ELECTRONIC GOVERNOR FOR IN-FLIGHT VARIABLE-PITCH PROPELLERS
AP226 automatically adjusts the propeller pitch to maintain the selected RPM during takeoff, climb, and cruise, while keeping manual control available at all times.
Designed and manufactured in Italy by TECH68
Retrofit for compatible installations
4 operating modes
Custom RPM configuration
Direct technical
support
Set the RPM — AP226 adjusts the propeller pitch.
When power, speed, or flight conditions change, the controller commands the propeller to maintain constant RPM.
01
Stable RPM
Automatic pitch correction based on the selected RPM and the propeller response.
02
Reduced workload
Dedicated settings for takeoff, climb, and cruise, without continuous manual adjustments.
03
Manual control always available
The pilot can choose to control the propeller pitch manually using the dedicated control.
Four modes, one objective
Simple propeller pitch management throughout the different phases of flight.
AUTO TO/LDG
Configured RPM for takeoff and landing, with automatic control.
AUTO CLIMB
Maintains the configured climb RPM.
AUTO CRUISE
The pilot selects the cruise RPM and AP226 automatically adjusts the propeller pitch.
MANUAL
Direct actuator control for manual propeller pitch adjustment.
Configurable for different engines and propellers
AP226 allows the main parameters to be configured for the installed propeller.
1 Maximum RPM — RPM-MAX
Configurable according to the available RPM signal source.
2 Adjustable RPM deadband — RPM-DB
Adjusts to the propeller response time to prevent continuous corrections.
3 RPM adjustment step — RPM-STP
The adjustment increment can be configured according to operational requirements.
4 Pulses per engine revolution — P.REV
Sets the number of pulses per engine revolution.
5 Propeller actuator operating-time reset
Resets the propeller actuator operating time.
6 Save configured parameters
Is it compatible with your aircraft?
AP226 is intended for aircraft equipped with an electrically controlled variable-pitch propeller. The configuration is defined according to the actual installation.
Engine
Status
RPM signal
Rotax 912
Available
Tachometer pickup
Rotax 914
Available
Tachometer pickup
Jabiru / Continental
Installation-specific verification required
To be verified
Lycoming O-320 / O-360
Dedicated interface
Magneto P-lead, with electrical isolation
From verification to configuration
A straightforward process reduces uncertainty and allows the installation to be assessed quickly.
1
Send the details
Aircraft, engine, propeller, actuator, and RPM signal type.
2
Technical assessment
TECH68 evaluates electrical compatibility, actuator control, and the required configuration.
3
Configured unit supplied
The unit is prepared with the parameters and instructions appropriate for the installation.
Check AP226 compatibility free of charge
Send the main details of your installation. TECH68 will advise whether AP226 is suitable and which connections or interfaces are required.