http://thrustmotors.com/Look at the 40 it has perfect KV and it swings a 14in prop.
Motor specs
Outside Diameter 37.2mm
Length 41mm
Weight (gr/oz) 140gr / 4.9oz
Motor Shaft Dia. 5.0mm
Mounting Bolts Dia. M3
Max efficiency Current A * 35 A
Peak current A (15 sec)* 45 A
Battery pack range ** 2~4 LiPo / 6-12 NiCd
Poles 14
KV rpm/V 850kv
Recommended ESC PA Quantum 45
Peak Watts 500 watts
VOX 14X7 - Perfect match to the Thrust 40! Excellent higher range propeller for 3D, freestyle aerobatics
and pattern flying. Excellent balance of thrust and speed that allows a wider performance
envelope for aggressive flying such as insane tumbles, walls, hard snaps, spins and fast KE spins.
Double check the integrity of your plane’s motor box to ensure it can withstand the increased
loads. This is THE prop for the Ultimate AMR especially for low and slow 3D. Even though it is
much larger prop than the APC 13x6.5E it draws lower amps and produces a whopping 90.56oz of
thrust!! This clearly demonstrates the efficiency and advantage of the VOX over the APC.
Adequate airflow to cool down the motor and ESC is mandatory, as well as strict throttle
management.
Thrust® cooling design took a complete departure in the current thinking by engineering a
High Velocity Force Cool Ventilation (HVFCV) into the rotor end bell as well as taking full advantage of
thermodynamic properties of the stock material itself. HVFCV is achieved through a set of solid metal turbine
impeller blades painstakingly CNC milled as an integral part of the rotor end bell assembly, which not only provides
the positive force cool ventilation by drawing fresh cool air through the stator and magnets, but also doubles up as a
heat pump to first draw excess heat from the rotor assembly itself and then act as a heat exchanger by expelling it
through the air stream contacting the solid metal turbine blades as it spins at high velocity. Micro ridges,
intentionally CNC cut into the rotor, further multiples the end bell’s surface area and serve as radiators to further
boost thermal dissipation achieving unparallel cooling and henceforth having the ability to swing larger propellers
than other conventional outrunner motors of similar class while remaining considerably cooler and more efficient.
There is more to the “Cool” look of the CNC exterior casing than meets the eye, and looks can be deceiving. Under
the hood, is where serious engineering comes into play. With only the highest quality materials and components
used in the manufacture, the new PA Thrust® motors are manufactured with the tightest tolerance making it
possible to maintain the smallest air gap between the stator and shaped neodymium magnets, significantly boosting
torque and thrust. The relatively silent and vibration-free operation of the motor is a testament to the tight
tolerance manufacturing regime we have adopted specifically to harness the maximum power produced by the
motor (within the limits of today’s technology) for the sole purpose of swinging the prop. This allows the motor t
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swing propellers of at least one size larger than any contemporary motors in its class while running cool with
maximum efficiency.