My Big Lama motors change required.

platinum · Last edited by platinum on Sat Jun 25, 2011 9:05 pm; edited 1 time in total

After I set my Tx according to Tombo production manual.
I test flew it feel good and make me more confidence about blades strike the only abnormal is more trim to the right.
But the second flight my bird loose power I have to land on the water (shallow rain water trapped along side of the road).
Only the battery submerged under the water.

I changed the battery and flew again still loose power and yaw to the left.
Testing by hold the bird by hand and increase the throtlle while push rudder stick to full left then right the result is
the speed of upper rotor much slower than the lower.
So it's time to change the motors.

I fell that ...[Co-axial - After flying normal and the gyro trim is OK
if the bird gradually need more and more ruder trim/ or loose power may caused by motor deterioration.]

platinum
_________________
/Goal : relaxed flying with the least fixing. Very Happy

pjdog · Posted: Thu Jun 16, 2011 8:39 pm Post subject:

Get some ball bearing motors and that will not happen any more. The oil light bearings do fail very early.

Good motors weather they are brushless or brushed that have ball bearings will last allot longer and don't draw as much battery to fly. So you also longer flight times.

jack
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tombo242 · Posted: Thu Jun 16, 2011 9:56 pm Post subject:

Here are the type of motors you need. The seller will combine postage.

Motor A Motor B

There are others advertised do not accept "superior quality bearings". If it does not say "Ball bearings" leave it alone.

Tom.
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pjdog · Posted: Thu Jun 16, 2011 10:10 pm Post subject:

Those are the motors. These will greatly inhance the performance of you helicopter. They will last longer and use less power to fly.

jack
_________________
RC Submarines (3)
RC Planes (20)
RC Boats (3)
RC Helicopters (5) B400-EXI 450 pro-EXI 450-MSR-MCX
DX6I (2)
AMA-952547

platinum · Posted: Fri Jun 17, 2011 5:37 am Post subject:

Tom/jack ..Thanks so much for the info.
I'll do as you advise for my next stock.

platinum
_________________
/Goal : relaxed flying with the least fixing. Very Happy