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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 14 - Aeronautics and Space |
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Chapter I - Federal Aviation Administration, Department of Transportation |
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SubChapter C - Aircraft |
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Part 27 - Airworthiness Standards: Normal Category Rotorcraft |
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Subpart C - Strength Requirements |
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Flight Loads |
§ 27.361 - Engine torque.
Latest version.
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§ 27.361 Engine torque.
(a) For turbine engines, the limit torque may not be less than the highest of -
(1) The mean torque for maximum continuous power multiplied by 1.25;
(2) The torque required by § 27.923;
(3) The torque required by § 27.927; or
(4) The torque imposed by sudden engine stoppage due to malfunction or structural failure (such as compressor jamming).
(b) For reciprocating engines, the limit torque may not be less than the mean torque for maximum continuous power multiplied by -
(1) 1.33, for engines with five or more cylinders; and
(2) Two, three, and four, for engines with four, three, and two cylinders, respectively.
[Amdt. 27-23, 53 FR 34210, Sept. 2, 1988]