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AMC 25.361 Engine and auxiliary power unit torque
Available versions for ERULES-1963177438-9618
ED Decision 2009/017/R
found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)
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CS-25 Amdt 27 - La... (Jan 2023)
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AMC 25.361 Engine and auxiliary power unit torque ED Decision 2009/017/R [CS 25.361(a)(1)](#_DxCrossRefBm1709820967) is applicable to all engine installations, including turbo-fans, turbo-jets and turbo-propellers, except [CS 25.361(a)(1)(iii)](#_DxCrossRefBm1709820967) which applies only to turbo-propeller installations. [CS 25.361(a)(2)(i)](#_DxCrossRefBm1709820967) - “Mean engine torque” refers to the value of the torque, for the specified condition, with any dynamic oscillations removed. [CS 25.361(a)(3)(i)](#_DxCrossRefBm1709820967) - Examples are; high power compressor surges, blade tip rub during manoeuvres, small and medium bird encounters, or combinations of these events. [CS 25.361(a)(3)(ii) and (b)(2)](#_DxCrossRefBm1709820967) - As an example, the term “maximum acceleration” is taken to be that torque seen by the engine mounts under a runaway of the fuel metering unit up to its maximum flow stop. [Amdt 25/8]