Motor iFlight Defender 25

The new Defender 25 engine is designed for the ultra-lightweight builds that are changing the modern world of FPV drones. Weighing in at less than 250g, Defender 25 models are now even more build-friendly with the new Whoop-style AIO (All-in-One) generation and iFlight's Defender 25 frame.

Specifications

Model: Defender 25 Motor

KV: 4150KV

Weight (with wires): 8g ± 0.5g

Dimensions: φ17.7 × 12.5 mm

Line-to-phase resistance: 188 mΩ

Input voltage: 4S

Maximum current: 12.03A

Maximum power: 200.8W

Mounting holes: 3 x 9×9mm, φ2mm (3 mounting holes)

Rotor: Segmented dome

Shaft diameter: 1.5mm

Shaft protrusion: 1.8mm ± 0.2mm

Wire length: 60mm/26AWG

Magnets: N52H (curved)

Configuration: 9N12P

Bearing type: NMB

Bearing specification: φ5×φ2×2.5mm

Winding: Single core copper

Equipment

1 × Defender 25 1404 engine

4 × M2 × 5 mm screw

2 × M2 × 7mm screw

This engine is an excellent choice for building ultra-lightweight micro drones that meet today's FPV flight requirements.