Product overview
The RadioLink QAV250 is a 5-inch GPS FPV aircraft for racing, progressive flight training and high-speed aerial imaging, including F9U competition use. The advanced version has a carbon-fiber frame. Its propulsion equipment comprises 2207-1900KV brushless motors, a 55A four-in-one ESC, 5-inch 51466 propellers and a 6S 1300mAh 95C battery. CrossRace Pro supplies position-hold, altitude-hold, self-leveling and manual modes. A one-button change from manual flight to position hold initiates hovering, while low voltage or signal loss triggers GPS automatic return.
Video integration uses the controller’s built-in OSD chip and digital interface, with direct plug-in support for DJI O3/O4 and Walksnail CADDX HD systems. Digital ready-to-fly packages default to Avatar V2 video equipment and a camera; analog packages default to a 600mW transmitter and CADDX Stable camera. The Avatar HD Pro Kit configuration offers 1080P/60fps and a 4 km transmission distance. Advanced-version flight figures apply to favorable flying conditions, with actual operation dependent on flight conditions; this qualification also applies to the 50 cm positioning accuracy, 180 km/h position-hold speed and 15-minute endurance.
Procurement choices include digital and analog aircraft packages with goggles or displays, plus aircraft-only packages. The digital display configuration supplies a 5-inch portable IPS screen and Avatar FPV VRX receiver; analog viewing options include 3-inch goggles or a 4.3-inch display. Viewing-device packages include an AT9S Pro radio transmitter and HOTA T6 balance charger. Aircraft-only packages supply the flight platform with a battery, propellers, tools, straps and case, rather than a bare airframe. Geofencing and configurable waypoint routes provide additional integration options for automated flight, including adjustable route speed and altitude.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | RadioLink QAV250 5-inch GPS FPV racing drone. |
| Competition application | F9U drone racing at the 2025 National Aerospace Model Championships. |
| Frame material | Carbon fiber.Advanced version. |
| Flight controller | RadioLink CrossRace Pro combines autonomous flight functions with manual control. |
| Maximum flight speed | 180 km/h.Position-hold mode; advanced-version flight data obtained in favorable flying conditions, with actual operation dependent on flight conditions. |
| Endurance | 15 minutes.Advanced-version flight data obtained in favorable flying conditions, with actual operation dependent on flight conditions. |
| Flight-data operating qualification | Flight data were obtained in favorable flying conditions; actual operation depends on flight conditions.Advanced version. |
| Electronic speed controller | 55A four-in-one ESC. |
| Motors | 2207-1900KV brushless motors. |
| Propellers | 5-inch propellers, specification 51466. |
| Flight battery | 6S 1300mAh 95C battery. |
| Video integration | Built-in OSD chip and digital video interface, supporting direct plug-in connection of DJI O3/O4 and Walksnail CADDX HD digital video systems.CrossRace Pro flight controller. |
| Default digital video equipment | Walksnail Avatar V2 HD video transmitter and camera.Digital FPV ready-to-fly package. |
| Default analog video equipment | 600mW video transmitter and CADDX Stable camera.Analog FPV ready-to-fly package. |
| HD video transmission | 1080P at 60 fps; 4 km transmission distance.Walksnail Avatar HD Pro Kit configuration; advanced-version flight data obtained in favorable flying conditions, with actual operation dependent on flight conditions. |
| Flight modes and hover recovery | Position hold, altitude hold, self-leveling and manual modes; one-button switching from manual to position hold initiates hovering. |
| Automatic return | GPS automatic return.Low voltage or loss of signal. |
| Geofence | Configurable geofence. |
| Waypoint flight | Configurable waypoints and automatic route planning, with adjustable flight speed and altitude. |
| GPS and positioning accuracy | TS100 GPS with interference filtering and rejection; 50 cm positioning accuracy.TS100 GPS configuration; advanced-version flight data obtained in favorable flying conditions, with actual operation dependent on flight conditions. |
| Radio control system | RadioLink AT9S Pro, 12 channels, DSSS and FHSS; 4000 m airborne control distance.AT9S Pro configuration; 4000 m distance applies to airborne control. |
| Charger | DC/PD dual-input smart balance charger; maximum 300W power, 15A charging current and 94% operating efficiency.HOTA T6 charger configuration. |
| Goggle display | 1920 × 1080 screen resolution; 1080P/100fps.Walksnail Avatar HD Goggles X configuration. |
| Goggle latency and mass | Average minimum latency: 22ms; mass: 290g.Walksnail Avatar HD Goggles X configuration. |
| Field of view | 50°.Walksnail Avatar HD Goggles X configuration. |
| Diopter adjustment | +2.0 to -6.0.Walksnail Avatar HD Goggles X configuration. |
| Interpupillary adjustment | 54mm to 74mm.Walksnail Avatar HD Goggles X configuration. |
| Screen refresh rate | 100Hz.Walksnail Avatar HD Goggles X configuration. |
| Video bitrate | Maximum 50Mbps.Walksnail Avatar HD Goggles X video configuration. |
| Supplied aircraft-only equipment | One digital QAV250 aircraft, one 6S 1300mAh 95C battery, four 5-inch 51466 propellers, one 1/4 ratcheting detachable propeller tool, two hex screwdrivers in sizes 2.0 and 1.5, two battery straps and one carrying case. This is a flight-platform package, not a bare airframe; a radio transmitter, viewing device and charger are not included in this packing list.Digital aircraft-only package. |
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