RATEFPV L40 Pro 4-Inch Long-Range Freestyle GPS ELRS FPV Drone - 4S 1505 2800KV
RATEFPV L40 Pro 4-Inch Long-Range Freestyle GPS ELRS FPV Drone - 4S 1505 2800KV
RATEFPV
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Overview
The RATEFPV L40 Pro is a 4-inch long-range freestyle GPS ELRS FPV drone built around a 4S power system, 1505 2800KV motors, a 40A flight-control stack, and a DC-style carbon-fiber frame. Its swept-back layout is designed to keep propellers outside the view of the wide-angle camera configuration for cleaner FPV footage.
The frame uses separate arms and baseplate construction, allowing a damaged arm to be replaced individually. Integrated Bluetooth enables wireless parameter adjustment from a compatible phone-based tuning app.
Key Features
- RATEFPV F4V4 40A stack with clock synchronization, large solder pads, 32-bit ESC, and 40A MOSFETs.
- Four RATE 1505 2800KV motors with 7075 split stators, N52 arc magnets, and stepped shafts.
- RATEFPV ELRS 2.4G Nano receiver.
- RATE 5.8G high-gain antenna with ultrasonic welding, LDS antenna technology, and low VSWR.
- Built-in buzzer to help locate the aircraft after landing.
- 3.6 mm replaceable carbon-fiber arms and separate arm/baseplate design.
- HQProp T4x2.5 three-blade polycarbonate propellers.
- Bluetooth wireless tuning for PID, rate, and parameter adjustments.
Camera and Video Configuration
The O4 Wide configuration uses a CNC aluminum camera mount and a 148-degree wide-angle lens. The DC swept-back trapezoid frame is intended to reduce propeller intrusion into this wide field of view. Supported video-system configurations listed for the frame include analog VTX, DJI O4, and DJI O4 Pro.
From July 2, 2026, the L40 O4 version is updated to an O4 Wide configuration with a CNC case kit. For DJI O4 and O4 Pro batches made after February 2026, disable air-unit stabilization before recording; use flight-controller gyro data with Gyroflow for post-stabilization when required.
Specifications
| Model | RATEFPV L40 Pro |
|---|---|
| Class | 4-inch |
| Power system | 4S |
| Flight controller / ESC stack | RATEFPV F4V4 40A |
| Motor | RATE 1505 2800KV |
| Receiver | RATEFPV ELRS 2.4G Nano |
| Propeller | HQProp T4x2.5 |
| Wheelbase | 175 mm |
| Frame | L40 Pro DC carbon-fiber frame |
| Arm thickness | 3.6 mm |
| Weight | 178 g with O4 configuration |
| Camera field of view | 148-degree wide-angle lens on O4 Wide configuration |
| GPS provision | RATE M10 Nano GPS listed as an optional configuration |
Battery and Flight-Time Reference
A RATE 3000mAh 4S battery is specified for the O4 Wide-angle setup, with a stated flight time of more than 20 minutes. Battery availability depends on the selected option and may require separate ordering.
Support
For configuration guidance or product support, contact rcdrone.top.
Details
The L40 Pro combines an O4 camera setup with a RATE F4V4 40A stack, 1505 2800KV motors, and a 2.4GHz ELRS Nano receiver.
A high-gain 5.8GHz antenna, built-in buzzer, HQProp T4x2.5 propellers, and optional GPS support equip the compact carbon-fiber platform.
Built-in Bluetooth allows compatible phone-based tuning for flight parameters without connecting a cable.
The CNC aluminum camera mount supports the 148-degree O4 Wide lens configuration for an expansive FPV view.
Its swept-back DC frame is designed to keep propellers outside the wide-angle camera view; the O4 Wide setup is specified with a 3000mAh 4S battery for over 20 minutes of stated flight time.
Parameter details cover the flight-control components, motor, frame, wheelbase, weight, and mounting dimensions.
Frame specifications outline the PNP power combo and available GPS, receiver, and video-system configuration options.
The accessory list identifies mounting hardware, camera parts, antenna components, and other included frame accessories.