Flywoo Explorer Lr 4 V2 Frame Kit Fpv Frame

Flywoo Explorer LR 4 V2 Frame Kit - 4 inch, Long Range, O3 O4 Pro Walksnail

The Flywoo Explorer LR 4 V2 Frame Kit is a lightweight 4-inch FPV frame for building your own long-range drone in the Explorer LR layout, prepared for the O3, O4 Wide, O4 Pro, and Walksnail Pro Kit digital video systems.

This is not a ready-made drone, but a complete frame kit with carbon fiber elements, TPU, straps, pads, damping elements, and a set of screws. The frame is intended for pilots who want to choose their own stack, VTX, receiver, GPS, motor, and battery.

The V2 design has a modified front end with camera damping on four rubber balls. This is intended to limit the transfer of vibrations to the camera in O4 and similar configurations, where image quality is highly dependent on the correct installation of the video module.

• 4-inch frame for long-range FPV - a base for the lightweight Explorer LR 4 quadcopter with its own selection of electronics.

• Frame weight approximately 52 g - low weight facilitates the construction of a compact long-range kit.

• Compatibility with O3, O4 Wide, O4 Pro and Walksnail Pro Kit - the frame supports popular digital FPV systems.

• Front Camera Mount V2 - four rubber damping balls reduce vibrations around the camera.

• 20 x 20 mm camera support - compatibility with typical camera modules used in digital kits FPV.

• Motor mounts 9 x 9 mm and 12 x 12 mm - the frame fits popular small motors used in 4-inch designs.

• FC + ESC mount 16 x 16 mm and 20 x 20 mm - space for lightweight mini stacks.

• VTX mount 16 x 16 mm, 20 x 20 mm and 25.5 x 25.5 mm - possibility of mounting various video modules.

• Reserved space for GPS and buzzer - the design allows for mounting a GPS module and Flywoo Finder.

• Serviceable design - separate plates, arms, and brackets facilitate repair after damage in the field.

The biggest advantages in practice

• Better build control - you can build your own LR 4 setup instead of buying a pre-made kit with pre-made electronics.

• Greater chance for a clear image - the damped front of the frame helps reduce vibrations visible as jello in the recording.

• Easier long-range equipment installation - the provided places for GPS and finder organize the cable and component layout at the back of the frame.

• A good compromise of size and portability - the 4-inch format gives you more options than a small whoop, but still allows you to keep the design compact.

Who is this frame for?

• Are you building your own 4-inch FPV drone for long-range flights?

• Want to use an O3, O4 Wide, O4 Pro, or Walksnail Pro Kit digital video system?

• Need a frame with space for an FC + ESC, VTX, GPS, and finder.

• You want a lightweight, serviceable design with separate arms and plates.

• You already have experience assembling FPV drones and can select compatible electronics.

Who is it NOT for?

• It is not for someone looking for a ready-made BNF or RTF drone - it's just a frame with mounting accessories.

• It does not come complete with electronics - the kit does not include a flight controller, ESC, VTX, receiver, motors, propellers, or battery.

• It is not a frame for a classic 5-inch freestyle drone - it's a 4-inch long-range design.

• It is not a good choice if you want to mount a large stack or an unusual VTX outside the specified mounting distances.

V2 design and camera damping

The most important change in the V2 version concerns the front camera module. Flywoo implemented a damping structure with four rubber balls that isolate the camera area from some of the vibrations transmitted through the frame.

In practice, this is especially important for O4 and similar digital FPV systems. Even a well-matched drive can generate micro-vibrations, which appear in the image as vibrations or a jello effect. Proper damping of the front of the frame helps create a cleaner system for recording and long-range flights.

Mounting Space for Electronics

The frame supports mounting FC + ESC 16 x 16 mm and 20 x 20 mm. The available space for this section is approximately 19.5 mm high x 32.5 mm wide. These are typical parameters for lightweight mini stacks used in 4-inch builds.

