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Here to Order A Bargain for Quality and Performance. Designed for gear drive applications, Ultrafly’s D/13/32 brushless, sensorless “outrunner” motor is a unique and affordable option for park flyer models weighing below 1kg (2.2lb). Its high-quality construction and precise CNC tooling enable this motor to operate at higher RPM without serious vibration. The D/13/32 fits in many 300/400 size gearboxes, and features a shaft diameter and screw holes comparable to a 400 motor. Used with the appropriate gear ratio, the D/13/32 can turn propellers ranging from 6 inch to 11 inch diameter. You can power it with NiCd or NiMH batteries having 7-10 cells, or with a 2-3 cell Li-Po battery. See the motor application reference table below for more details. 
Specifications Shaft Diameter: 2.3mm Shaft Length: 12mm Motor Diameter: 23.5mm Motor Length: 43mm Motor Weigh: 42g (1.42oz) Distance of Mounting Holes: 16mm & 17mm Mounting Screw: M3x3mm Maximum Input Power: 160watt Maximum RPM: 40,000 Maximum Operating Temperature: 100°C
D/13/32 Brushless Motor Application Reference Table | Airplane Type | Battery | Gear Ratio | Propeller | | 250-340g 3D models | 3S Lipo | 3 to 1 | APC 10x4.7SF | | 250-340g 3D models | 3S Lipo | 2.33 to 1 | APC 8x3.8SF | | 340g-500g 3D models | 3S Lipo | 3.9 to 1 | APC 11x4.7SF | | 340g-500g 3D models | 12V NiMH | 3.9 to 1 | APC 11x4.7SF | | 350-450g Sports Models | 9.6V NiMH | 3 to 1 | APC 9x6SF or 8x8E | | 450-600g Sports Models | 12V NiMH | 3 to 1 | APC 9x6SF or 8x8E | | 450-600g Sports Models | 3S Lipo | 3 to 1 | APC 9x6SF or 8x8E | | 400-500g Speedy models | 9.6V NiMH | 2.33 to 1 | APC 7x5E | | 500-600g Speedy models | 12V NiMH | 2.33 to 1 | APC 7x5E | | 500-600g Speedy models | 3S Lipo | 1.93 to 1 | APC 6x5.5E | | 600-750g Hi-Wing Trainers | 9.6V NiMH | 3 to 1 | APC 9x6SF or 10x4.7SF | | 750-1000g Hi-Wing Trainers | 12V NiMH | 3 to 1 | APC 9x6SF or 10x4.7SF | | 750-1000g Hi-Wing Trainers | 3S Lipo | 3 to 1 | APC 9x6SF or 10x4.7SF | | 650-800g Gliders | 9.6 NiMH | 3 to 1 | 9x5 or 9x6 folding prop | | 750-1000g Gliders | 12V NiMH | 4 to 1 | 10x6 folding prop | | 750-1000g Gliders | 3S Lipo | 4 to 1 | 10x6 folding prop | | GWS Warbirds 400-500g | 9.6-12VNiMh | 3 to 1 | APC 9x6SF or 8x8E | | GWS Estarter, Beaver, Big stick | 8.4-9.6V NiMh or 2S Lipo | 3 to 1 | GWS 9x6, 10x4.7 or APC 9x6SF, 10x4.7SF | | Ultrafly PC-9, Cessna 182 | 9.6V-12VNiMh | 3 to 1 | APC 9x6SF or 8x8E | | Ultrafly Extra 300S | 12VNimh or 3S Lipo | 3 to 1 | APC 9x6SF |
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If you purchase a
brushless motor, you will also need a
brushless controller of equal or greater
current rating. In general, its better to
get the higher current controller because it
can be used with larger motors in future. |
Cautions:
Speed Control: You must use a
brushless, sensorless speed control.
Cooling: You must provide
proper cooling to avoid exceeding the 100°C
limit. Overheating will damage the magnets and windings, and is not covered
under warranty.
Over current: Please use a current
meter to control the battery cell count and the propeller size. When changing
propeller size or battery type, you must measure the current. You must limit
current to the specifications above, or less, to avoid damage to the motor.
Reduce prop size or battery cell count to reduce current.
Max input watt:
The structural design of every motor will limit its heat dissipation. Watt input
is proportional to heat generated. The maximum watt input for:
- B series = 180
watts
- C series = 200
watts
- D series = 160
watts
Do not exceed this limit or you may burn out the motor.
Rotation: Switch any two of the
three wires between the speed controller and motor to reverse motor direction.
NEVER reverse polarity from battery to speed controller. | 
![Ultrafly D Series - [UF-PSBLDG32] D/13/32 motor w/ Gearbox N (3:1). You will not believe how small or light the D/13/32 but don't be fooled, these motors are rated at 3200KV and can take as much as 150W input!](../buy_models/images/ultraf3.jpg)
Download Ultrafly D13-32 Brushless Manual
View Ultrafly Motor Chart
