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TGY AerodriveXp 90 SK Series 50-65 270Kv / 2100W

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TGY AerodriveXp 90 SK Series 50-65 270Kv / 2100W


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TURNIGY AerodriveXp SK Series
AerodriveXP SK Series motors are designed for those who want the very best in outrunner technology for their R/C plane. Typically an efficiency improvement of around 8-10% can be seen over similar classed motors. This is in part due to the following;
Stator Laminations: .2mm
Magnet Type: N45SH
Bearings: Dual oversize (Japanese) 
Model: SK50-65 270
Kv: 270rpm/v
Turns: 8
Resistance: 38m-Ohm
Idle Current: 0.7
Shaft: 8mm
Weight: 434g
Rated Power: 2100W
ESC: 80A
Cell count: 6-8S
Suggested Prop: (20~22inch)
Tested props:
20x8@ 32amp on 6S
21X8 @ 43amp on 6S
22X12 @ 66amp on 6S

Power equivalent : Large 60-120 size glow engines. The low Kv and 18x10 prop swinging ability make this a good motor for large 3D up to 5kg

*Includes mount and prop adapter accessories (not shown)
  • Kv(rpm/v) 270.00
  • Max Current (Motor) (A) 0.00
  • Resistance (mh) 38.00
  • Max Voltage (V) 29.00
  • Power (W) 2100.00
  • Shaft A(mm) 8.00
  • Length B (mm) 63.00
  • Can Diameter C(mm) 50.00
  • Can Length D(mm) 43.00
  • Total Length E(mm) 86.00

Dimension Diagram Guide

  • attributeset-10


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Sydsky | Verified Buyer

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Customer Rated

Sep 24, 2011

Looks like these motors along with all the SK series are to be discontinued and be replace with the SK3 series, however, so far, I'm not impressed with what i've seen from other members who purchased the new ones series. I.e. from initial inspection and performance, motor windings are thinner, magnets are fewer, but more importantly, the bearings, are not japanese, but inferior chinese. And they don't seem to have the equivilent torque compared to the old SK series from what other members have said. I won't be getting rid of my old Sk series motors in hurry. Incidentialy, you can still find the old Sk series if you do a search for their makers, emp and type in, eg, 5065.

bracam1966 | Verified Buyer

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Customer Rated

Jul 23, 2011

bon moteur utiliser sur hangar9 puls 60xt environ 4.2kg en 8s 16par10 xtr de hk 48A max a 30c celsius..1460w a 78pcntd efficasite sois 1140w efficasse...4000 8s zippy 20c..les accus chaud mais dans la moiene..montage prevu sur le blue noze

flyer88 | Verified Buyer

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Customer Rated

Jul 14, 2011

Set-up: Helios 90 F3A


APC 18 x 10

Max Amps 65

Max power 2060 watts

ESC Super Brain 120

Excellent performance with great battery life. Could not have found a better set-up for this plane. Unlimited performance. A

And no loose magnets either.........

Happy Landings


| Verified Buyer

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Certified Buyer Rated

May 22, 2011

Pura fora, recomendo para aeros pesados.

Jony | Verified Buyer

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Certified Buyer Rated

May 06, 2011

Grandioser Motor! Harmoniert wunderbar mit dem TURNIGY Sentilon100A HV 5-12S BESC (Ver4).

Habe ihn in meiner Extreme Flight Extra mit 1.8m Spannweite eingesetzt. Damit erreiche ich Spitzenstrme von ca. 68A mit einer Engel 18x11 Kohle Luftschraube.

Damit ist alles mglich inkl. Torquen, auch wegsteigen aus dem Torquen ist kein Problem.

Mit einer 20x10 APC war die Leistung noch einmal deutlich hher. Damit hat der Motor ca. 80A gezogen.

Angetrieben wird der Motor von 8S (2x4S) Zippy Flightmax 5000 mAh mit 25C.

Die Lager des Motors sind nicht die besten, die man kaufen kann. Ich habe mir bei Conrad (ja, ist ne Apotheke, aber der einzigste Hndler, der alle lieferbar hatte) Kermaik Hybridlager gekauft. Ich habe schon Beitrge gelsen, dass das den Stromverbrauch um ca. 10 senken soll bei gleicher Ausgansleistung.

Die Kermaik Hybridlager sind bereits bei mir angekommen, allerdings bin ich noch nicht dazugekommen sie zu verbauen.

Die Leistung von 2100 Watt ist (auch mit den originalen Lagern) absolut plausibel.

Customer | Verified Buyer

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Customer Rated

Apr 30, 2011

Type your review here.

Try to include as much data asThis engine is of poor quality: the first flight unscrewing the plate and blocking later: magnet off.


not happy | Verified Buyer

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Customer Rated

Feb 22, 2011

Got my motor today !!!

Well its not what i expected... The shaft of the motor inst fixed solid and the entire can of the motor just sits to one side and rests on the magnets. removed the grub screws , tried to reposition it.... no good.

If you turn the motor the magnets just slide and grind on each.

so i have a totally unusable product, that will cost me more to send it back than its worth.

HK wont replace it unless it goes back to HK...... so in effect i loose $$$ if i ship it back or i keep it as a useless motor / paper weight.

Thanks HK for ripping me off and talking my money !

heavyj | Verified Buyer

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Customer Rated

Jan 02, 2011

Flying about 12 lbs an Aeroworks .90 - 1.20 electric conversion with a 100a ESC swinging a 19x10 thin electric. We've been flying this for 1 year and the motor has been flawless so far. We just upgraded from 4s2p 3800 MAH to 4s2p 5000 mah batts and removed 200g of lead from the nose.

ronald | Verified Buyer

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Certified Buyer Rated

Jan 01, 2011

Super Motor Danke HK

Headhunter | Verified Buyer

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Customer Rated

Dec 25, 2010

Just got my shipment in today. After a brief inspection it was apparent most of the complaints were true. I spun the motor by hand and felt clicking. I had already decided to replace the original bearings with ceramics anyway. After careful disassembly I found the windings are fair but loose, so I put a drop of med CA on the far end to keep them in place. The large bearing is from Singapore but the dual bearings were unmarked but higher grade. The rotor seems unbalanced due to uneven spacing and epoxy quantities. Will have to correct that while I wait on the Ceramic bearings.
More later.

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