Re: posts #94 to #106 of this thread:
<span style="font-size: medium">MY OWN OPINION ON THE 50-SIZE MOTORS -with a Kv ~420, weight ~350g. Which one would I use ?</span>
If I was building a Sebart Angel 50 / Wind 50, or similar plane like: 3DHS Osiris 62", or an Extreme Flight, Precision Aerobatics, or E-Flite 50-size plane (e.g. the new E-Flite Carbon-Z Splendor designed by QQ Somenzini) -and I wanted to use 5S LiPo, something like a 16x8 prop and I was choosing a good motor :</p>
1. My first choice would definitely be: <span style="font-size: small">Turnigy SK3 5055-430kv
</span>The reasons are:
a. I have several of these SK3 motors, and they all perform superbly. I have not had one bad SK3 motor.
b. They are made in the same Sunray factory as Hacker, Z-Hyperion etc; And they use basically all identical parts to the Hacker motors. And yet the Turnigy is only 28% of the cost of the Hacker A50-14 S.
c. The Turnigy SK3 5055 has a 5030 stator -the Hacker motor only has a 5025 stator -and so the Turnigy motor will be MORE powerful
d. For a real excellent quality motor with a great pedigree, the SK3 costs very little more than the XYH motor
e. The SK3 motors are basically a Hacker / Hyperion-Z / Torque motor, for 25% to 30% of the cost ...
f. The Turnigy SK3 5055-430kv has excellent user comments on the HK website.</p>
2. My second choice would be: <span style="font-size: small">XYH C 5065 410kv motor
</span>This motor has really excellent user comments: see
http://www.giantshark.co.uk/xyh5065-...-p-404748.html
e.g.
" ...This went in my Sebart Angel Evo 50E but on trying a 16x10e on 6s lipo it was 55amp as this motor is rated 40amp I proped down to 15x8e this was 46amp this has power to fly great, so a good buy ..."
" ... A cracking motor. Used in my 81/2 lb Hurricane On 6 cells 16x10 APC prop 1780 watts 78 amps 15x8 JXF wooden 1580 watts 66 amps. Perfect for purpose and great value No hesitation for 5/5 ..."
" ... This motor is something else! Perfect for that large scale plane. I have fitted it into a 1/4 scale T61 motor glider, yet to fly. Static thrust tests look like there is more than enough thrust. The only problem was the need to open the prop diameter up to fit the mounting, as it was too large for the prop. Everything else, brilliant ..."
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