Product overview
The RadioLink Eneopterinae F121 is a 74.5 g micro aircraft for education, training and racing, with a compact format suited to indoor flying in limited space. Its CS360 flight controller combines inertial navigation with gyroscope, accelerometer and barometer inputs, while Kalman filtering supports altitude holding. Training progresses through low-speed altitude hold, high-speed altitude hold, stabilize and flip modes. Automatic nose alignment and real-time PID adaptation assist control. Flight data was measured in a good flight environment, and actual control depends on flight conditions.
A carbon-fiber frame carries the propeller guards directly. Their rectangular clip-on construction uses dual-sided, double-layer locking and three-pillar support. Semi-enclosed guards are standard for the FPV transmission kit, while the third-person ready-to-fly kit uses fully enclosed guards. The aircraft can be disassembled and reassembled for practical learning. Electrical and video integration provisions include a PH2.0 battery connector and, in the advanced version, a camera integrated with a 25mW video transmitter for an FPV display or goggles. Green and blue LEDs support direction recognition at night.
The advanced FPV ready-to-fly package is a flight platform with aircraft and control equipment; its actual contents depend on the purchased configuration. Its packing list includes a T8S eight-channel transmitter, Hawkeye 4.3 FPV monitor, holder, two 1S 660mA Li-Po batteries, charger, four guards and four 66mm GEMFAN propellers, plus spares, tools and a carrying bag. Bluetooth enables mobile-app transmitter adjustment. Flight time is 6–8 minutes with the Gensace battery, and airborne control range exceeds 2,000 meters, subject to the good-environment measurement and flight-condition qualification.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer, model and purpose | RadioLink Eneopterinae F121; education, training and racing drone. |
| Mass | 74.5 g. |
| Flight time | 6–8 minutes.With the Gensace battery; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Flight distance | 2 KM.Flight data tested in a good flight environment; actual control depends on flight conditions. |
| Telemetry | OSD real-time telemetry. |
| Altitude-hold sensing | Kalman filtering and inertial navigation using a gyroscope, accelerometer and barometer. |
| Near-surface altitude hold | Altitude hold at less than 10 centimeters height.Near-surface altitude-hold flight; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Flight controller | CS360 flight controller with rotation-vector algorithms supports high-speed ascent and descent.In Altitude Hold Mode; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Launch and heading behavior | Thrown launch at any angle and compass-free heading control responding to rudder input.Heading remains unchanged without rudder-stick movement; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Battery connector | PH2.0. |
| Motor noise control | Software-based motor noise reduction. |
| FPV transmission | 25mW image transmission system with integrated camera, connecting to FPV displays or goggles.Advanced F121 version. |
| Frame and guard mounting | Carbon-fiber frame with directly mounted propeller guards. |
| Propeller-guard construction | Rectangular semi-enclosed or fully enclosed clip-on guards with dual-sided, double-layer locking. |
| Propeller-guard support | Three-pillar support structure. |
| Standard guard configurations | Semi-enclosed guards for the FPV transmission kit; fully enclosed guards for the Third-Person Ready-to-Fly kit.F121 FPV transmission kit and Third-Person Ready-to-Fly kit, respectively. |
| FPV viewing options | Optional FPV goggles or FPV monitor.First-Person Ready-to-Fly version; selection according to competition rules. |
| Transmitter | T8S eight-channel portable gamepad-style controller with Bluetooth mobile-app parameter adjustment. |
| Control range | Over 2,000 meters.Airborne control; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Transmitter RF hardware | TI CC2500 RF chip. |
| Transmitter control hardware | AT9S Pro gimbal assembly, Japanese NOBLE potentiometers and 0.25 µs servo resolution. |
| Flight modes | Four modes: low-speed altitude hold, high-speed altitude hold, stabilize and 360-degree flips. |
| Flip control | One-key flip function supports left and right rolls and forward and backward flips.Default CH6 momentary-switch assignment with stick-assisted control; flight data tested in a good flight environment, with actual control dependent on flight conditions. |
| Adaptive control | Automatic nose alignment and real-time PID self-adaptation.During flight, based on actual conditions. |
| Charging system | CM120 USB LiPo battery charger.For 1S LiPo batteries. |
| Direction lighting | Green and blue LEDs for night flight. |
| Core supplied equipment | 1 F121 aircraft; 1 T8S transmitter; 1 Hawkeye 4.3 FPV monitor; 1 transmitter/monitor holder; 2 × 1S 660mA Li-Po batteries; 4 propeller guards; 1 battery charger marked 1A/2A; 4 × 66mm GEMFAN propellers.Advanced Version (FPV RTF) packing list; actual contents depend on the purchased configuration. |
| Supplied spares and tools | 1 spare DIY shell; 2 receiver-to-flight-controller connection cables; 1 screwdriver; 1 propeller-removal tool; 1 USB cable.Advanced Version (FPV RTF) packing list; actual contents depend on the purchased configuration. |
| Other supplied accessories | 1 night-flight direction LED; 1 hook-and-spring item; 1 user manual; 1 carrying/shoulder bag.Advanced Version (FPV RTF) packing list; actual contents depend on the purchased configuration. |
| Flight-condition qualification | Actual control depends on flight conditions.Flight data tested in a good flight environment. |
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