DolphinRC 13 inch FPV frame kit
Market Demand
As application scenarios such as long-endurance FPV, industrial aerial photography, payload carrying, and long-distance flight rapidly emerge, traditional small-size frames are struggling to meet users’ growing demands for longer range, higher payload capacity, greater stability, and convenient portability. Both hobbyists and industrial users urgently need a truly capable heavy-lift long-range platform—one that delivers extended flight times, supports heavy payloads, and can be easily transported and quickly deployed without spatial constraints.
The Ark X Series was born out of this deep industry insight and original design philosophy. Built with the mission of carrying heavy loads and enabling portable expeditions, we developed this long-X folding frame specifically for 13/15/18-inch heavy-lift long-range drones. Engineered for ultimate structural strength and stability, and designed for maximum portability and efficiency, its custom folding arm structure allows the large frame to be compactly stored, rapidly unfolded, and flown with minimal setup—completely solving the portability, transport, and deployment challenges of traditional large frames.
The spacious airframe offers abundant expansion possibilities, while its powerful payload capacity can accommodate cameras, video transmitters, and a wide range of mission-specific equipment, meeting diverse enterprise-level requirements for inspection, reconnaissance, search and rescue, aerial photography, and more.
Every structural detail is designed for mission readiness; every fold is crafted for efficiency.
Ark X—built to carry heavy loads with resilience, designed to go the distance with portability—stands as the most trusted aerial foundation for field operations.
Technical Specifications
| Item | Details |
|---|---|
| Frame | Ark X13 |
| Configuration | True X |
| Wheelbase | 630mm |
| Frame Dimensions (LWH) | 485*485*51mm |
| Internal Frame Height | 45mm |
| Camera Mount Size | 20mm |
| Flight Stack Mounting Holes | 30.5*30.5mm / Φ3mm |
| Max Flight Stack Size | 45*45mm |
| VTX Mounting Holes | 20*20mm / Φ2mm, 25.5*25.5mm, 30.5*30.5mm / Φ3mm |
| Max VTX Size | 30.5*30.5mm |
| Motor Mounting Holes | 16mm / Φ3mm*4, 19mm / Φ3mm*4 |
| Top Plate Thickness | 3mm |
| Bottom Plate Thickness | 3mm |
| Arm Diameter | 16mm |
| Arm Wall Thickness | 1mm |
| Weight | 764.6g |
| Recommended Battery | Lipo 8S 16000mAh |
| Recommended Motors | 4214 Series 380–680KV, 4215 Series 320–600KV |
| Recommended Propellers | 13-inch |
| Flight Time | 40 min (no payload), 13 min (8kg payload) |
| Recommended Payload | 8kg |
Product Features
True-X Frame Layout:
Balances long-range stability with responsive control, ensuring greater confidence during extended flights.
High Expandability:
The airframe features ample reserved space and a variety of mounting holes, offering strong compatibility with a wide range of devices and accessories for enhanced versatility.
Foldable Design:
Equipped with a custom-developed folding arm structure made of high-strength aluminum alloy, the frame can be compactly stored for portability and quickly unfolded for flight.
High-Precision Cut Carbon Fiber Plates:
Manufactured using high-precision CNC machining, the carbon fiber plates are exceptionally flat, ensuring even stress distribution and outstanding resistance to deformation.
Integrated Injection-Molded Motor Mounts:
Crafted with high-precision molding technology, the motor mounts feature precisely aligned mounting holes to accommodate installation requirements for various mainstream motor models.
Package Contents
Frame ×1
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DolphinRC 13 inch FPV frame ki...