AOS Supernova 1605 3900Kv Brushless FPV Motor

Chris Rosser—the mad scientist of FPV engineering and 4D magnetic field simulations—actually released a production motor instead of just breaking it on YouTube. Manufactured by the legends at RCinpower, the AOS Supernova 1605 3900Kv is a premium FPV drone motor built for uncompromising 4S cinematic whoops and 3.5-4 inch toothpicks. If you're chasing maximum thrust-to-weight ratio with surgical precision, this is the best 4S brushless motor on the market. Period.

Highlights

• Premium RCinpower Manufacturing: Aerospace-grade 7075 aluminum bell and Japanese bearings for buttery smooth, wobble-free flight.
• 4D Magnetic Field Optimised: Extensive computational fluid dynamics and magnetic simulations mean this motor is ruthlessly efficient.
• Thermal Resilience: Single-wound with heat-resistant insulation rated up to 260°C, because burnt windings are for amateurs.
• N52H Arc Magnets: High-grade curved magnets deliver blistering throttle response and lock-up torque for acute acrobatic control.
• T-Mount Propeller Securing: 1.5mm shaft with a dual-screw T-mount setup ensuring your props stay exactly where they belong.

Why You Want It

Stop flying garbage. The AOS Supernova was birthed from pure data, engineered by the UK's premier drone-testing analytical mind, and crafted by an industry-leading manufacturer. At a staggering 13.3g (with 3cm wires), this motor offers the ultimate power-to-weight ratio for your 4S micro rig. You get pro-level efficiency, eliminating the dreaded mid-flight punch-out sag. Upgrade your fleet and actually feel the difference.

Specs

• Size: 1605
• Kv Rating: 3900Kv
• Stator Configuration: 9N12P
• Shaft Diameter: 1.5mm
• Dimensions: Φ 20.3*14.2mm
• Magnets: N52H ARC
• Mounting Pattern: 9mm M2
• Weight: 13.3g (with 3cm cable)

FAQ

What propeller size works best with the AOS Supernova 1605 3900Kv?

This motor is optimally paired with 3.5 to 4-inch propellers on a 4S battery setup for peak efficiency and thrust.

Who designed and manufactured the AOS Supernova motor?

The AOS Supernova was extensively developed and simulated by FPV YouTuber Chris Rosser, with premium manufacturing handled by RCinpower to ensure top-tier drone performance.

What battery voltage is recommended for this 3900Kv motor?

The 3900Kv rating is specifically tuned for 4S LiPo battery setups to provide the perfect balance of RPM and torque without burning out.

In the Box

• 1x AOS Supernova 1605 3900Kv Motor
• 1x Screw set

#FPVDrone #AOSSupernova #ChrisRosser #RCinpower #ToothpickDrone