out by canabus Sub-Lieutenant   Posted: 5 days ago
Hi Sonar I have used both in boats and with no watercooling. No problems with both types. The in runners are good for replacing brush motors as the 35mm brushless motor are the same bolt holes as the 540 brush motors. My first brushless was a Trackstar 17T 2400kv into an old rc car, 90watts to 550 watts, turn it into an insane rocket. The main brushless motors we use in the boating club are Hobbyking 3639 750 and 1100kv, 3648 1450kv and the outrunner D3548 1100kv with a 2 blade 40-50mm props. ESC's are the car 60 and 100 amp which handle 2S to 4S Lipo batteries.

Brushless in or out by John Fleet Admiral!   Posted: 6 days ago
Hi Sonar, I prefer to use outrunners whenever possible as they do not require additional cooling. The down side is you need to have space around the motor. John.

Brushless in or out by RNinMunich Fleet Admiral!   Posted: 6 days ago
Ooops! Yep I had saved the page! Here's the link. For big 'eavy boats an advantage of outrunners is the high tork at low revs 😉 😎

Brushless in or out by Dave M Fleet Admiral!   Posted: 6 days ago
Hi Sonar Inrunner brushless have an outer case which remains static just like a brushed motor. Outrunner brushless have an outer case that revolves around the central core which remains static. The revolving outrunner case forms a flywheel which is beneficial when driving a model boat prop where the water resistance is greater than a plane propeller in air. The effect lessens with larger motors used say for fast speed boats. Doug That link appears to be to a file somewhere but there is no url. Dave

Brushless in or out by RNinMunich Fleet Admiral!   Posted: 7 days ago
Hi Sonar, Check this out file:///M:/Downloads%20-DELL&PBELL1/0%20Model%20stuff/E%20Motors%20&%20Controllers/Brushless%20DC%20electric%20motor%20-%20Wikipedia,%20the%20free%20encyclopedia.htm#Variations_in_construction some good info for us 'Brushless beginners!'. I asked me the same question a few weeks ago and, amongst others, found the above. Cheers Doug 😎

Brushless in or out by sonar Admiral   Posted: 7 days ago
Brushless motors. Just a question about them.. What is the real difference between an inrunner and an outrunner ?

Wiring in a rx, an ESC and a battery (pack) by Haverlock Admiral   Posted: 8 days ago
first take a deep breath and calm down its not rocket science. Question does your ESC have a battery eliminator ? if so take away the dry batteries to use in something else. Now your nicads connect to the POWER side of the esc. make sure you have the correct polarity. The servo plug from the ESC plugs into your receiver whichever is your throttle channel. If you have a modern set then you can put it on the wrong way round with no worries since positive is the centre post. The output of the ESC connect to your motor. If its a brushed motor no need to worry about polarity for now. With your ESC there should be some setup instructions if there are none ...... Usually its connect and switch on receiver then switch transmitter on with throttle full listen for beeps then go to low throttle. Switch receiver off. When you switch on in future make sure transmitter is switched on FIRST ok having gotten this far it only remains to check the direction of rotation of the motor. Take off the prop ( saves fingers) and put a piece of masking tale around end of prop shaft. Switch on transmitter switch on receiver and try the throttle. If the motor spins in correct direction fine if not Brushed motor swap the motor leads over Brushless motor swap any 2 of the 3 motor leads over. Job done have a cuppa then decide to sort out the rudder.

Couplings by onetenor Commander   Posted: 9 days ago
Talking of brushed motors I like the /Graupner 400's /600's/800' s Lovely motors. I think.

Muddys Tarpon 9 by John Fleet Admiral!   Posted: 9 days ago
Not a problem Muddy we are here to help each other. I am converting all my boats (except my Springer pusher tug) to brushless at the moment. They are more efficient. They cost more but they last longer and prices are dropping more people us them. John.

Muddys Tarpon 9 by muddy Lieutenant   Posted: 9 days ago
Many thanks John.. I,m pretty sure that the 777 will ackle ok.. as there are a couple here with these motors fitted and they do go well with the correct combination of prop, and twin screw, twin motors 777.. I may well hold you to that statement John about the Brushless motors.. Thanks for the interest. Muddy....

Muddys Tarpon 9 by John Fleet Admiral!   Posted: 9 days ago
Hi Muddy, There are small brushless motors. Speed is of course also about your choice of prop. See what happens with the 777 first. If you are still not happy with the performance let me know and I will help you understand brushless motors. John.