R3 3115 900KV Brushless Motor for Multi-rotor FPV Crossing Machine UAV 3-6S

This R3 3115 900KV brushless motor is designed for multi-rotor FPV crossing machines and UAV applications. It offers a 900KV rating suitable for 3-6S battery systems, providing reliable thrust for racing, freestyle, and aerial photography builds. The motor body is constructed from lightweight plastic, making it a practical choice for weight-sensitive drone projects. Whether you are replacing a damaged motor or building a new crossing machine, this unit delivers consistent performance. The single rotor package comes in a colour box for convenient storage and handling.

Features and Construction

This motor is built with a plastic body and plastic components, prioritising weight reduction for multi-rotor aircraft. The 900KV rating works with 3-6S LiPo batteries to generate appropriate RPM for propellers typically used on FPV crossing machines.

Motor Build and Materials

The R3 3115 uses plastic for both the outer shell and internal structural parts, as specified in the source. This material choice helps keep the motor lightweight, aiding overall flight efficiency and agility. The design is straightforward and functional for UAV use.

Performance Specifications

With a 900KV rating, this motor is tuned for moderate to high RPM on 3-6S setups, suitable for 5-inch and similar propellers on crossing machines. The KV rating indicates the RPM per volt, providing predictable throttle response for FPV flying.

Uses and Placement

This motor fits multi-rotor platforms used in FPV crossing, freestyle, and UAV applications. It is a replacement or upgrade component for standard 3115-size motor mounts.

FPV Crossing Machine Use

For racing and freestyle drones, the 900KV rating offers a good balance of thrust and efficiency when paired with appropriate propellers and a 4S or 6S battery. It supports the high-power demands of aggressive flying.

UAV and Aerial Platform Use

In UAV builds, this motor provides reliable propulsion for camera rigs or other payloads. The 3-6S compatibility offers flexibility for different power system configurations.

Benefits and Buying Value

This motor offers a straightforward, cost-effective option for multi-rotor enthusiasts needing a replacement or spare. Its plastic construction contributes to a lightweight airframe, while the 900KV rating works with common FPV battery voltages.

Lightweight and Practical

The plastic materials help keep overall drone weight down, which can improve flight times and manoeuvrability. The motor is ready to install with standard mounting hardware.

Why Choose This Product

If you need a 900KV brushless motor for a 3-6S multi-rotor FPV crossing machine, this unit provides a straightforward solution. It is supplied as a single rotor in a colour box, suitable for direct installation or as a spare.