<span style="font-size: small">There are several points to make, from this investigation of motors and their prices:</span></p>

1. I was very surprised indeed (and really shocked) about the huge, quite enormous range of price, for motors that are basically similar -about 350g in weight, and that all have a Kv ~420 RPM / V. -These are not small motors, and neither are they large. They are mid-size brushless motors.
The majority of the motors in this list cost between &pound;21 and &pound;45, and it was only really the Motrolfly, the E-Flite and the Hacker that cost a huge amount more. The Motrolfly was almost &pound;100, and the E-Flite and Hacker were well over &pound;100.</p>

2. The price of the very similar size motors in this list, varies from &pound;21.33 all the way up to &pound;114.69 for the Hacker A50-14 S motor. It is possible that similar motors from Kontronik, Neu, Lehner and Plettenberg might have been even more expensive than the Hacker -however I have not checked those makes.
-The motors in this list have generally similar properties, they have a similar Kv, and are likely to give similar levels of current, prop RPM and thrust -when used with the same prop and the same number of LiPo cells.</p>

3. It is very striking indeed, that the XYH C 5505 / 08 motor costs just &pound;21.33 -this is just 18% of the cost of the Hacker A50-14 S motor (in the UK). The Hacker motor costs 5.4 times as much as the XYH motor.
I ask again -is the Hacker A50-14 S going to give us a 5.4 times better performance than the XYH motor ? Will the Hacker generate 5.4 times more thrust ? Will the Hacker last 5.4 times as long as the XYH motor ? Is the Hacker 5.4 times better quality than the XYH motor ?
I am completely unsure about what might be the actual basis for the absolutely massive gulf in the prices of these motors. What might be the reason for the enormous difference in cost between the XYH and the Hacker motor ?</p>

4. Many people find that XYH motors are very good quality indeed, and that they also give extremely good performance. A great many people are happy with XYH motors.
After all, XYH motors will have been sold in their many millions. This is partly because the standard Turnigy "Aerodrive" chrome/gold motors, soldover manyyears by HobbyKing in large numbers, were all XYH C-type motors. The slightly higher quality "Turnigy AerodriveXp SK" black/ silver motors, also sold by Hobbykingover several years,were all XYH N-type motors (-these have now been largely discontinued -just a few remain on the HobbyKing website). Most people who have used either Turnigy Aerodrive standard or the AerodriveXp SK motors have been very happy with them. So it is not as if XYH have any obvious poor quality or performance, that might explain their relatively low price.
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