E-flite BL400 Ducted Fan Outrunner, 3500Kv (Twin Pack) - Manual

400 Ducted Fan Brushless Outrunner Instructions
Thank you for purchasing the E-flite 400 DF Brushless Outrunner motor. This motor is an
ideal choice for the E-flite Super Airliner and small Ducted Fan airplanes. The motor will
provide great performance on 66mm diameter fan units with three blade impellors.
400 DF Brushless Outrunner Features:
• Ideal for small Ducted Fan models from 15- to 25-ounces using 3-cell 2100mAh
Li-Po battery packs
• High Torque alternative to inrunner brushless motors
• Quiet, lightweight operation – just 2 ounces (56 g)
• External rotor design
• High quality construction with ball bearings and hardened steel shaft
• Slotted 9-pole Outrunner design
400 DF Specifications
Diameter: 25mm (1 in)
Case Length: 31mm (1.2 in)
Weight: 56g (2.0 oz)
Shaft Diameter: 2.3mm (.09 in)
EFLM1320DF
Kv: 3500 (rpms per volt)
Io: 1.65A @ 10V (no load current)
Ri: .65 ohms (resistance)
Continuous Current: 19A*
Max Burst Current: 23A*
Cells: 6-10 Ni-MH/Ni-Cd or 3S Li-Po
Recommended Props: 3 blade 66mm Ducted Fan Impellor
Brushless ESC: 20-Amp (EFLA311B)
* Maximum Operating Temperature: 175 degrees Fahrenheit
* Adequate cooling is required for all motor operation at maximum current levels.
* Maximum Burst Current duration is 15 seconds. Adequate time between maximum burst
intervals is required for proper cooling and to avoid overheating the motor.
* Maximum Burst Current rating is for 3D and limited motor run flights. Lack of proper throttle
management may result in damage to the motor since excessive use of burst current may
overheat the motor.
Battery Choices:
There are many Li-Po battery brands on the market with several choices for consumers. We
recommend either E-flite or Thunder Power batteries and list some possible choices for the
400 DF Brushless Outrunner motor, all-depending on the airplane application.
EFLB1016 11.1V 1200mAh 3-Cell LIPO, 16GA THP13203SPL 1320mAh 3-Cell 11.1V LIPO, 16GA
EFLB1025 11.1V 1800mAh 3-Cell LIPO, 16GA THP19003S 1900mAh 3-Cell 11.1V LIPO, 16GA
EFLB1035 11.1V 2100mAh 3-Cell LIPO, 16GA THP21003SPL 2100mAh 3-Cell 11.1V LIPO, 16GA