Prop Controllers
Prop & Flap Controllers
Prop Controllers
APR1
APR1 is an advanced automatic propeller controller that delivers true single‑lever operation for electric constant‑speed propellers. It continuously manages propeller RPM based on throttle position, MAP, and flight phase, giving smoother climbs, optimized cruise, and reduced pilot workload. The bright 2‑1/4" color display provides clear mode indication and real‑time RPM feedback, while the rugged control unit drives high‑current prop motors with precision and built‑in protection.
• Single‑lever operation: APR1 automatically adjusts prop pitch to maintain target RPM across the power curve
• Three control modes:
• CSPD – constant RPM control
• ADV – automatic pitch advance for climb/cruise
• ADV+ – MAP‑linked optimization (MAP versions only)
• Four versions available: supports a wide range of engines and electric CS props
• High‑visibility display: 1000‑nit sunlight‑readable TFT with auto‑dimming
• High‑current output stage: 20 A continuous, short‑circuit protected
• Flexible integration: 3× CAN bus, 2× RS232, USB, analog/digital inputs
• Compact installation: 57 mm (2‑1/4") mount
• Built for reliability: solid‑state sensing, protected motor drive, vibration‑resistant design
PR1-P
Electronic constant‑speed propeller regulator that holds engine RPM with hydraulic‑level precision. PR1‑P automatically adjusts prop pitch to maintain the selected RPM, using patented hardware/software to achieve ±20 RPM accuracy—even on fast electric props.
Key Points
• Set target RPM via knob or INC/DEC switch
• Maintains RPM by actively adjusting prop pitch
• Works with very fast electric props (2–3 s travel)
• Min/max pitch LED indicators + pre‑takeoff prop test
• Supports external pitch switch, potentiometer, or Flybox lever
• Safety bypass switch for manual control
• Backlit LCD with coated glass (2‑1/4" mount)
• 7 A motor drive, 11–20 V operation
• RPM range: 1000–8000, resolution 10 RPM
Flap Controllers
AIR EFC
AIR‑EFC is an electronic flap controller with integrated airspeed sensing, providing automatic flap protection and precise position control. It prevents flap deployment above safe speeds, offers smooth motor drive control, and displays real‑time flap position on a bright 2‑1/4" color screen.
Key Points
• Integrated airspeed sensor for overspeed flap protection
• Blocks flap extension above user‑defined safe speed
• Smooth, proportional motor control for accurate positioning
• Bright 1000‑nit sunlight‑readable color display (57 mm / 2‑1/4")
• Configurable detents and travel limits
• Manual override for full pilot authority
• Supports position sensor input + motor output
• Lightweight, compact, vibration‑resistant design
EFC57-PLUS
EFC57‑PLUS is an electronic flap controller that drives an electric actuator to preset flap positions at the touch of a control. The pilot selects one of four user‑stored positions and the system automatically moves the flaps to that exact setting, with LEDs indicating current or target position.
Key points:
-
Electronic flap controller + actuator system
-
4 user‑programmable flap positions
-
Automatic drive to selected position
-
LED indication of current/target flap position
-
Safety switch for manual flap operation in case of electronic failure
-
Works with 1–5 kΩ position transducer
-
2‑1/4" round mount, 10–30 V input, 125 g
EFC3P
Three‑position electronic flap controller with integrated airspeed sensing and automatic overspeed protection. Precise actuator control, user‑defined VFE limits, and smart lockout to prevent flap extension at unsafe speeds. Designed for simple installation, dual‑station operation, and dependable performance in light‑sport and experimental aircraft.
Features:
• Three preset.
• Built‑in airspeed sensor for flap‑overspeed protection
• Programmable VFE limits for each position
• Automatic lockout above safe speeds
• Short‑circuit and actuator‑protection logic
• USB port for firmware updates
• Slave‑unit support for dual controls
• Compact, lightweight module for easy mounting