<span style="font-size: small">CONT:
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5. We know that the (relatively new range of) Turnigy SK3 motors are made in the same Sunray Tech factory as Hacker, and that they are pretty much identical to Hacker -both internally and also largely externally. And yet the Turnigy SK3 motor is only 28% of the cost of the Hacker; And this particular Turnigy motor ( SK3 5055-430kv) actually has a larger stator than the Hacker, and is a slightly heavier motor.
There seems no real way to explain exactly why the Hacker costs almost 4 times as much as the similar Turnigy SK3 motor.</p>

6. It has been noted by many people before, that Turnigy SK3 motors are very similar to Hacker, Hyperionmotors, in terms of weight, Kv, power etc -acrossthe whole range of motor size, from small 16g motors up to very large 900g motors.
For instance, as far as 30-size motors are concerned, the Turnigy SK3 3542-800Kv 14T motor is indistinguishable from the Hacker A30-14-L motor also fromthe E-F Torque 2814T/820 motor. The Turnigy SK3 3542-1185kv 10T motor is indistinguishable from the Hacker A30-10-L motor etc etc.
see: http://www.rcuniverse.com/forum/fb.asp?m=11427116
-However, the same principle does not carry through for these 50-size motors. There are no obvious SK3 motors withidentical weight and Kvto the 345g Hacker A50 -S motors.
see: http://www.rcuniverse.com/forum/fb.asp?m=11427948
The closest to the Hacker A50-14 S (Kv 424) appears to be the Turnigy SK3 5055, which has an almost identical Kv of 430kv. It is also a 14T motor like the Hacker. However, at 370g it is 25g heavier than the Hacker, and also it has a 4030 stator rather than the 4025 stator of the Hacker. The larger stator should actually make the SK3 motor capable of generating more power and thrust than the Hacker motor.</p>

7. It was also useful to compare the LiPolice and the Hacker motor. We know that LiPolice motors are also made in the Sunray Tech factory, along with Hacker, Hyperion, Torque motors and all the other "typical Sunray brands" etc etc. The LiPolice LP-4025 /16T is an identical motor to the Hacker A50-16 S, the only difference is cosmetic in that the LiPolice has differently machined end housings, and has a green colour on the outside. The 2 motors give identical performance.
-And yet the LiPolice motor costs just &pound;44.63, whilst the identical Hacker costs 2.7-fold more (&pound;114.69). It is difficult to fathom just why the Hacker motor might cost nearly 3 times as much, when the only real difference between them is that Hacker are purple, whilst LiPolice are green.</p>

8. Finally, why are E-Flite motors so expensive ?There seems nothing special about E-Flite motors, indeed they just seem like all the others. We know they are made by the Himark Electronic &amp; Model factory (a.k.a. ChinaHimark), which also makes Himax motors(sold in Europe as"JP-Energ" and Topmodel "XPower" motors).The XPower XC5020/14 motor is a similar size to the E-Flite 60, and yetcosts only &pound;70. So exactly why does the E-Flite 60 motor cost &pound;111.31 ? Andwhat is so much better about the E-Flite motor that it should cost more than 5 times as much as the XYH C 5055 motor ?
-It seems little wonder that several "clones" or "copies" of E-Flite motors (some perhaps made in the very same HiMark factory where E-Flite motors are made ...) -like Turnigy G-series motors and Tacon motors -have become very popular, because they cost only 30% of the same size E-Flite motor.
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