Turnigy Aerodrive SK3 - 4250-410KV Brushless Outrunner Motor

Very solid little motor. I have a few of these. High quality. Connections are solid and heavy duty. Box contains motor mount and prop adapters. The motor by itself (without a prop) is nearly silent even at high rpm. I am completely satisfied with this product.

SK3 Motors are very good quality and nicely machined for a reasonable price. Highly recommended product. have several of them in use and all are working perfectly.

having some trouble getting power from this motor. but dont use on a 4s as its to sluggish. i was only making 270 watts on 4s on a 14x10 at 16amp,haha. best results go for 6s on a 14x10 im now getting 810watts at only 35 amp. i did try a 18x6 on a 4s and made 400watts at only 25amp but i dont have the ground clearance for this. all in all ive given this motor hell and it just keeps smiling at me. sk3 all the way

good quality. runs almost vibrationless. no-load current is as low as 1.55amps at 24v. unfortunately, as always, rear mount spins not concentric, inducing virbration when used. this is rather inacceptable for a high performance high value motor as sk3 series. please hk, get this fixed and get rid of the fancy packing. no one wants to spend money on feeding his trash can.

Excellent motor! With 6S LiPo and 13x10 prop it produces well more than 4 kilo static thrust at 35A. See Pk-HhKErtG4 and 6SXu5ENNWXw on youtube.

en 16 8 3.2gk simprop big excel ,montee rapide a 45degres,,,,avec seulement 38A a 80pcnt 6s2700 25c zyppi sa donne 8grimpe a 250m moyenne a 3,85v/cel...recommander

moteur tres silencieux et tire un big excel simprop de 3.2kg a 45degres facile jusqu a 300m de haut sans probleme..le moins impossible de mettre les gaz a fond d un coup en 4s avec 17par11carbone helice repliable..probleme syncro avec pluch 60A...vais essayer 6s avec 16par8

Running 6s, 2x 2200mah 3s pack in series, with a 13x8 prop, works well, but the prop adaptor is very soft, poor thread and bent on a poor landing!

good motor i run it on aa gp dazzler with 15-8 prop on 6 cell and it pulls 41amp the down side is the prop bolt is to small around 1/4 inch and i snaped it

I have so far bench run this motor to get the power and rpm figures. This motor is going in a HK Katana 50E, so I wanted to get an idea of how it would run. Tests are on 6s, 2200mah 40C packs.
14x8 - 8200rpm, 1040W, 21.25V, 46A

13x10 - 8400rpm, 840W, 21.5V, 39A

The motor is packaged very nicely (normally doesn't excite me, but this looked kinda special!)
Motor looks to be high quality and runs very nicely. Based on the results, the resistance of 26 mOhm looks good, and Kv somewhere around 420.

Will update with results when I've flown the 50E.