the new KDE Direct 500XF-1175 High-Performance Brushless Motor is an extremely efficient and powerful motor for 
any 500-class Electronic helicopter, and was designed as a powerhouse for the ALIGN TREX 500E/ESP series helicopters. 
In collaboration with Castle Creations, the motor is custom designed for KDE Direct and used the latest Computer-Aided 
Magnetic Field Analysis software to design the most efficient and optimized design for high-level, 3D-competition flight. 
The motor is designed to handle extreme-power setups and has been optimized for governor-control algorithms of the 
Castle Creations ESC product line; making this motor the most capable offering in the RC helicopter marketplace.
    | Kv 
 | 1,450 rpm/V 
 | 
  | Maximum Power 
 | 3,500+ W 
 | 
  | Maximum Efficiency 
 | 90% 
 | 
  | Maximum Voltage 
 | 25.2 V (6S) 
 | 
  | Io (@10V) 
 | 2.8 A 
 | 
  | Rm (Winding Resistance) 
 | 0.008 Ω 
 | 
  | Maximum Speed 
 | 40,000 rpm 
 | 
  | Rotor Poles 
 | 8 (12 Pole Stator) 
 | 
  | Bearings 
 | Quad, 696ZZ/MR106ZZ 
 | 
    | Mount Pattern 
 | M4 x 30mm, M3 x 25mm 
 | 
  | Stator Class 
 | 3527, 1Y 
 | 
  | Shaft Diameter 
 | 5 mm (6 mm Internal) 
 | 
  | Shaft Length 
 | 22 mm 
 | 
  | Motor Diameter 
 | 44 mm 
 | 
  | Motor Length 
 | 48 mm 
 | 
  | Motor Weight 
 | 265 g (290 g with Wires/Bullets) 
 | 
  | Cooling System 
 | High-Volume Radial Fan 
 | 
  | ESC PWM Rate 
 | 12-16 KHz (Outrunner Mode) 
 | 
Finish:
Clear anodize, mirror-polish CNC gloss endbells
Black electro-plate, CNC gloss central core (flux ring)