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Turnigy Aerodrive SK3 - 4240-740KV Brushless Outrunner Motor

Turnigy Aerodrive SK3 - 4240-740KV Brushless Outrunner Motor

65 Reviews

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SK3-4240-740

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Product Description

Turnigy SK3 brushless motors are yet another step forward in motor evolution.

Once again we instructed our engineers to develop a motor that would not only rival but surpass the quality of the leading motors on the market today using the best quality magnets, bearings, and materials available.

The result is an outstanding series of motors that are efficient, strong, and robust enough for the most discerning modeler.

All of the SK3 series use quality double-shielded bearings, sintered neodymium magnets (the strongest type of permanent magnet commercially available), and a string wound stator to ensure accurate and consistent winding each and every time.

The Turnigy SK3 motors are suited to modelers who are seeking a top-quality brushless motor without compromise.

Features:
• Double shielded bearings
• Sintered neodymium magnets
• String wound stator
• High-quality finish
• Super-smooth operation

Specs.
Turns: 10T
Voltage: 4~5S LiPo
RPM/V: 740KV
Internal resistance: 0.013 Ohm
Pole Count: 12
Max Loading: 50A
Max Power: 870W
Shaft Dia: 5.0mm
Bolt holes: 25mm
Bolt thread: M3
Weight:195g
Motor Plug: 3.5mm Bullet Connector

Included:
Motor
Mount & screws
Prop adapter

Performance Data (4S):
11x7: 516W, 36A, 2406g static thrust
12x6: 598W, 42A, 2603g static thrust
13x4.7: 633W, 45A, 2560g static thrust

Performance Data (5S):
10x4.7: 510W, 28A, 1997g static thrust
11x4.7: 688W, 39A, 2549g static thrust
11x5.5: 776W, 44A, 2920g static thrust

Product Specifications

Kv(rpm/v) 740.00
Max Current (Motor) (A) 50.00
Resistance (mh) 13.00
Max Voltage (V) 19.00
Power (W) 870.00
Shaft A(mm) 5.00
Length B (mm) 48.00
Can Diameter C(mm) 42.00
Can Length D(mm) 40.00
Total Length E(mm) 70.00

Dimension Diagram Guide

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Reviews

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BURDA plane 1.80 | Verified Buyer

Overall
Quality
Value

power

Aug 18, 2022

excellent engine and economic

turbo timber | Verified Buyer

Overall
Quality
Value

motor

Aug 01, 2022

good quality excellent power

physics | Verified Buyer

Overall
Quality
Value

Hobbyking needs to sell parts for its motors

Jan 06, 2022

I love this motor, but despite being sold for 2+ years, the spares for it remain out of stock. Hobbyking, please support your motors. Otherwise, I love these motors.

Dazz | Verified Buyer

Overall
Quality
Value

Disappointed

Nov 27, 2021

Don't know whether this motor is any good, snapped the prop shaft drive, and have been waiting 3 months for replacement which is still not in stock

Owllen | Verified Buyer

Overall
Quality
Value

Runs quietly

Nov 08, 2021

I’ve bought this motor twice now. It runs well and unusually quietly.

Eu | Verified Buyer

Overall
Quality
Value

Yes

Nov 08, 2021

OK!

Rich | Verified Buyer

Overall
Quality
Value

Excellent motor

Jun 23, 2021

Ordered 2 . Worked as advertised.
Have used in past & will continue to use in the future!! Excellent, budget motor!

Digger | Verified Buyer

Overall
Quality
Value

Great service

Jun 14, 2021

Very good product & service great stuff

rick | Verified Buyer

Overall
Quality
Value

TURNIGY AERODRIVE SK3 - 4240-740KV BRUSHLESS OUTRUNNER MOTOR

Feb 05, 2021

did earlier review on this, did wrong motor. this was put on a pt17 with 44 in wing span. works well on 4s 5000 60c battery esc 80 amp swinging an 10x7 3 blade prop

rick | Verified Buyer

Overall
Quality
Value

TURNIGY AERODRIVE SK3 - 4240-740KV BRUSHLESS OUTRUNNER MOTOR

Feb 05, 2021

this little baby rips my f22 foamy from flite test with an 8x8 prop. Quiet, smooth running motor on 80 amp esc on a 3s 2200 battery

Manuals/Files

Customer files

sk 4240 setup mine	Download [205]
P2030261.JPG	Download [829]
SK3-4240(DT3520-14P) MOTOR (edited).pdf	Download [122]
SK4240-750.JPG	Download [74]
J.J.	Download [3]
J.J.	Download [3]