Kotuku Engine Data Unit (kEDU) - Next Generation

Introducing the Next-Generation kEDU: Ruggedized, Enhanced, and Ready for Your Engine Compartment

The Kotuku Engine Data Unit (kEDU) is a cornerstone CanFly® component, now significantly upgraded to offer unparalleled reliability and functionality for experimental aircraft. This new version supersedes its predecessor, engineered for the most demanding environments.

Housed in a robust Cinch ModICE® IP67-rated enclosure with a 48-pin connector, the kEDU is designed for direct mounting in the engine compartment, capable of operating at a maximum temperature of 125°C (257°F). This is the first unit of its kind to be AQ200 Grade 1 tested, ensuring extreme durability and performance. Its versatile design allows for the connector and enclosure to be mounted externally, ideal for aircraft without a dedicated engine cowling.

The kEDU continues to monitor most essential engine parameters for 4 or 6 cylinder engines, now with an added thermocouple input for Inlet Air Temperature (IAT).

Core Engine Monitoring Capabilities

The kEDU provides comprehensive monitoring for critical engine parameters:

  • 4/6 EGT channels for K type EGT probes (probes must be ordered separately).

  • 4/6 CHT channels for K type thermo well CHT probes (probes must be ordered separately).

  • NEW! Thermocouple input for Inlet Air Temperature (IAT).

  • Oil Pressure sensor input (sensor must be ordered separately).

  • Fuel Pressure sensor input (sensor must be ordered separately).

  • Fuel Flow sensor input (sensor must be ordered separately).

  • Bus voltage monitoring.

  • Bus current monitoring, requiring an external current shunt (shunt must be ordered separately).

  • Outside air temperature sensor input (sensor must be ordered separately).

  • Left/Right fuel quantity, compatible with standard resistive sensors (sensors must be ordered separately).

  • Left/Right tachometer inputs. When both are connected, the kEDU automatically generates timing divergence alarms.

  • Manifold pressure sensor input (sensor must be ordered separately).

  • ![Image: kEDU unit showcasing its IP67 Cinch ModICE enclosure and 48-pin connector. A close-up view highlighting the robust construction.]*

  • ![Image: kEDU mounted in a typical engine compartment or on a firewall, demonstrating its installation suitability and compact size.]*

kMAG Integration

When seamlessly integrated as part of the CanFly® Lycoming Engine Management solution, the kEDU gains advanced capabilities:

  • Averaged Fuel Pressure: The Fuel Pressure sensor data from each connected kMAG is averaged and automatically replaces the kEDU's internal sensor data.

  • Averaged Inlet Air Temperature: Inlet Air Temperature data from each kMAG is averaged and published, providing a more comprehensive view.

  • Averaged Manifold Pressure: Manifold Pressure data from each kMAG is averaged and published, superseding the kEDU's MAP sensor data.

  • ![Image: Diagram illustrating kEDU's enhanced functionality when integrated with kMAG units, showing data flow.]*

Comprehensive Alarms

The kEDU is equipped to generate a wide array of critical alarms, designed to be clearly displayed on any CanFly® display, ensuring pilot awareness:

  • Low Oil Pressure
  • Low Fuel Pressure
  • High Oil Temperature
  • High Cylinder Head Temperature (1-6)
  • High Exhaust Gas Temperature (1-6)
  • Timing Divergence
  • Low Fuel Quantity
  • High Fuel Pressure
  • CHT Cold Shock
  • High RPM
  • Bus Voltage High
  • Bus Voltage Low
  • High Current
  • kMAG RPM Divergence (requires 2 kMAGs)
  • kMAG MAP Divergence (requires 2 kMAGs)
  • kMAG IAT Divergence (requires 2 kMAGs)
  • kMAG Fuel Pressure Divergence (requires 2 kMAGs)
  • kMAG Temperature High
  • Low Fuel Flow

Beyond these predefined alerts, the CanFly® Commander application allows users to define custom alarms on any published CanFly® data point, offering unparalleled customization for specific operational needs.

  • ![Image: Screenshot of a CanFly® display showing example alarm notifications or a graphic of the alarm list.]*

Integrated Data Logger

The kEDU features substantial internal storage for comprehensive data logging. The CanFly® Commander application provides full configuration capabilities, allowing users to select and log any CanFly® data element.

The default data logger configuration captures essential flight and engine parameters at 6-second intervals:

  • EGT (either 4 or 6 channels, depending on engine configuration).
  • CHT (either 4 or 6 channels, depending on engine configuration).
  • RPM
  • Oil Pressure
  • Oil Temperature
  • Fuel Flow
  • Altitude (Requires a kHUB, kAHRS, or external barometric sensor for data input).
  • Airspeed (Requires a kHUB or kAHRS for data input).

The kEDU can store at least 5 hours of detailed flight data. Once the storage is full, the oldest entries are automatically overwritten, ensuring continuous logging of recent flight information.

  • ![Image: Graphic depicting data logging process, or a screenshot of the CanFly® Commander showing data logging configuration.]*