Flyfishrc Volador Vd4 O4 Pro Frame

FlyFishRC Volador VD4 O4 Pro Deadcat 4-inch FPV Frame

FlyFishRC Volador VD4 O4 Pro is a Deadcat 4-inch FPV frame designed for compact builds with the DJI O4 Air Unit Pro system, as well as analog and HD configurations. The design weighs approximately 127g including printed components and utilizes T700 carbon fiber, aiming for stiffness, durability, and a clear camera view without the propellers in the frame.

The DC system, or deadcat, moves the arms and propellers out of the FPV camera's field of view. This is important for cinematic, long-range, and dynamic flights, where a clean DVR and no props in the image are as important as the strength of the frame itself.

• 4-inch Format - frame for 4-inch propellers, good for light and agile FPV builds.

• Deadcat System - limits the visibility of the propellers in the frame and improves image reception from the FPV camera.

• DJI O4 Pro Compatibility - structure prepared for mounting the O4 VTX system and camera.

• T700 Carbon Fiber - rigid frame base, important for limiting resonances and maintaining flight precision.

• CNC Side Plates - reinforce the front part of the frame and stabilize the camera area.

• Silicone Camera Damping - Helps reduce the jello effect in DVR recordings.

• Dual Mounting Positions - More flexibility in stack, VTX, and motor placement.

• Rounded Carbon Edges - Less risk of chafing wires during assembly and service.

The Biggest Advantages in Practice

• Clearer FPV Image: The Deadcat system allows you to build a quad where the propellers don't interfere with the camera's view.

• Fewer Jello Problems: CNC Side Plates and Silicone Camera Damping Help Reduce Vibrations Transferred to the Video Module.

• More Configuration Freedom: The frame supports several popular mounting standards for FC, ESC, VTX, and motors.

• Better Assembly Quality: Carbon with chamfered edges is more user-friendly. for cables than sharply cut boards.

Who is this frame for?

• I'm building a 4-inch FPV drone for the DJI O4 Air Unit Pro and I want a clear view without propellers in the frame.

• I'm looking for a deadcat frame for cinematic, freestyle cinematic, or lightweight long-range flights.

• I want a T700 carbon fiber frame with aluminum CNC parts around the camera.

• I need compatibility with popular 20x20 mm and 30.5x30.5 mm stacks.

• I'm planning an analog or HD build and I want flexible VTX mounting.

Who is NOT this frame for?

• This is not a frame for a classic 5-inch freestyle with 5-inch propellers.

• This is not A ready-made BNF or PNP drone requires separate selection of electronics, drive, propellers, and battery.

• It will not be the right choice if you need a true-X frame with the most symmetrical geometry for aggressive freestyle.

Construction and assembly

The main structure of the frame combines T700 carbon fiber with CNC aluminum elements. The carbon fiber is responsible for the stiffness and durability of the structure, and the CNC plates reinforce the camera area, which in FPV drones is particularly vulnerable to loads during falls and hard landings.

The manufacturer has used precise edge chamfering. In practice, this is important not only visually, but also for service - cables running close to the carbon fiber plates are less likely to be cut or abrasion during assembly and subsequent operation.

The frame also has locking mechanisms designed to physically limit structural resonances. In FPV builds, resonances affect gyroscope performance, Betaflight filtering, and camera image quality, so a stiff frame with a well-damped camera helps achieve a cleaner flight.

Compatibility with FPV Electronics

The Volador VD4 O4 Pro offers two stack mounting standards: 20x20 mm M3 and 30.5x30.5 mm M3. This allows the frame to fit many popular flight controllers and ESCs used in 4-inch builds.

For video systems, VTX mounting holes are provided: 20x20 mm M2 and 25.5x25.5 mm M2. The manufacturer declares compatibility with most analog and digital HD systems available on the market, and the design has been specifically tailored to the DJI O4 Pro system.

Parameter | Value

Brand | FlyFishRC

Model | Volador VD4 O4 Pro

Frame Type | Deadcat FPV Frame Kit

Propeller Size | 4 inches

Wheelbase | 183 mm

Material | T700 Carbon

Weight | Approx. 127 g, with printed parts

Frame Dimensions | 195 x 155 x 33 mm

Arm Thickness | 4 mm

Top Plate Thickness | 2 mm

Middle Plate Thickness | 2.5 mm

Bottom Plate Thickness | 2.5 mm

Reinforcement Thickness | 4 mm

CNC Side Plate Thickness | 5 mm

FPV Camera Spacing | 19 mm / 20 mm

FC/ESC Stack Mounting | 20 x 20 mm M3 / 30.5 x 30.5 mm M3

Stack Mounting Height | 22 mm

VTX Mounting | 20 x 20 mm M2 / 25.5 x 25.5 mm M2

Motor Mounting | 12 x 12mm, 2mm holes / 16 x 16mm, 3mm holes

Colors | Black / Yellow

• 1x FlyFishRC Volador VD4 O4 Pro Frame Kit

FAQ - Frequently Asked Questions

Does this frame fit the DJI O4 Air Unit Pro?

Yes. The manufacturer describes this model as an O4 Pro frame, and the design has CNC side plates and a damped camera mount prepared for the DJI O4 Pro system.

Will the propellers be visible on an FPV camera in this frame?

The Deadcat system was designed to limit the visibility of the propellers in the frame. The manufacturer states that the frame provides an unobstructed flight view without propellers in the image.

What stack can be mounted in the Volador VD4 O4 Pro?

The frame supports the 20 x 20 mm M3 and 30.5 x 30.5 mm M3 mounting standards. The stack mounting height is 22 mm.

Is the frame suitable for an analog VTX?

Yes. The manufacturer declares compatibility with most analog and digital HD systems available on the market. The VTX mounting holes are 20 x 20 mm M2 and 25.5 x 25.5 mm M2.

Motor mounting supports the standards: 12x12 mm with 2 mm holes and 16x16 mm with 3 mm holes. This allows you to choose the typical motor for lighter 4-inch builds and more powerful setups, as long as the propeller diameter and frame geometry remain within the design. Avifly expert advice: Before final assembly of the frame, test mount the DJI O4 Pro, camera, antenna, and stack. In a 4-inch deadcat, cable routing has a significant impact on serviceability, VTX cooling, and the risk of insulation abrasion on carbon. Color: nan Size: nan