ok so I got the sky king tail rotor and installed it but for some reason it seems to bind up - like its a tighter fit than it should be. the stock rotor spins freely but no matter what i do, with the sky king tail rotor on there, either the motor cannot spin it or it spins it slowly.

The tail rotor from the QS-8006 53" heli is a perfect fit, no modifications necessary... unscrew the original and and screw the new one in place. It works great... first pic shows the original, the sky king then the qs8006 rotor. Second photo is qs8006 installed. Direct replacement, you will notice it is "meatier" then the sky king rotor. Cheers...

This is the one I got. Is it the wrOng one??

http://item.mobileweb.ebay.com/viewi...d=150828464016

Not wrong....just another option. I bought the sky king rotors as well, while waiting for the slow boat from china I got curious and tried the tail rotor from the QS-8006 and found it to be a perfect fit, screwed right on and works great ...no modifications to the tail rotor itself, did have to notch the vertical stabilizer but you have to do that if you use the S/K rotor anyway.

So if the sky king rotor is supposed to fit, I am wondering why mine doesn't. Any ideas?

pop the cover off the gears and try putting it back on, it is possible the OD of the rotor is binding within the ID of the gear cover....try it without it, worth a try.

When I put the original rotor back on it works fine. It just won't spin the new rotor.

Then it must be binding somewhere, the only thing in the way is the plastic cover over the gears, remove the 2 screws holding the cover on and install tail rotor again. If that still does not fix it...order the qs8006 tail rotor.It works perfect, no mods, no "wallowing" out holes, just slip it on the gear and screw it down or up.....your choice.

"Now about the gyro... the small upright metal can on the circuit board is a crystal, it determines the frequency between the TX and Rx, it is not a gyro. To explain further... you would not think of a computer hard drive as a gyro.... but hold one in your hand as it is spinning and move it...the resistance or opposition to movement is the gyroscopic effect. Now hold the 9053 in your hand....move it. Nothing right? Just flops around...now hit the throttle, get the blades turning...you will notice it now exhibits the same resistance or opposition to movement as a spinning hard drive. In order to employ the effects of a gyro, something has to be turning. Nothing on or in the circuit board is turning, the gyro effect comes from the blades turning in addition to the balance bar. They do make mini gyros for the more expensive models, one I saw listed for $159 bout the size of a quarter."


You are aware that modern gyros look like IC's? a couple of mm or so across.
If you ever fly a non gyro helicopter you will know instantly what a difference it makes.
Bummer about the chest injury, hope it heals soon.

Thanks GeeBee.....I stand corrected....

Gyroscope sensor

http://www.gyroscope.com/d.asp?product=PIEZO

Originally Posted by boulier1

pop the cover off the gears and try putting it back on, it is possible the OD of the rotor is binding within the ID of the gear cover....try it without it, worth a try.

Hey what do you mean by OD and ID?

I think he meant Outside Diameter and Inside Diameter. In other words, he was saying that the gear cover might be rubbing on the gears themselves. So, he was suggesting to remove the gear cover. HTH.

Originally Posted by Heli Pad

I think he meant Outside Diameter and Inside Diameter. In other words, he was saying that the gear cover might be rubbing on the gears themselves. So, he was suggesting to remove the gear cover. HTH.

ahhh ok that makes sense - havent had the time to look at it in a few days now but hopefully this weekend i will have more time and I will give that a shot. THanks for the clarification

Close.... the rotor fits down into the gear cover hole, if the rotor is slightly larger(OD) then the hole (ID) it goes into then it rubs. The tail rotor motors are not that strong so if it is binding that would explain the problem, Again... remove the gear cover and you remove that possibility, Then if the rotor spins correctly, you found your problem.

Thanks Heli Pad for the help...sometimes I forget to clarify things....

I have a spare working PCB 27mhz I'll trade for one of those rotors..