Pilot indicator for predicting changes in the speed of...

Details Pilot indicator for predicting changes in the speed of... Pilot indicator for predicting changes in the speed of...

2006-12-12

2006-12-12

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

Reexamination Certificate

active

07149646

ABSTRACT:
The present invention relates to a pilot indicator for a rotorcraft provided with a main rotor and at least one gas turbine engine. The indicator has first and second sensors delivering information relating respectively to a first speed of rotation Nr corresponding to said main rotor, and a second speed of rotation NTL corresponding to the free turbine of said engine. The indicator is also provided with display means provided with a display screen for displaying the first and second present values respectively for the first and second speeds of rotation Nr and NTL. In addition, said processor means determines an estimated value for the first speed of rotation Nr.

REFERENCES:
patent: 5831429 (1998-11-01), Germanetti
patent: 2004/0176902 (2004-09-01), McBrien et al.

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