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The HobbyKing J3 Cub is a faithful representation of this famous civil aviation icon, that will appeal to both experienced pilots and beginners looking for a nice scale model to learn on. Excellent flight performance is guaranteed as well as good flight times. The HobbyKing J3 Cub is a great looking model both on the ground and in the air.
This Ready To Fly (RTF) model includes everything you need to take to the skies right out of the box. The 2.4Ghz FHSS 4 Channel radio provides rock solid performance and trouble free flying, while a quality Turnigy 1000mAh 3S1P lipoly battery ensures plenty of power and great flight time. A 12v 2s/3s Lipoly balance charger is also included making the HobbyKing J3 Cub a truly ready to fly model.
I am having a problem with the servos for the ailerons, they dont react at all, they arent even moving to a neutral position when i plug in the battery. The only thing they do is make this very low buzzing sound. Help !
hi, i got this model as my first electric and i'm a little green with electric models so i have a couple of questions:
1. do you switch on tx or rx first?
2. in what position do you keep the throttle stick for the sc to be armed properly?
3. is it normal that when i give it full throttle the power on the motor will decrease after a couple of seconds, and it will do the same when i put the throttle down and up again? battery is fully charged.
You turn on the tx first always. To properly arm the esc set the throttle at zero every time you power it on. It is not normal for the motor to decrease after a couple of seconds especially if the battery is fully charged. Hope this helps.
I got tired of replacing the shaft in the original motor every time I didn't have a perfect landing. So I put the Turnigy DST-1200 Brushless Bell Motor 1200kv into mine and it flew OK. I don't think it is quite as powerful as the original motor but by the time I replaced it the plane had bee crashed and repaired so many times it was getting heavier anyway. The D3128-1550 Brushless Bell Motor might also be a good candidate but I have no first hand experience with it. Parting words...do yourself a favour and buy the 1400mm Cub. It's usually on special for $108 from HK. You already have a 4 channel TX/RX from the little one and the 1400mm Cub is a much much better plane.
So I flew my cub this morning, great plane. I crashed and now I need to buy a replacement motor or shaft. any insight into what I should buy would be a great help
John you must ask CS about theses item. Keep all packing because they will ask Photo of every thing you got including any and all PACKING. (IE: the box, everything). CS live is at the top right hand side corner.
The battery that came with the J3 Cub would not charge so I have had to use some helicopter batteries that I had around the house from the T - Series I purchase during last year. There also was not any assemberly glue in the box that the plane came in so had to go local hardware store and purchase my own.
Even though the aircraft appears ok it self I will need a replacement battery and charger will be a problem because it will have to come from the states
Hi people,
I bought the model in the summer and had a bad landing and now the model will not work.
The Transmitter lights up when batteries are installed. The model does the start up procedure when a li-po is connected. but, nothing more happens. Do I need to re-bind it all? and how? or do I need to buy a new Rx?
Thanks
I bought this motor to replace mine: D3128-1550 Brushless Bell Motor www.link Don't forget to buy Bullet-connector for motor (2mm I guess, I took 3,5mm and it is too big, but I fixed it).
I bought this motor to replace mine: D3128-1550 Brushless Bell Motor www.link Don't forget to buy Bullet-connector for motor (2mm I guess, I took 3,5mm and it is too big, but I fixed it).
Hey guys,
could anyone let me know if there would be a good replacement motor for the J-3 cub, as i took it out for the maiden flight and smashed head first and snapped the shaft in half and need a new motor... -_-
thx
I bought this motor to replace mine: D3128-1550 Brushless Bell Motor www.link Don't forget to buy Bullet-connector for motor (2mm I guess, I took 3,5mm and it is too big, but I fixed it).
We need to know what the receiver was you damaged and which transmitter you're using. Due to age my ESP isn't as good as it used to beIt's impossible to answer your question on the information you gave.
Quint if you really want this to happen then contact CS. But you need to put your money where your mouth is. Also a few other buyers will help TOO. I hope this helps
The biggest that can fit is a 4 cell 2200mAh and that is a tite fit. Gives lots of power though!! If you go any bigger you will not have room to put the battery cover on and it will not fit in the compartment
I pulled out the front seat, relocated the pilot to the rear (like a real Cub flown solo) and put the ESC where the front seat used to be. Poke a hole in the floor and run the wires back down to the RX. This keeps the ESC a bit cooler and allows more room in the battery compartment. Biggest I've put in is a 3S 1500mAh but you could probably go bigger.
If you still haven't been able to get the 1030mm RTF Cub then I'd recommend ordering the bigger 1400mm Cub. You will have to order a TX/RX package with it (I recommend the HK6DF six channel package for about $28) and at least one battery if you don't already have one. This is a much better flying plane than the smaller 1030mm Cub, especially on a 4 cell LiPo. I have both the smaller and larger Cubs so I'm speaking from experience.
How long will it take to arrive in the south of brazil (postal-code: 93900000) ? and if I add a battery ou a propeller, both come together whith the plane´*s package or separetly ?
If you buy a battery with the plane in the same cart, it will be in the same box.
Customer Reviews
Overall Rating
irfan
17 likes
Value
UNRATED
Quality
UNRATED
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The plane arrived safely and well packed. I did a maiden flight and it flew great but fast for beginners.
I would like to give it 4 star because wheels are very weak and will roll out from the rod during take off or landing.
It will not take off from the grass at all
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Overall Rating
Adamante
1 likes
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Quality
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I like it's quality excepting shassis. They made really wrong!When plane is taking off or landing tey screw off the spindle!!!!
But it wasn't big problem - you can easily fix it. So generally I like the plane!
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Overall Rating
brush.stroke
2 likes
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Quality
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Very Good Value. Excellant foam scale. Easy assembly. Flys very well. This is my second RC plane after initial trainer. Using Futaba 7C with airelon/ rudder mix and flaperon (airelon/flap mix). Flys scale like with these mixes. I changed the wheel locks as this is the only weakness - the original wheels roll off during takeofff due to poor wheel lock assembly. Hobby King needs to reddesign this wheel issue. Balances at CG with 1000mah 3cell as per the instruction book.
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Overall Rating
Flip__3D
33 likes
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Quality
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hey guys im teaching my father in law to fly with this it his Christmas present im getting him ill update you all on how it fly's :) and how go it is for a new flyer :)
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Overall Rating
Stick&Tissue
62 likes
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Quality
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Cub revisited: OK, when I first got this and started to re-fly after a 20 year absence from RC I wasn't too impressed as it doesn't fly like a Cub, at least none of the real ones I'd flown. Having previous years of experience with free flight I persevered and made some mods that have improved the flight envelope. Shimming the motor for down thrust I ended up with two 1/8" washers under the top motor mount screws. I had to file away some of the prop shaft hole in the cowl as I'd also added a prop hub adapter. I also added about 1/16" shimming under the trailing edge of the wing to reduce the angle of incidence. These mods toned down the tendency to zoom up under full power (although a fair bit of down trim is still required) and the transition to a gentle glide is much more predictable without having to change the trim for each flight condition. The plane now flies much better although too fast for scale. This is definitely not a beginner's plane; the ailerons are way too quick for starters. The 1400 mm version that I have since bought is much easier to fly, more predicable, and flies much more like a real Cub. Both planes will do all the usual loop, roll, and combinations thereof as well as nice snap rolls (better to left than right), spins, inverted, hammerheads, etc. But the smaller one does it all much quicker. It's a fun plane once you get it sorted out.
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It's impossible to answer your question on the information you gave. 
