<span style="font-size: medium">50 SIZE MOTORS: IF I WANTED TO USE <u>6S LIPO</u>, AS MANY PEOPLE DO ON 50-SIZE PLANES
</span> -And I would probably use a 16x10 or 17x8 prop -Then we would need a lower Kv motor, similar to the Hacker A50-16 S (Kv 378)</p>

a. In this case, my first choice of motor would definitely be: <span style="font-size: small">Turnigy SK3 5055-320kv</span> (369g) or Gens ACE Mars BL4850-340KV (370g)
see: http://www.rcuniverse.com/forum/fb.asp?m=11463483
These 370gTurnigy and Gens Ace motors are completely identical, and are of course made in the same Sunray factory -along with Hacker, Hyperion-Z etc etc.
They have a 5030 stator, and so will be MORE powerful than the Hacker.
And yet they only cost 28% of the Hacker A50-16 S motor (-the Turnigy is $49, the Gens Ace is 80.87&euro; =$103; In comparison the Hacker -in UK and Europe -is $174)
see: http://www.hobbyking.com/hobbyking/s...ner_Motor.html
http://www.gensace.com/epages/genspo...s-BL4850-340KV</p>

b. My second choice of motor would be:
LiPolice LP-4025 /16T-385KV -52.90&euro; =$67 - http://www.der-schweighofer.at/artik...4025_16t-385kv
HYPERION Z4025 16T 368 KV -$65.80 - http://aircraft-world.com/shopexd.asp?id=5611
Foxy C4025/16 385 Kv -&pound;70.95 =$107 - http://www.puffinmodels.com/product.php?prod=2147</p>

All these motors are of course IDENTICAL internally to the Hacker A50-16 S (they all have identical weight and Kv, and the same performance as Hacker), and are all of course made with the same parts as Hacker motors in the same Sunray Tech factory.</p>

<span style="font-size: small">The Hacker A50-16 S motor is far too expensive, at $174.
The identical Hyperion 4025/16T and LiPolice 4025 /16T areboth 1/3 the cost of the Hacker, and yet they arethe very same motor internally.
</span><span style="font-size: medium">So why on earth buy the Hacker when it is 3 times the price, for <u>exactly</u> the same motor...?</span></p>