The VTX section supports spacings 16 x 16 mm, 20 x 20 mm, and 25.5 x 25.5 mm. The available space for the VTX is approximately 19.5 mm high x 43 mm wide. This allows the frame to work with a variety of digital video systems, as long as they fit within the specified dimensions.

Video System Compatibility

• DJI O3

• DJI O4 Wide

• DJI O4 Pro

• Walksnail Avatar Pro Kit

The manufacturer also states support for a 20 x 20 mm camera. Before assembly, it is worth comparing the actual dimensions of the camera and air unit with the space in the frame, especially if you are using a non-standard version of the video kit.

Motor Mounting and Drive System

The frame supports 9 x 9 mm and 12 x 12 mm motor mounting holes. These are spacings found in small 4-inch motors for light quadcopters.

The manufacturer does not provide a specific KV, motor size, or recommended propeller for the frame itself in this data sheet. The drive selection should be made for the expected final weight, battery type and flight style.

Parameter | Value

Manufacturer | Flywoo

Model | Explorer LR 4 V2 Frame Kit

Product Type | 4 inch FPV Frame for Long Range

Frame Weight | About 52 g net

Camera Structure | V2 damping structure with 4 rubber damping balls

Supported Camera Size | 20 x 20 mm

Supported Video Systems | O3, O4 Wide, O4 Pro, Walksnail Pro Kit

Motor Mount | 9 x 9 mm / 12 x 12 mm

FC + ESC Mount | 16 x 16 mm / 20 x 20 mm

FC + ESC Space | Approx. 19.5 mm high x 32.5 mm wide

Mount VTX | 16 x 16 mm / 20 x 20 mm / 25.5 x 25.5 mm

VTX Space | Approximately 19.5 mm high x 43 mm wide

Reserved Mounting Spaces | GPS and Buzzer / Flywoo Finder

Manufacturer's Recommended Accessories | Flywoo Finder V1.0, GOKU GM10 Mini GPS

• Top Plate x 1

• Center Plate x 1

• Bottom Plate x 1

• Camera damper plate x 2

• Camera damper support plate x 2

• Front arms x 2

• Rear arms x 2

• Side arm support x 2

• TPU camera mount x 1

• TPU TBS antenna mount x 1

• TPU ELRS antenna mount x 1

• TPU GPS mount x 1

• TPU Finder mount x 1

• Rubber damper ball x 4

• TPU O4 Pro camera protector x 1

• TPU dual VTX antenna mount x 1

• Single VTX antenna mount x 1

• TPU motor protector x 4

• Battery straps 15 x 180 mm x 2

• Fiberglass protective plate for O4 Air Unit x 1

• Battery anti-slip pad x 2

• ESC insulation pad x 2

• Hardware set x 1

FAQ - Frequently Asked Questions

Is the Flywoo Explorer LR 4 V2 Frame Kit a complete drone?

No. It's a frame set with carbon fiber elements, TPU, straps, pads, camera damping, and screws. Electronics, motors, propellers, battery, receiver, and video system are not included.

Which video systems are compatible with this frame?

According to the manufacturer, the frame supports O3, O4 Wide, O4 Pro, and Walksnail Pro Kit. The VTX section supports 16 x 16 mm, 20 x 20 mm, and 25.5 x 25.5 mm spacing.

What FC + ESC stack can be installed?

The frame supports FC + ESC stacks with 16 x 16 mm and 20 x 20 mm mounting holes. The available space is approximately 19.5 mm high x 32.5 mm wide.

Does the frame have room for a GPS?

Yes. The design has a reserved space for a GPS. The manufacturer recommends the GOKU GM10 Mini GPS module as a suitable choice for this platform.

Does the frame support Flywoo Finder?

Yes. The frame has a reserved space for a buzzer / Flywoo Finder. The manufacturer indicates Flywoo Finder V1.0 as a recommended accessory.

Avifly Expert Tip: When assembling the lightweight LR 4, first dry-fit the air unit, stack, GPS, and finder before you start soldering. In such a small frame, cable management often determines whether future servicing will be straightforward or a struggle with every screw. Color: nan Size: nan