Engine & Gearbox Control Instruments

Mi-8 / Mi-17 engine and gearbox control instruments comprise indicators, transmitters, sensors and control-related devices used to monitor operating parameters of the propulsion installation. The catalogue is organised around exact designations rather than generic names. This helps maintenance and purchasing teams move from a recorded instrument number to the corresponding product card without assuming that similar gauges or transmitters share the same range.

Indicators, transmitters and sensing equipment

The section contains DChV-2500A, ERD-3VM Series 2, IR-117M and UR-117M, MV-03 variants, BE-series equipment, TST designations and other positions. These examples cover separate measurement or indication families. Their appearance together describes the scope of the category only; it does not establish a common signal, scale, engine version or installation point.

Confirm the measured parameter and execution

A valid match can depend on measurement range, transmitter pairing, electrical interface, scale, series and the installed engine or gearbox configuration. Keep all letters, numerals and version data when transcribing a label. The aircraft equipment list, engine documentation and connection data should resolve any uncertainty between closely named products.

• record the instrument Part Number and series exactly;
• state the measured parameter or displayed function;
• identify the engine, gearbox and helicopter modification;
• note any paired transmitter or indicator from the records;
• send quantity, document needs and clear marking photographs.

Send the instrument data for checking

Select the matching card to request confirmation of identity, condition, completeness, documents, price and expected timing. Additional onboard equipment is grouped in the Mi-8 / Mi-17 helicopter systems catalogue. For instruments used beyond this family, continue through the general aviation parts catalogue.