The DolphinRC Lark X7 is a 7-inch deadcat-style (DC) FPV frame kit built for long-range cruising and high-definition cinematic flying. A 322mm wheelbase carbon fiber chassis with aerospace-grade aluminum alloy hardware keeps the airframe rigid yet light at just 388g, leaving plenty of payload headroom for a GoPro-class action camera and a 6S long-range battery. From assembly and tuning to real-world flying, the Lark X7 is designed to make the whole process straightforward for both seasoned builders and pilots stepping up to their first 7-inch rig. Choose your option from the dropdown menu above: the standard Frame Kit, or the Frame Kit + 250mm Coaxial Cable bundle, which adds a 250mm straight-to-right-angle coaxial cable for clean digital camera-to-VTX wiring.
Key Features
✅ Carbon Fiber + Aerospace Aluminum Structure — High-strength carbon plates paired with aluminum alloy standoffs and camera cage deliver a stiff, crash-resistant airframe that stays stable in high-speed flight and gusty conditions.
✅ Quick-Release 6mm Arms — Thick 6mm arms with a tool-friendly quick-release design let you swap a damaged arm in minutes instead of rebuilding the whole quad.
✅ Integrated Audio-Visual Alert System — Dual high-decibel buzzers help you locate a downed quad fast, while the built-in RGB Bluetooth lighting module is fully configurable through a smartphone app for different scenes and visibility needs.
✅ Adjustable HD Camera Mount with Full Alloy Protection — The 20mm camera mount offers adjustable tilt front and rear, wrapped in an all-around aluminum alloy cage that shields your HD camera in hard landings.
✅ Anti-Interference Antenna & GPS Mounting — A dual-mount layout for the receiver antenna and GPS physically isolates them from strong magnetic sources, improving positioning accuracy on long-range flights.
✅ Builder-Friendly Electronics Bay — Modular split side panels, an external parameter tuning port (adjust settings without opening the frame), and standard 30.5mm stack / 25.5mm + 30.5mm VTX mounting make it compatible with the vast majority of mainstream electronics.
Specifications
Specification
Value
Frame TypeDC (Deadcat)
Dimensions (L × W × H)320 × 300 × 55mm
Wheelbase322mm
Frame Weight388 ± 1g
Camera Mount20mm width, 6mm / 16mm hole spacing
Flight Stack Mounting42 × 42 × 21mm (max), 30.5mm / Ø3mm
VTX Mounting45 × 55 × 30mm (max), 25.5mm / 30.5mm Ø2mm
Motor Mounting Pattern19mm / Ø3mm (4 holes)
Recommended Motors2806 / 2808
Recommended Propellers7 – 7.5 inch
Recommended BatteryLiPo 6S 3500mAh / Li-ion 6000mAh (long-range)
Specification source: DolphinRC official specifications.
Package Includes
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Frame Kit: 1 × DolphinRC Lark X7 7-inch frame kit (carbon fiber plates, aluminum alloy hardware and mounting accessories, unassembled)
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Frame Kit + 250mm Coaxial Cable: everything in the Frame Kit, plus 1 × 250mm straight-to-right-angle coaxial cable
⚠️ Important: This is a frame kit only. Motors, flight controller / ESC stack, video transmitter, camera, receiver, propellers and battery are not included and must be purchased separately. Plan for a 10-inch upgrade path: a future 10-inch variant can be converted by swapping arms and motors only — no need to replace the whole frame.
Lark X7 7-inch frame — purple anodized aluminum with carbon fiber arms — available at SoarSky
Carbon fiber chassis with all-around aluminum alloy camera protection — available at SoarSky
Frame Kit + 250mm Coaxial Cable bundle — straight-to-right-angle cable included — available at SoarSky
Build It Your Way — Recommended Parts
Complete your Lark X7 build with these matching components from our store:
Looking for a smaller build? Check the DolphinRC Nightingale X5 5-inch FPV Frame Kit.
FAQ
Q: What propeller and motor sizes does the Lark X7 support?
A: It is designed for 7–7.5 inch propellers with 2806 or 2808 size motors (19mm / Ø3mm mounting pattern, 4 holes).
Q: Does the frame kit include motors, a flight controller or a camera?
A: No. The package contains the frame and its mounting hardware only — all electronics, propellers and battery are purchased separately, so you can choose the exact setup you prefer.
Q: What battery should I use for long-range flights?
A: DolphinRC recommends a 6S 3500mAh LiPo for general flying, or a 6000mAh Li-ion pack for maximum long-range endurance.
Q: Can I adjust flight controller settings without opening the frame?
A: Yes. The Lark X7 has an external parameter tuning port, so you can plug in and tune without disassembling the airframe.
Q: What is the difference between the two options?
A: The Frame Kit includes the frame and assembly hardware only. The Frame Kit + 250mm Coaxial Cable bundle adds one 250mm straight-to-right-angle coaxial cable — handy for routing a digital camera-to-VTX connection through the frame. Choose the option you need from the dropdown menu before adding to cart.
Note: Package contents cover the frame kit and its assembly hardware only. Electronics and accessories shown in build photos are for illustration and are not included.
Ready to go long-range? Add the DolphinRC Lark X7 to your cart and start your 7-inch cinematic build today.
