Product overview
The RadioLink F121 is a complete miniature flying platform built around a carbon-fibre racing frame, coreless motors and 65 mm propellers. Its 74.5 g takeoff weight and 120 mm wheelbase suit practice in small indoor spaces as well as outdoors. The flight controller combines gyroscope, accelerometer and barometer measurements for inertial altitude hold. Slow and fast altitude-hold settings, self-stabilisation and one-button flips provide different control options for training and racing.
The FPV configuration integrates a camera with a selectable 25, 100 or 200 mW video transmitter. Its 5.8 GHz system provides 48 channels, while the camera uses a 1.2 mm lens with a 150° field of view and 800-line resolution. OSD information includes video band, channel, power and flight-battery voltage. A fixed camera base and an antenna protector incorporated into the upper cover support the installation; external LED night lights are also supported.
The FPV ready-to-fly version includes a T8S handheld transmitter and a 4.3-inch display, with goggles or display configurations selectable according to competition rules. Half-enclosure propeller guards are standard on the FPV kit, while the third-person ready-to-fly kit receives full-enclosure guards. Modular removable parts and two translucent covers support assembly activities. Flight duration is 6–8 minutes under good flying conditions, with actual duration affected by operation and conditions. The FPV aircraft-only version excludes the receiver.
Specifications
| Specification | Value & conditions |
|---|---|
| Takeoff weight | 74.5 gAs stated for the aircraft in the product description. |
| Wheelbase | 120 mmAs stated for the aircraft in the product description. |
| Included equipment | T8S handheld transmitter and 4.3-inch FPV displayFPV ready-to-fly version. |
| Manufacturer and model | RadioLink F121 |
| Product purpose | FPV and third-person racing drone for youth aviation modelling training and competition, with inertial altitude hold and integrated OSD. |
| Frame construction | High-strength carbon-fibre racing frame. |
| Included control and viewing equipment | T8S handheld transmitter and 4.3-inch FPV display.FPV ready-to-fly version. |
| Packaged weight | 766 gComplete packaged set. |
| Flight duration | 6–8 minutesFlight data obtained in good flying conditions; actual results depend on operation and flight conditions. |
| Altitude-hold sensor architecture | Gyroscope, accelerometer and barometer fusion with inertial navigation and Kalman-filter altitude hold. |
| OSD telemetry | Integrated OSD reports video band, channel, transmitter power and flight-battery voltage. |
| Battery connector | PH2.0 |
| Motor type | Coreless motors with software noise reduction. |
| Propellers | 65 mm propellers |
| Camera and transmitter configuration | Integrated camera and 200 mW video transmitter.FPV video-transmission version. |
| Video frequency and channels | 5.8 GHz; 48 channels across 6 bands, with 8 channels per band.Integrated FPV camera and video transmitter. |
| Adjustable video output power | 25 mW / 100 mW / 200 mWIntegrated FPV camera and video transmitter. |
| Operating voltage | DC 3–5.2 V (1S)Integrated FPV camera and video transmitter; 1S supply. |
| Operating current | 320 mA at 25 mW / 400 mA at 100 mW / 460 mA at 200 mWIntegrated FPV camera and video transmitter at 4.2 V; current corresponds to the selected output power. |
| Module dimensions | 18.03 × 16.83 × 16.55 mmIntegrated FPV camera and video transmitter. |
| Module weight | 4.4 gIntegrated FPV camera and video transmitter. |
| Lens focal length | 1.2 mmIntegrated FPV camera. |
| Lens field of view | 150°Integrated FPV camera. |
| Camera resolution | 800 TV linesIntegrated FPV camera. |
| Standard propeller guards | Half-enclosure guards standard on the FPV kit; full-enclosure guards standard on the third-person ready-to-fly kit.FPV video-transmission kit versus third-person ready-to-fly kit. |
| Guard and antenna protection architecture | Upper frame cover incorporates a video-transmitter antenna protector. |
| Flight modes and flip control | Four default modes/functions: slow altitude hold, fast altitude hold, self-stabilisation and one-button flips; the default flip switch is the transmitter's CH6 momentary switch.Default flight configuration. |
| Removable parts and supplied covers | Modular removable components support disassembly and assembly for education.Standard aircraft configuration. |
| Protective covers | Black translucent protective upper cover plus an additional white translucent upper cover.Standard supplied covers. |
| Night-light integration | Supports external LED night-flight lights offered in green and blue.External LED accessory. |
| Receiver exclusion | Receiver not included.FPV aircraft-only version. |
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