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>> Home > Tags > brushless motor

brushless motor
540 motor
brushed motor
johnson motor
motor
motor cooler
motor mount
reversing motors
torpedo 850 motor
torpedo motor
twin motor
brushless
h.m.s fearless
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brushless motor
Vosper by Biscuit Sub-Lieutenant   Posted: 9 days ago
[Score: 10/10] 42" Vosper Single Propellor (3 Blade 50mm) Geared to a Os 40 fourstroke (3 Blade) - Comments: I always liked the sound of a fourstroke engine so I thought I would replace the brushless motor in this boat with an aircraft Os 40fs which I converted with a water cooling jacket that I turned up on my lathe. I also made a reverse gearbox with a clutch, the gearbox is operated by a servo and works well, I also fitted a water pump so could still cool the engine while ticking over stationary, boat has been weathered and is fitted with lights and a searchlight that swivels around operated by another servo, there is also a cooling fan above the engine just to help keep things cool.

Fast electric rc transmitters by boaty Admiral   Posted: 9 days ago
Just got a new Proboat Sonicwake .The e.s.c and brushless motor look very good but the STX2 TX appears to be a bit cheap . Not sailed it as yet but changed over to the Futaba T2HR system as I had already done on my Blackjack 29. I prefer the stick to the wheel and the Blackjack runs very well on the Futaba T2HR and has the steering adjuster on top right of the TX case. Has anyone else used the Futaba set in place of the one that comes with the boat.😁 Boaty

Ashes the scratch built Motor Torpedo Boat by Sakibian Chief Petty Officer   Posted: 9 days ago
I found this hull at thingiverse last year. I printed the hull from a local shop and rest was handmade. Firstly I bought a 2426 4200kv brushless 2-3s which was too powerful and too heavy for the boat size. The length is 38cm. And the 30Amp esc was also too big for it's size. After that I tried small 180 brushed motor with 20A brushed esc w/brake. It was perfect (still it's heavy😂). The bridge and deck is made by 1.75mm pvc,torpedos are made of wooden pencil. Small battery space takes a 2s 500mah lipo. 30mm 3blade propeller. YouTube video link is here: https://youtu.be/KZdmZ8_Z0IE

Brushless motors (again) by steve-d Lieutenant   Posted: 14 days ago
Will need to put this on hold for a bit as I have just discovered a guy working in the next industrial unit to mine is into boating and has offered to give me a motor and ESC that he has 'outgrown'. In the mean time I need to replace the propshaft as it is not man enough plus a metal U/J. Bit of hacking required.

just need cable (wire)... by KenThompson Lieutenant   Posted: 15 days ago
You could ask them about fitting a brushless motor to your chair,,,,lol. Cheers Martin .

Brushless motors (again) by onetenor Fleet Admiral!   Posted: 15 days ago
Certainly see👍ms a good spec.

just need cable (wire)... by RNinMunich Fleet Admiral!   Posted: 16 days ago
Aha! Of course!! GO FASTER STRIPING!! 😁😁😉😉 Zoom Zoom Masie😁 Martin. Don't know why you didn't just troll down to your local Halfords or any decent garage / auto parts shop, where you'd find the stuff hanging off the walls. Red, Black and any other third colour would do. The three brushless motor leads can all be the same colour, don't make a happorth o' difference. If the motor don't run the way you want just swap any two wires and all will be hunky-dory You aren't working with high currents (i.e. more than 10 to 15A) as far as I can see so the 'standard' car wiring , ca 1/8" diameter, would do. Cheers, Doug 😎 BTW; if you hate working models why the heck do you bother building 'em!?

Brushless motors (again) by Haverlock Fleet Admiral!   Posted: 16 days ago
This looks like a BEAST https://www.rapidrcmodels.com/ntm--4248-650kv-v2-brushless-o... run it on a 4s battery ( ok go 5s and a smaller prop)

Brushless motors (again) by onetenor Fleet Admiral!   Posted: 16 days ago
Seen this====https://www.designnews.com/automation-motion-control/small-c...

Brushless motors (again) by steve-d Lieutenant   Posted: 17 days ago
Boat was designed for 5cc = .32 = 640W = 58A Bought the watt meter. Both the motors mentioned above are back order.

Brushless motors (again) by Haverlock Fleet Admiral!   Posted: 17 days ago
depending upon the type of motor cooling it can be a problem. Most brushless motors are out runners so the case rotates! In runners are usually for higher speed applications (or driving a gearbox). If you have an idea as to the size of IC engine the boat was intended to have then this list may be a help .049 or .051 = 100 watts 0.10 = 200 watts 0.15 = 300 watts 0.25 = 500 watts 0.32 = 640 watts 0.40 = 800 watts 0.45 = 900 watts 0.51 = 1020 watts 0.61 = 1220 watts 0.75 = 1500 watts 0.91 = 1820 watts Since Watts are Volts * Amps ( I know this is not accurate for a reactive load like an electric motor but its a rule of thumb) This gives you a ball park next point is the KV ( revs per volt) of a motor. The higher the KV the smaller the prop. Finally buy a Watt meter they are not expensive and give you a chance to " fine tune" a setup. https://www.ebay.co.uk/itm/FT08-RC-150A-Hight-Precision-Watt... Car ESCs ( usually) have a reverse function while the airplane versions do not. They are generally cheaper than boat specific ESCs.

Brushless motors (again) by steve-d Lieutenant   Posted: 17 days ago
Any specific reason you refer to a 'car' ESC? What size (dia.) shaft should I use? Will I need to cool that motor? Cheers Steve

Brushless motors (again) by canabus Fleet Admiral!   Posted: 17 days ago
Hi Steve I started with the Hobbyking 3639-1100 kv in my Huntsman with a 2 blade 40mm prop, 3S 5800mah Lipo and a car 60 Amp ESC. Upgraded to the 100Amp car ESC and a straight change over to the 3648-1450 motor. All from Hobbyking. Good units and have no problems. Also a the price will not break the bank book!!! Note, change the uni-joint to metal as the plastic ones will not handle the power and break. Canabus

Brushless motors (again) by steve-d Lieutenant   Posted: 18 days ago
Again, as not wanting to nick someone else's thread. Huntsman 31 currently has a geared (belt) brushed motor which was probably quite a good spec. many years ago. I don't remember how quick it was but having watched brushless boats running this morning in Southsea I have decided now is the time for change before I start painting. I've been reading various threads and gleaned some info but it is still a minefield. Whilst this boat (original) is twin screw I am not yet ready to go that far so will stay single screw. A thread suggested 3639 -1100KV which is fine as a spec. but there are a zillion different makes and models for that spec. Cornwall models seem to offer 6 or 8 so I am looking for more specific advise for make and model of each piece of the power system...motor, ESC, battery, charger. I'm not going to say 'money no object' just that I don't 'need' to buy bottom spec. I suspect there will be as many different suggestions as 'Cornwall' have motor makes but something good will come out of it. Many thanks Steve

Brushless motor(s) by Little-Charlie Sub-Lieutenant   Posted: 18 days ago
Thanks Rowan for your second message I do appreciate the offer and I am sure you will be hearing from me in the future Regards Little Charlie