MARK4 V2 10 Inch 427mm Carbon Fiber FPV Frame
The MARK4 V2 10 inch is a True-X (X-type) 3K carbon frame for long-range and 10 inch freestyle FPV. Motor-to-motor wheelbase is 427 mm, so it swings 10 inch props. Arms are 7.5 mm carbon — not the thin plates used on 5 inch racers.
Overall footprint is about 268 × 332 mm. The stack bay takes 20×20 mm and 30.5×30.5 mm flight controllers and VTX plates, with about 35 mm of internal height. Camera cage is 19 mm micro (side plates 2.5 mm). Motor bells land on 16×16 mm and 19×19 mm patterns — typical 3115-class long-range motors. Rear of the frame leaves room for a large analog or digital VTX.
Top plate is 2.0 mm; mid and bottom plates are 3.0 mm; connecting / arm bracer plates are 2.0 mm. Kit ships unassembled with carbon plates, arms, and hardware (exact screw kit can vary by batch). Pair with a 60–80 A 6S stack. This is not a 5 inch racing frame.
Geometry
- Layout: True-X (X-type)
- Wheelbase: 427 mm
- Class: 10 inch props
- Arm thickness: 7.5 mm
- Footprint: approx. 268.18 × 332.07 mm
- Stack height inside: 35 mm
Plates and mounts
- Top plate: 2.0 mm · mid / bottom: 3.0 mm
- Connecting / arm bracer: 2.0 mm · camera side: 2.5 mm · back plate: 1.5 mm
- FC / VTX: 20×20 mm and 30.5×30.5 mm
- Camera: 19 mm micro
- Motors: 16×16 mm and 19×19 mm
- Material: 3K carbon fiber
- Typical kit weight: 227–270 g
Typical kit
- Top plate 2.0 mm ×1, mid plate 3.0 mm ×1, bottom plate 3.0 mm ×1
- Arms 7.5 mm ×4
- Camera plates 2.5 mm ×2, arm bracers 2.0 mm ×2
- Front plate 2.5 mm ×1, back plate 1.5 mm ×1
- Standoffs, M3 hardware, anti-slip pad, damping pads (hardware set can vary by batch)
- Battery strap on some batches
Recommended build
- Not included — buy separately
- FC + ESC: F722 60–80 A 6S stack
- Motors: 3115 900KV class (28xx–31xx)
- Props: 10 inch / 1050
- Radio: ELRS or Crossfire
- Camera: 19 mm micro analog (or digital with a matching canopy)
Build notes
- Battery sits on a top strap; leave room for GPS and a large VTX at the rear
- Torque arm screws evenly — 7.5 mm carbon does not like a twisted stack
- Use 10 inch props only; this wheelbase is not for 5 inch or 7 inch props
Geometry
- Frame Class 10 inch
- Wheelbase 427 mm
- Arm Thickness 7.5 mm
- Stack Mount 20×20 / 30.5×30.5 mm
Material & Build
- Material 3K carbon fiber
- Top Plate Thickness 2.0 mm
- Bottom Plate Thickness 3.0 mm
- Weight approx. 227–270 g
Compatibility
- Camera Mount Size 19 mm
- Prop Size Support 10 inch
- Battery Mount Style Top strap