RC Retractable Landing Gear Controller with Precise Gear Control and Automatic Door Sequencing for RC Plane

RC Retractable Landing Gear Controller with Precise Gear Control and Automatic Door Sequencing for RC Plane Description

Compact, reliable retractable landing gear controller and actuator system for fixedwing RC aircraft. The V1 controller integrates with the simple door closing mechanism to deliver precise, repeatable gear operation and robust failsafe behavior. Key benefits Simplifies installation and operation of retractable landing gear on scale and sport models. positional accuracy for smooth door and gear movement. Builtin failsafe logic prevents partial system activation when a retraction connection is missing. Stable, predictable performance reduces risk of gearrelated incidents during flight operations. Main features V1 controller storage system seamlessly integrates with the simple door closing system. system accuracy and easy to operate controls. Automatic start of the door system after three retraction devices are connected to the controller. The door system will not start if any one of the three retraction connections is not present. Automatic detection of abandoned or disconnected interface modes; when detected, other retractions will not operate. Specifications Condition: 100 percent Optional configurations: Retractable System Controller only, or Retractable Landing Gear plus Controller Controller Working voltage: 5 V to 6 V Size: 53 x 32 x 10 mm / 2.1 x 1.3 x 0.4 in Version: V1 Suitable for 90 mm to 120 mm EDF jets or other aircraft up to 10 to 12 kg Retractable landing gear Working voltage: 5 V to 8.4 V Rotation angle: 90 degrees Retraction speed: 5.2 seconds at 5 V, 4.3 seconds at 6 V Strut hole diameter: 12 mm / 0.5 in Torque: 12 kg cm Retracted size: 27 x 80 x 22 mm / 1.1 x 3.1 x 0.9 in Retractable mounting plate size: 36 x 48 mm / 1.4 x 1.9 in Package options Controller only: 1 x ER120 Controller Full kit: 3 x ER120 Retractable Landing Gear, 1 x ER120 Controller, 1 x Plug Cable, 1 x Wrench, 1 x Connection Rod, 5 x Screws, 1 x Nut Final contents depend on the selected option Compatibility and applications Designed for a wide range of fixedwing RC aircraft; ideal for EDF jet models 90 mm to 120 mm and airframes up to 10 to 12 kg Typical use cases: Installing retractable gear and door systems on a 90 mm EDF sport jet for cleaner lines and improved ground handling Upgrading scale models that require accurate, repeatable gear and door sequencing for shows and club flying Fieldready replacement or of landing gear on mediumweight electric aircraft where compact, torque actuators are needed Operation and reliability Simple wiring and automatic sequencing reduce setup time and simplify troubleshooting. The controller enforces a threedevice check before activating doors to prevent incomplete system starts. Detects disconnected or abandoned interface modes and inhibits other retractions to avoid unintended operation. This V1 retractable system provides a compact controller, precise actuators, and clear safety logic for dependable landing gear and door control on compatible RC aircraft.