GEPRC GEP-DoMain4.2 Frame

The GEPRC GEP-DoMain 4.2 is a 4.2-inch DeadCat (DC) cinematic freestyle frame engineered to keep propellers completely out of your FPV camera view. Built around high-definition digital systems such as the DJI O3 Air Unit, it combines 4.0 mm carbon fibre arms with CNC-machined aluminium alloy side plates for rigid camera protection and clean, vibration-free flight footage.

Key features

• DeadCat frame geometry ensures zero propellers appear in your onboard FPV or HD recording feed.
• CNC aluminium alloy camera side plates deliver structural rigidity and direct camera protection for digital FPV transmitters.
• Dual 20x20 mm and 25.5x25.5 mm mounting patterns on both flight controller and VTX positions for versatile electronics stacking.
• Supports 9x9 mm and 12x12 mm motor mounting patterns, accommodating popular 18xx to 21xx class brushless motors.

Specifications

• Model: GEP-DoMain 4.2
• Frame Geometry: DeadCat (DC)
• Wheelbase: 195 mm
• Max Propeller Size: 4.2 inch
• Arm Thickness: 4.0 mm
• Top / Bottom Plate Thickness: 2.0 mm / 2.5 mm
• FC Mounting Pattern: 20x20 mm, 25.5x25.5 mm
• VTX Mounting Pattern: 20x20 mm, 25.5x25.5 mm
• Motor Mounting Pattern: 9x9 mm, 12x12 mm
• Camera Mounting Width: 19 mm, 20 mm
• Weight: Approx. 110 g

Ideal for agile sub-compact cinematic builds, the frame pairs effectively with 4.2-inch propellers and 4S to 6S powertrains for smooth freestyle and proximity flying.