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>> Home > Tags > johnson motor

johnson motor
540 motor
brushed motor
brushless motor
motor cooler
motor mount
reversing motors
torpedo 850 motor
torpedo motor
twin motor
johnson motor
E s c by Nobby-Clark Petty Officer   Posted: 6 months ago
Guys advice please. Speed controllers for my boat , viper too expensive alternatives please for the johnson 600 motors please. I’m pulling my hair out trying not to have todown grade motors. Regards Terry Nobby

Aerokits Solent Lifeboat by Vickers1979 Lieutenant   Posted: 11 months ago
Hi I use too Johnson 600 motors in mine and she pushes on ok and run both off a 60amp esc.

Fairmile D 1/24 Scale Build by andyhynes Sub-Lieutenant   Posted: 12 months ago
At this moment in time. I am completing a TID Tug boat. My next project is a Fairmile D MTB at 1/24 scale. I intend to run 4 props using brushed motors and two ESCs. I am looking for reasonable performance from brushed motors probably Johnson 600 motors running 3 blade 40mm props. Can anyone give me advice regards this setup or can recommend an alternative that does not involve to much expense.

Brushed motors by Vickers1979 Lieutenant   Posted: 12 months ago
Hi all I’ve been running too 600 Johnson motors off one 50 amp speed controller and a 12 volt battery but the boat struggling so I thinking of running it off too esc too battery I’ve got a y lead but I do remember reading somewhere you have cut one of the coloured leads? Regards lee

Graupner Elke HF 408 by Dave M Fleet Admiral!   Posted: 12 months ago
Hi Allen I did wonder if it was an ex flyer type as it had the gearbox. The markings can help but not possibly in this case. The other major supplier was Johnson but I can't find your TD224. I suspect this will be a high current fast rev motor probably 12v max. To work with your model I think you will be well advised to follow Doug's suggestion and fit a 6v battery. If you can see the windings inside the motor case and they are thick and few then it is a fast and high current motor. The prop looks like a Graupner and is fine pitch and similar models in my club have a nice brass prop of fairly coarse pitch to give a good slow scale speed. The gearbox will allow you to fit a brass prop of similar dimensions to yours. Initially I agree with Doug though, just pop it in the water and see how it performs. With your luck you will probably source a suitable prop from the car boot sales! Finally As the motor is old it could have shorted windings, in which case it's going to get hot. If you have a good multimeter you can check for low resistance between the case and one of the motor connectors. Use the highest Ohms setting you have and rotate the motor shaft a full revolution, repeat with progressively lower Ohms settings. You should have good insulation between the windings and the case, if you are getting any ohm readings chances are there are shorted windings on the armature and the motor is terminal.

CG-52301 "TRIUMPH" by circle43nautical Fleet Admiral!   Posted: 1 year ago
This is my latest progress on the Barracuda RC Boats 52' MLB, US COAST GUARD "TRIUMPH"CG- 52301. I was up until 0500 this AM attempting to finish sheathing the hull. The deck housings are just about ready for paint. I really don't enjoy covering natural wood, but it's a must to achieve proper detail, I reckon. I'm awaiting 1/8" scribed sheathing for the deck, the fantail semicircle will be 1/16" sheathing, and the outboard perimeter of the deck will be 3/16" light mahogany strips. She's powered by a 775 Johnson-type 6-12v motor turning a 4mm shaft and a 75mm 5-blade Raboesch wheel. The 5-blade isn't OEM, but I reckoned she needed some extra muscle to get to the party in distress.

How do I find out the voltoge of my motor without it burning out by Dave M Fleet Admiral!   Posted: 1 year ago
Hi Chris I know of no easy way for you to determine the voltage. However motors do have a coil resistance value measured across the terminals. Also if you can see the coil windings a thick wire usually indicates a motor designed for high speed and current. A thinner wire may produce a motor with lower speed and less current and more tork. If you check the Graupner and look at the windings this may help you identify the other two. In my experience it's usually too low a voltage that's the problem resulting in slow revs and little if any tork. At the other end of the scale too high a voltage will result in very high revs and lots of sparks from the brushes. In this case if you continue to apply the volts you will damage the motor. Many electric drills were powered by motors rated at 9v and did indeed have an impeller cooling fan. That said Mabuchi and Johnson produced a vast range of motors all looking similar on the outside but wired very differently inside depending on the ultimate use. I suggest you try with progressively higher voltages and assess which is best for the two unknowns. Finally most motors are designed to work over a range of voltages so I usually measure both the upper and lower values so I can select the right motor for a particular model.

