Product overview
The DolphinRC Lark X7 inch FPV Frame Kit provides the structure for a 7-inch FPV aircraft intended for flight and HD aerial imaging. Its DC-type architecture uses high-strength carbon fiber and aviation-grade aluminum alloy, with 6mm quick-release arms and segmented front and rear side plates. Dimensions are 320mm × 300mm × 55mm, wheelbase is 322mm, and weight is 388g ± 1g. Adjustable front and rear camera mounts support different shooting angles, while full-coverage aluminum alloy lens protection surrounds the lens installation.
Electronics integration is bounded by maximum mounting spaces of 42mm × 42mm × 21mm for the flight stack and 45mm × 55mm × 30mm for the VTX. Recommended components are 2806 or 2808 motors, 7–7.5-inch propellers, and LiPo 6S 3500mAh batteries or Li-ion 6000mAh batteries for extended endurance. Configuration choices comprise the frame kit and the frame kit with a 250mm coaxial cable. Built-in equipment includes two locating buzzers, multi-segment RGB lighting and Bluetooth lighting control through a mobile app. An external tuning port allows parameter adjustments without frame disassembly.
Specifications
| Specification | Value & conditions |
|---|---|
| Product name | DolphinRC Lark X7 inch FPV Frame Kit |
| Frame type | DC Type |
| Dimensions (L×W×H) | 320mm × 300mm × 55mm |
| Wheelbase | 322mm |
| Weight | 388g ± 1g |
| Camera mount size | 20mm |
| Camera mount hole spacing | 6mm, 16mm |
| Flight stack mount size | 42mm × 42mm × 21mm (MAX)Maximum mounting dimensions. |
| Flight stack mount hole spacing | 30.5mm / ∅3mm |
| VTX mount size | 45mm × 55mm × 30mm (MAX)Maximum mounting dimensions. |
| VTX mount hole spacing | 25.5mm / ∅2mm, 30.5mm / ∅2mm |
| Motor mount size | 19mm / ∅3mm × 4 |
| Recommended battery | LiPo 6S 3500mAh, Li-ion 6000mAh (extended endurance)Li-ion 6000mAh is recommended for extended endurance. |
| Recommended propeller | 7–7.5 inches |
| Recommended motor | 2806, 2808 |
| Exterior design | Geometric line-cut styling and custom paint finishes provide visual recognition. |
| Structural materials | High-strength carbon fiber and aviation-grade aluminum alloy combine structural rigidity with weight control. |
| Audible and visual alerts | Two built-in high-decibel buzzers support drone locating; multi-segment RGB lighting provides visual illumination. |
| Lighting control | Multiple customizable RGB lighting modes with Bluetooth and mobile-app control.Lighting modes are customized through a mobile app using the built-in RGB Bluetooth module. |
| Modular side plates | Segmented front and rear side plates can be installed or removed, with open-source side plate files supporting maintenance.Side plate installation and removal depend on the electronics configuration. |
| Arm construction | 6mm high-strength arms with a quick-release structure for easier maintenance. |
| Receiver antenna and GPS mounting | Dual fixed mounting structures for the receiver antenna and GPS are designed to isolate magnetic interference and improve positioning accuracy. |
| Electronics compatibility | Compatibility with 90% of mainstream electronic components. |
| Tuning access | An external tuning port supports parameter adjustment without disassembling the frame.Parameter adjustments use the external tuning port without frame disassembly. |
| Camera angle adjustment | Front and rear camera mounts provide multiple adjustable shooting angles for aerial photography and scene documentation. |
| Planned upgrade path | A planned upgrade to a future 10-inch variant retains the frame while replacing motors and arms.The future 10-inch upgrade requires replacement motors and arms. |
| Supplied configuration options | Frame Kit; Frame Kit+250mm Coaxial CableFrame kit configuration, with an optional 250mm coaxial cable. |
| Lens protection | Full-coverage aluminum alloy lens protection. |
| Intended purpose | FPV frame for flight and HD aerial imaging builds. |
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