Stock Flight Systems introduces EMU for Rotax 912iS

Stock Flight Systems has introduced an Engine Management Unit for BRP’s new Rotax 912iS aero engine.

The four-cylinder, 100-hp engine features a dual redundant electronic Engine Control Unit (ECU). The EMU 912iS of Stock Flight Systems communicates with the redundant CANaerospace data bus interface of the ECU and provides the pilot with all engine indications, according to company officials. The functionality includes continuous monitoring of the network health status, and the indication of all ECU generated warning and status messages. An optional fuel pressure sensor is included in the data display.

The EMU 912iS software automatically records all ECU messages transmitted on the redundant Rotax 912iS CANaerospace networks for the engine lifetime. An integrated, front panel accessible SDHC interface is used for data acquisition storage, system configuration information and software upgrades.

Included with the EMU 912iS is the Engine Monitoring Debriefing System (EMDS) software, which uses the data files recorded on the EMU 912iS SDHC card. Among other features, EMDS allows data visualization and replay in engineering formats and the export of the data into other formats, company officials said.

The 4Hz GPS/Galileo sensor of the EMU 912iS adds time correlated satellite data to the engine data recording, allowing it to generate performance data from the combination of engine data with position, ground speed, height and time. Flight paths together with engine data can be visualized using Google Earth.

The EMU 912iS has been flight tested at altitudes of up to 18,000 feet, and temperatures as low as -18° Celsius.

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