I RECEIVED THIS MESSAGE FROM rosnik.</p>
ORIGINAL: rosnik: a few months ago I bought one TURGINY L5055A 400Kv. I replaced the Hacker 50-14S on the Angel with this motor, to test it.
And it was not very good. It only had half the power in comparison to the Hacker
</p>
THIS WAS MY REPLY TO HIM:
I have a few points to make:
1. The Turnigy L5055A-400 motor: -
http://www.hobbyking.com/hobbyking/s...ner_400kv.html
is almost certainly an XYH motor (see pics -the rear housing of the L5055 motor is amost identical to the XYH ... )
This motor is probably the XYH C 5055 / 08-which also has a Kv of 400 - see:
http://en.xingyaohua.com/html/play/411.html</p>
2. The L5055A-400 only weighs 293g -so it cannot have the same power as a 345g Hacker motor.</p>
3. The L5055A-400 motor has a stator which is only 4020 in size. We can see this from the HK website, because the can length for this motor is 25mm (i.e. measurement D on the diagram of the motor) and the stator will be ~4-5mm shorter than this =a 4020 stator for this motor.</p>
4. In comparison, the Hacker A50-14 S has a 4025 stator, and so is bound to be more powerful than the Turnigy L5055A motor.</p>
5. However, the Turnigy SK3 5055-430kv (the motor we have suggested as an excellent alternative to the A50-14 S), has a 4030 stator, and will be MORE powerful than the Hacker A50-14 S.</p>
You will see, rosnik, that this will be the case ... I will "eat my hat" if I am not correct ...
Pics show: 1, Turnigy L5055A-400, 400Kv motor; 2, XYH C 5045 motor, rear view; the XYH 5055 motor looks identical</p>