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Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

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$39.99 /$48.79
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    $17.00 /$48.79
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    Description
    Brand : Racerstar
    Model : BR4250 800KV Motor
    Working Voltage : 3S-7S 18.5V
    Load Current : 48A
    Recommanded Prop : 11x5.5 inch
    Weight : 210g

    Recommanded Parts(not included)
    Prop: click here
    ESC: click here
    Package Included (optional)
    1 x Motor
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    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Racerstar RC Brushless Motor BR4250 800KV 3S-7S Support 11*5.5 Prop for Fixed Wing RC Airplane Drone

    Customer Reviews

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    • wdev99 VIP3
      NL
      11/05/2020

      Tested the motor in our 'AirTrainer' which worked out fine
      Used a 12x8 prop on 4S/4000mAh Lipo. Full power pull is close to 55amps.
      As this is a 'trainer' the full power is seldom used, only for take off and some large loopings or stall turns.
      After 10 minutes flight the motor is just cold.
      Just a good motor for good price

      Comments (5)
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    • Brunswick83 VIP3
      AU
      18/08/2020

      Good motor, but who designed the mounting bracket so that the screws that go into the firewall are blocked by the body of the motor? Ridiculous.

      Comments (1)
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      • 0
        Q: Is the motor bidirectional? Can it turn both clockwise and anti-clockwise or is it restricted to onle one rotational direction
        A:
        Most BL motors can spin in either direction by changing any 2 of the 3 wires powering it. But if the motor spins the same direction as the prop nut, the nut will eventually spin itself off the prop shaft unless you use a Nyloc nut or secure the nut after it's on so that it cannot move unless you remove the wire or the clevis pin. Some use a second nut over the first but a liquid like Locktite should be used in that case.
        Answered by Donald on 25/09/2023Helpful (0)
      • 0
        Q: Can this engine be used in a 2.5kg aero for a sport flight? I plan to use 4S battery.
        A:
        I use it on a 1,8m Piper Cub with 12x8 prop and on a 1,6m CAP232 with a 13x6 prop. Both above 2kg, 80A Skywalker ESC and 4S 4000 lipo.
        Answered by Avronaut on 22/05/2022Helpful (0)
      • 0
        Q: hi I bought two of these engines a few months ago and the first one was super put it on a model of 1400 mm Zero and pull it from the hairs 4s and 80apm esc with propeller 13x8 two blades, So after a while I took the second out of the box and mounted it on a p40 of the same size and I HAD A PROBLEMA BRIBRACION THE ADPATADOR WAS LIGHTLY TORCID, WHICH NOW THE ENGINE IS INSERVIBLE FOR VIBRATION. ...! WHERE I CAN GET ADAPRADORES, ALREADY THAT THOSE WITH OTHER ENGINES DO NOT CALL FOR MILIMETROS.....!!! PLEASE REQUIERO YOUR HELP, I WANT TO BUY ANOTHER ENGINE, BUT I HAVE THE TEMOR THAT ALSO COMES ....!!! AYUDENME PLEASE
        A:
        Dude you make no sense at all!
        Answered by IJSSS on 31/10/2022Helpful (0)
      • 0
        Q: Is it possible to place helice 13x7?
        A:
        I haven't tried
        Answered by Lammih on 17/07/2023Helpful (0)
      • 0
        Q: Need a motor that is equivalent to a .32 glow, can this work?
        A:
        good
        Answered by BG164636221 on 03/11/2024Helpful (0)
      • 0
        Q: Can this engine be used on a boat?
        A:
        in the
        Answered by Spartan0 on 06/11/2022Helpful (0)
      • 0
        Q: Good evening that propeller should be used to occupy a 6s battery thanks
        A:
        11x5.5 inch
        Answered by Thanatology on 22/07/2021Helpful (0)
      • 0
        Q: Can be used with 5cell lipo
        A:
        No
        Answered by nicolaeiondorin on 15/01/2022Helpful (0)
      • 0
        Q: I would not buy a motor that does not also have spare parts for it. Why don't you sell spare part prop adapters for this BR*****Kv Racerstar Brushless Motor?
        A:
        repuestos como tal. no.. pero para qué quieres repuestos en un motor de *****. ? y adaptadores..? el que trae vale para las hélices que mueve . y si quieres algo más grande es posible que los encuentres. el cabezal que está instalado es standar a otros fabricantes..creo que no hay ningún problema con el. en ese sentido.
        Answered by BG365413116 on 19/04/2021Helpful (0)
      • 0
        Q: Hello, I would like to operate the engine with a 3-blade air screw with 4S. (Donier Do*****.5 Kg two engines) Can you give me a recommendation? Hello, I would like to run the engine with a three blade propeller with 4S.
        A:
        You should take into account the size of your propeller, I consider that in three blades up to a maximum 12x6. and read comments that in bipala work up to 13x7 and without problems... Another aspect to watch out for is your battery amps and the discharge rate with a 55c one might be fine. On 4s, 4000 MAH. But try to lighten the plane if you can. You could look for another engine size if anything... Greetings
        Answered by juankarlosph1 on 24/08/2021Helpful (0)
      • 0
        Q: Where can I get a prop adapter for this motor?
        A:
        @jonz77 can you find out for me which motor i have to buy for my hook ll f4u so i will have 2 motors but only 1 shaft? my shaft bent but i cant find a new one. help me please you seem knowledgeable 🌺
        Answered by christiandammann1998 on 06/12/2020Helpful (0)
      • 0
        Q: can fit a 13x7 tripala helix? the propeller's width is 17mm.. the shaft to be 20mm..
        A:
        No.
        Answered by Mileaf on 01/07/2020Helpful (0)
      • 0
        Q: Can you reverse the shaft on this motor jQuery111307822251494078785_1724145709464
        A:
        No answer yet.

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