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ARP435 - Overspeed Warning Instrument (Turbine Powered Subsonic Aircraft)

Document Number: ARP435
Revision Number:
Overspeed Warning Instrument (Turbine Powered Subsonic Aircraft)
This Aerospace Recommended Practice establishes performance standards for overspeed warning instruments primarily for use with turbine powered subsonic transport aircraft, the operation of which may subject the instruments to the environmental conditions specified in paragraph 3.4. This ARP covers an electro-mechanical pneumatic device which is calibrated to provide control contacts that can be made to operate a warning device whenever the indicated airspeed (IAS) reaches a maximum value as defined by the operating limit speed curve for the specific model aircraft.
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