Product overview
The RadioLink F121 Pro is a compact FPV racing, training and practice aircraft with a 121 mm wheelbase and 74.5 g takeoff weight. Its controller combines gyroscope, accelerometer and barometer inputs for inertial altitude control, with adaptive PID adjustment during flight. Four default modes provide altitude hold, self-leveling, manual flight and one-button flips. Flight endurance is 6–8 minutes with a new, fully charged battery, 200 mW video transmission and manual racing flight. Flight data apply to good flying conditions; actual performance depends on operation and flight conditions.
The aircraft combines a carbon-fiber body, modular removable components, coreless motors and 65 mm propellers. Its construction supports assembly and disassembly exercises for training. Partial propeller guards attach directly to the body; full guards are not included. The integrated camera and 200 mW video transmitter offer selectable 0° or 15° camera angles, and the upper cover incorporates antenna protection. Integration provisions include a PH2.0 battery connector and a beacon power interface operating at aircraft battery voltage. Electronic timing equipment and other external devices require separate installation.
The FPV ready-to-fly package supplies the aircraft, an eight-channel T8S transmitter, 3-inch dual-antenna goggles, three batteries designated 1S 660mA, two chargers, guards, spare propellers, tools and a carrying case. A white customizable shell and night-flight light are also supplied. The goggles receive across 5.362–5.945 GHz and have a 480 × 272 display with a 16:9 aspect ratio and 230 cd/m² brightness. Their built-in 3.7V 1800mAh lithium-polymer battery supports 3.5 hours of use when fully charged; charging uses standard Micro-USB at DC 5V/1.5A.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | RadioLink F121 Pro FPV racing drone |
| Product configuration | Ready-to-fly flight platform with an eight-channel T8S handheld transmitterFPV ready-to-fly configuration. |
| Takeoff weight | 74.5 g |
| Wheelbase | 121 mm |
| Flight endurance | 6–8 minutesNew, fully charged battery; video transmitter at 200 mW; racing flight in manual mode. |
| Flight performance conditions | Flight performance depends on operation and flight conditionsFlight data measured in a good flight environment; actual operation and flight conditions affect results. |
| Flight modes | Altitude hold, self-leveling, manual and one-button flipDefault flight modes. |
| Altitude-control architecture | Gyroscope, accelerometer and barometer fusion with inertial navigation and Kalman-filter altitude control |
| Control adaptation | Automatic heading correction and adaptive PID adjustmentDuring flight. |
| Camera and video transmitter | Integrated camera and 200 mW video transmitter |
| Camera mounting angles | Selectable 0° or 15° camera angle |
| Antenna protection | Upper cover incorporates a video-transmitter antenna protector |
| Body and guard mounting | Propeller guards attach directly to the carbon-fiber body |
| Guard coverage | Partial propeller guards supplied; full propeller guards excludedFactory configuration. |
| Propellers | 65 mm high-efficiency propellers |
| Motor type | Coreless motors with software noise reduction |
| Battery connector | PH2.0 |
| Beacon and timing interface | Beacon power interface operates at the aircraft battery voltageExternal electronic timers and other devices require separate installation. |
| Night-flight lighting | Night-flight light suppliedFPV ready-to-fly set. |
| Assembly architecture | Modular, removable components support user assembly and disassembly |
| Supplied equipment | 1 aircraft; 1 T8S transmitter; 1 pair of 3-inch FPV goggles; 3 batteries designated 1S 660mA; 4 propeller guards; 2 chargers with 1A/2A options; 8 propellers of 65 mm diameter; 1 white customizable shell; 2 spare receiver cables; 1 Phillips screwdriver; 1 propeller removal tool; USB cable; 1 flight-status light; 1 spare throttle-centering accessory; 1 manual; 1 carrying caseFPV ready-to-fly package. |
| Goggle configuration and screen size | 3-inch dual-antenna FPV gogglesFPV goggles. |
| Communication frequency | 5.362–5.945 GHzFPV goggles. |
| Screen resolution | 480 × 272FPV goggles. |
| Charging input | DC 5V/1.5A, standard Micro-USBFPV goggles. |
| Aspect ratio | 16:9FPV goggles. |
| Screen brightness | 230 cd/m²FPV goggles. |
| Video formats | NTSC/PAL with automatic switchingFPV goggles. |
| Built-in battery | 3.7V 1800mAh lithium-polymer batteryFPV goggles. |
| Goggle operating time | 3.5 hoursFPV goggles with a fully charged battery. |
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