O.S. Motors OMA-3820-1200 / .20 - .25 Brushless Motor

R1,809.00 R1,499.00

OMA-3820-1200 .25 Brushless Electric Motor from O.S. Motors.
Features:
    * For airplanes using .20 - .25 size 2-stroke engines
    * Stainless steel prop shaft
    * Rigid rear mounting design
    * Centrifugal fan design with angled ventilation holes draws air through the motor and across
      the windings and magnets for improved cooling

Specifications:
    * Rated Power: 440W
    * Rated Voltage: 11.1 - 14.8V
    * Rated Current: 30 - 40A
    * Maximum Current (10 sec): 75A
    * No Load Current: 1.9A
    * Phase Resistance: 21.4 miliohms
    * Maximum Efficiency: 85%
    * kV: 1200
    * Poles: 14
    * Shaft Diameter: 0.20" (5mm)
    * Shaft Length: 0.45" (11.5mm)
    * Weight: 5.46oz (155g)
    * Lead Wire Length: 3.5" (90mm)
    * Length of Motor Can: 1.7" (43.3mm)
    * Diameter of Motor Can: 1.47" (37.5mm)
    * Length/rear of Motor Can to Prop Washer: 2.3" (58mm)
    * Prop Washer Diameter: 0.87" (22mm)
    * Thickness of Motor Mount: 0.12" (3mm)
    * Width of Motor Mount: 1.96" (50mm)
    * Height of Motor Mount: 1.96" (50mm)

Performance for this motor with different props and LiPo cells is as follows (all data with 60A ESC):
Prop Size  ESC  Max Elec. Current  LiPo Cells
9.5 x 7.5  60A  34A  3S
9.5 x 8  60A  35A  3S
9 x 6  60A  48A  4S
9 x 6  60A  31A  3S
10 x 6  60A  37A  3S
10 x 7  60A  42A  3S
11 x 7  60A  50A  3S
12 x 6E  60A  48A  3S
Includes:

.25 Brushless Electric Motor with Backplate, four Phillips Head
Mounting Screws, 3mm Gold Plated Male Plugs attached to leads,
three 3mm Female Plugs with Shrink Wrap, Prop Adapter and
Instruction Sheet

  • Model:OM51011000 .25 Brushless