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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 E - Powerplant |
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Fuel System |
§ 27.951 - General.
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§ 27.951 General.
(a) Each fuel system must be constructed and arranged to ensure a flow of fuel at a rate and pressure established for proper engine functioning under any likely operating condition, including the maneuvers for which certification is requested.
(b) Each fuel system must be arranged so that -
(1) No fuel pump can draw fuel from more than one tank at a time; or
(2) There are means to prevent introducing air into the system.
(c) Each fuel system for a turbine engine must be capable of sustained operation throughout its flow and pressure range with fuel initially saturated with water at 80 °F. and having 0.75cc of free water per gallon added and cooled to the most critical condition for icing likely to be encountered in operation.
[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-9, 39 FR 35461, Oct. 1, 1974]