What motor have I got? by Dave M Fleet Admiral!   Posted: 2 years ago
Hi Chris They are all based on 550 motors made by Mabuchi or Johnson. They were GP motors available in different configurations for specific purposes. You can look on data tables to find the exact specs if the motors still have visible markings. The Graupner is designed to run on 8.4volts but the motors can be wound to run on different voltages. I suspect the one with the fan is taken from an electric drill. They used to be popular with the fly boys pre brushless so they are available in large quantities at cheap prices. I suggest you run them with an ammeter connected to a 8.4 (approx) battery and see what current they draw. High current would be good for a fast runaround for 10 mins or so, low current will have more tork and be suitable for a scale cabin cruiser/tug etc. If you have two that draw roughly the same current at the same volts they might be suitable in a twin prop, provided they both rotate at the same speed. Dave

Battery problems by Patto Chief Petty Officer   Posted: 2 years ago
G/Day All Thanks for all of your advice. I have a 2 blade 40mm prop and the shaft is running free. i originally running a Johnson brushed motor with no problems with power except it and the esc i had got extremely hot. i could not find a water cooled brush motor so that is why I got the brush less motor. It is very hard to get model boat parts in Australia. Maybe it might be easier to put the old motor back in, i have now got a water pump so i maybe able to make a cooling system. Cheers Allan

Motor upgrade by colindavies Sub-Lieutenant   Posted: 2 years ago
I'm looking to upgrade my 34" model of a 68ft Mk2 RTTL from two johnson 555motors (running on 12V nimh) to running brushless. the speed is reasonable at the moment but a bit more would be better. I've been recommended 1000kv turnigy but which one the D3536 series or the D2836 series, anybody got any ideas which would be the better. I'm aiming to run on 9.6v

Aero kits sea commander by laurence1 Chief Petty Officer   Posted: 3 years ago
Thanks very much Paul, I was planning to use the Johnson 600 in my Sea Commander. I've built a few boats but not really ever used them in the water so not up to speed with rc stuff. I was planning on using a bigger motor for both my Sea queens, this is very helpfull information for me tho as I don't know anyone really that is in to this hobby. Laurence

Aero kits sea commander by pmdevlin Fleet Admiral!   Posted: 3 years ago
The Johnson 600 is a very popular motor, its what comes as standard with a club 500. Having club 500 experience, on same voltage, my personal recommendation is the Sea Queen is a heavy old girl compared to the much smaller and plastic light Club 500. I think it will be underpowered., that Hull needs a turn of speed to get up on the plane. they go very well then, its not a slow boat, but then its really personal and depends what you want. You may also experience overheating, as the motor will be working hard. If you want to stay with a brushed motor then I would use a 600, something like a graupner 600BB Turbo. I did a lot of experimenting some years back when rebuilding my 3 foot aerokits fireboat, and the 600 came out well as direct drive or with a gearbox. Up the voltage to the max in the range will give more speed. Paul

Aero kits sea commander by laurence1 Chief Petty Officer   Posted: 3 years ago
Hello, I'm new to the site and am currently about to start rebuilding a Sea commander. I was planning to run it on a Johnson 600 motor on 7.2volts. I'm just asking if this would be a suitable set up for this boat? Also I'm using a 25mm 3 blade prob. Any help would be great.

Engine Mount Issues by Aeronut1 Sub-Lieutenant   Posted: 3 years ago
Removal of the engine block looks tricky if one thinks about chiseling it out but on my 34" that I originally built in 1963 and fitted an ED Sea Otter 3.46 diesel I found that a hot air gun set to V hot and waved around the block got it free within five minutes- without anymore bashing. I've restored the boat and changed to electric propulsion using Johnson 980 motor... Boat comes 2/3rds out of water to amidships now. Actually I've restored two 34" fireboats and since scratch built the 46" FB but using a fibreglass hull, the 46" job has fitted out wheelhouse, ditto first aid room, working lights and monitors and is powered by two Johnson 980 motors. Jim

Vosper R.A.F. 73FT H.S.L 2564 ebay find by silverfox Chief Petty Officer   Posted: 4 years ago
This is my newest project an Ebay buy of a delapidated HSL possibly used to advertise Model boat Insurance at some time maybe 50 years old !. I have removed all broken, out of scale and incorrect items, removed old repairs and internal engine mounts. Superstructure is not too accurate but good enough to keep. I have noticed the keel is slightly twisted so will have to try and rectify that and the rear deck is going to be removed also as the adhesive is soft and pliable and there is no rigidity in the build aft of the superstructure. I intend fitting 2 x 12v johnson 600 type brushed motors as the original had 2 props. I have plenty of photos of the external layout but lack any detail of the open bridge 😟 . I think this will be a difficult project to complete hope I do it justice