Product overview
The RadioLink SU27 is a fixed-wing sport and aerobatic aircraft built around a molded polypropylene airframe. Molded reinforcements protect the head and integrated motor base, while carbon fiber strips reinforce the main and tail wings. Its Byme-DB controller combines three-axis gyroscope and acceleration sensing with attitude, control and digital filtering algorithms. Selecting Stabilize Mode and releasing the sticks assists recovery to level flight. Gyro Mode provides stability assistance without automatic leveling, while Manual Mode leaves all flight movements to the pilot without controller or gyro assistance.
The factory-installed propulsion system combines a 2S-compatible SZ-SPEED 1306 4000KV brushless motor, FLYCOLOR 15A ESC and GEMFAN 3052 polycarbonate propeller. The ESC stops propeller rotation when an obstacle triggers its locked-rotor protection. Flight time is 9 minutes with the described Gensace 2S (7.4V) 600mAh 25C LiPo battery; the RTF packages instead list a 15C battery. The wind rating is moderate breeze. R8XM battery-voltage telemetry requires connections to the ESC, battery and receiver telemetry port, supports up to 6S (25.2V), and needs no extra module.
The RTF configurations supply an aircraft, eight-channel T8FB or T8S radio, battery, CM210 2S balance charger, propeller, charging cable, screwdriver, fiber tape and shoulder bag; the T8S package adds a USB cable. Control distance with T8FB/T8S is up to 4000 meters. CM210 accepts Type-C 5V DC input, automatically adjusts charging current and specifies 1.5A charging, 82% efficiency and a 20-minute full charge for a 600mAh battery. Initial wiring requires flight-mode switch setup and controller calibration. Byme-DB adds a fourth output and supports delta-wing configurations with rudders; replacement components use standard parts and interfaces.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | RadioLink SU27. |
| Aircraft purpose and controller | Sport and aerobatic airplane with a Byme-DB flight controller. |
| Controller sensing and processing | Full-attitude, control and digital filter algorithms; 3-axis gyroscope and 3-axis acceleration transducers. |
| Flight modes | Three: Stabilize Mode, Gyro Mode and Manual Mode. |
| Level-flight recovery | Byme-DB assists automatic return to level flight.Stabilize Mode activated and control sticks released. |
| Gyro assistance limitation | Three-axis gyro assists stability without automatic return to level flight.Gyro Mode. |
| Manual control | All flight movements are manually controlled without flight-controller algorithm or gyro assistance.Manual Mode. |
| Airframe material | Fully molded polypropylene (PP) airframe. |
| Head and motor mounting structure | Molded reinforcements protect the head and motor base; the motor base integrates with the fuselage. |
| Wing reinforcement | Carbon fiber strips embedded in the main wings and tail wings. |
| Packaging options | Bag packaging or colorful boxes. |
| Battery-voltage telemetry | R8XM battery-voltage telemetry without an extra module; maximum telemetry battery: 6S (25.2V).Wire connected to the ESC, battery and R8XM telemetry port. |
| Motor and ESC configuration | 2S-compatible 1306-4000KV brushless motor and 15A ESC.Factory-installed power system. |
| Motor model | SZ-SPEED 1306 4000KV. |
| ESC protection | FLYCOLOR 15A ESC with locked-rotor protection that stops propeller rotation on encountering obstacles.Propeller encounters an obstacle. |
| Propeller | GEMFAN 3052. |
| Propeller material | Polycarbonate. |
| Supplied battery | One Gensace 7.4V 600mAh 15C battery.SU27 RTF packages. |
| Power-system battery description | Gensace 2S (7.4V) 600mAh 25C LiPo battery. |
| Flight time | 9 minutes.Gensace 2S (7.4V) 600mAh 25C LiPo battery. |
| Wind rating | Moderate breeze. |
| Control distance | Up to 4000 meters.With a Radiolink T8FB/T8S radio controller. |
| Radio channels and transmission | 8 channels; FHSS spread spectrum with 67 pseudo-random frequency hopping.T8FB/T8S radio configuration. |
| Charger and input | CM210 charger with Type-C 5V DC input and automatic charging-current adjustment.SU27 RTF version. |
| Charging performance | 1.5A charging current; 82% charging efficiency; full charge in 20 minutes.600mAh battery charged using CM210. |
| Flight controller setup | No parameter adjustment required; configure the flight-mode switch and calibrate the flight controller.Initial wiring. |
| Controller output and integration | Fourth channel output added relative to Byme-D; supports delta-wing configurations including those with rudders.Byme-DB flight controller. |
| Replacement interfaces | Batteries, motors, ESCs and servo gears use standard parts and interfaces. |
| T8FB package contents | One each: SU27 aircraft, 8-channel T8FB radio, CM210 balance charger for 2S, Gensace 7.4V 600mAh 15C battery, GEMFAN 3052 propeller, CM210 charging cable, screwdriver, fiber tape and shoulder bag.SU27 RTF configuration with T8FB. |
| T8S package contents | One each: SU27 aircraft, 8-channel T8S radio, CM210 balance charger for 2S, Gensace 7.4V 600mAh 15C battery, GEMFAN 3052 propeller, USB cable, CM210 charging cable, screwdriver, fiber tape and shoulder bag.SU27 RTF configuration with T8S. |
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