EFLM4046A Power 46 Brushless Outrunner Motor, 670Kv Key Features * Equivalent to 40- to 46-size glow engine for planes weighing 4–7 lb (1.8–3.2 kg) * Ideal for 25- to 40-size 3D airplanes up to 5 lb (2.2 kg) * Ideal for models requiring up to 925 watts of power * High-torque, direct-drive alternative to inrunner brushless motors * Includes mount, prop adapters and mounting hardware * External rotor design—6mm shaft can easily be reversed for alternative motor installations * Slotted 12-pole outrunner design * High-quality construction with ball bearings and hardened steel shaft * Quiet, lightweight operation Overview The Power 46 is designed to deliver clean and quiet power for .40 to 46-size sport and scale airplanes weighing 4 to 7 pounds (1.8–3.2 kg), 25- to 40-size 3D airplanes up to 5 pounds (2.2 kg), or models requiring up to 925 watts of power. It’s an especially good match for Hangar 9 .40-size trainers like the Alpha .40 (HAN2450), Arrow .40 (HAN2625) and warbirds like the T-34 Mentor 40 (HAN2425). Also a great match for sport planes like the Ultra Stick 40 (HAN1675 or HAN1690), Seagull Spacewalker 40 (SEA2050), and smaller sport 3D planes like the Twist 40 (HAN2650). Product Specifications Type: Brushless outrunner Size: Replacement for 40- to 46-size glow engines Bearings or Bushings: One 6 x 15 x 5mm Bearing, and Two 6 x 12 x 4mm Bearing Wire Gauge: 14 Recommended Prop Range: 12x8 to 14x10 Voltage: 14.4 to 19.2 RPM/Volt (Kv): 670 Resistance (Ri): .04 ohms Idle Current (Io): 3.90A @ 10V Shaft Diameter: 6mm (.24 in) Overall Length: 55mm (2.15 in) Weight: 290 g (10.0 oz) Overall Diameter: 50mm (2.00 in) Diameter: 50mm (2 in) Length: 55mm (2.15 in) Continuous Current: 40A Maximum Burst Current: 55A (15 sec) Cells: 12–16 Ni-MH/Ni-Cd or 4–5S Li-Po Speed Control: 60A brushless