Sky Copter woes...
Discussion
I bought a "sky copter" indoor r/c chopper in the USA last week and had loads of fun whizzing it round my hotel room (look, it was cheaper than hotel porn, anyway!)
However I've now brought it back to the UK and it just wont fly. As soon as it takes off it just yaws madly to the left and spins and crashes. It's as if the anti-torque rotor is not going fast enough...it it turning and if I go left/right on the stick I can hear a change the tail rotors pitch (pitch as in note, not proper pitch obviously!).
I'm gutted as it seemed really good, but I have no idea how to fix the thing, and taking it back is not an option.
Any ideas?
It's this one...
However I've now brought it back to the UK and it just wont fly. As soon as it takes off it just yaws madly to the left and spins and crashes. It's as if the anti-torque rotor is not going fast enough...it it turning and if I go left/right on the stick I can hear a change the tail rotors pitch (pitch as in note, not proper pitch obviously!).
I'm gutted as it seemed really good, but I have no idea how to fix the thing, and taking it back is not an option.
Any ideas?
It's this one...
I did! I even wondered if it might be something daft like interference from fluorescent lights but no, nothing running at the time or since. It feels like it has been over trimmed in one direction and now cannot trim back the over way.
As the trim is electronic and simply controls the speed of the tail rotor (not pitch or anything sophisticated), I can't see why this would be the case.
As the trim is electronic and simply controls the speed of the tail rotor (not pitch or anything sophisticated), I can't see why this would be the case.
Roop said:
Check there's no fluff round the tail rotor shaft. Could try a dab of WD-40 or similar on the tail motor as well.
Also, if it's had a few bashes, the tail rotor shaft can bend ever so slightly. This puts load on the motor and slowly it begins to fail.
Mine regularly has this problem and so far it has always been fine threads from the carpet caught around the tail-rotor shaft. Difficult to see the threads but they slow the tail rotor sufficiently to make the little beast uncontrollable. A few seconds with a pair of tweezers solves the problem.Also, if it's had a few bashes, the tail rotor shaft can bend ever so slightly. This puts load on the motor and slowly it begins to fail.
First things first.
This is a very basic 2 channel helicopter, it will never fly with the grace and control of a fully functional 4 channel one.
However, we've been flying these in the office for well over 12 months now and not a problem with them. What you will notice under the right hand control stick on the transmitter is a trim button which you will always need to use as to adjust the tail rotor's trim. When these thingscrash land the slightest damage can make them very unstable.
However when fully charged up, just adjust the trim when you start up and you'll find they then fly fine, within the limits of a 2 channel model.
They are very robust to a point - we have mid-air fights and they can withstand several hits from another one - great fun.
This is a very basic 2 channel helicopter, it will never fly with the grace and control of a fully functional 4 channel one.
However, we've been flying these in the office for well over 12 months now and not a problem with them. What you will notice under the right hand control stick on the transmitter is a trim button which you will always need to use as to adjust the tail rotor's trim. When these thingscrash land the slightest damage can make them very unstable.
However when fully charged up, just adjust the trim when you start up and you'll find they then fly fine, within the limits of a 2 channel model.
They are very robust to a point - we have mid-air fights and they can withstand several hits from another one - great fun.
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