TRANSMITTER TACHYMETRIQUE (P/N 8-461-bb) - New Surplus

The 8-461-bb is a tachometric transmitter that converts engine or rotor speed into an electrical RPM signal for aircraft indicators and engine control systems. This unit pairs with AC tachometer generators qualified to MIL-PRF-26611 and AND20005 mounting standards. Installation follows aircraft maintenance manual procedures and wiring diagrams specific to your airframe.

Verify signal compatibility with your indicator, adapter, or control unit before service to ensure proper RPM readout and system integration.

What is the TRANSMITTER TACHYMETRIQUE (P/N 8-461-bb)?

The 8-461-bb is a tachometric transmitter that converts engine or rotor speed into an electrical RPM signal for aircraft indicators and engine control systems. This unit pairs with AC tachometer generators qualified to MIL-PRF-26611 and AND20005 mounting standards.

Is the 8-461-bb calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The TRANSMITTER TACHYMETRIQUE is available in: New Surplus. Contact us to confirm calibration status for your selected condition.

Can the 8-461-bb be used as a direct replacement in my aircraft?

The TRANSMITTER TACHYMETRIQUE is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.

Do you offer instrument exchange programs for the 8-461-bb?

Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the 8-461-bb.