CS-VLA 1521 Powerplant limitations

• ED Decision 2003/18/RM found in: CS-VLA Amdt 1 - Very Light Aeroplanes (Mar 2009)

CS-VLA 1521 Powerplant limitations ED Decision 2003/18/RM (a) *General*. The powerplant limitations prescribed in this paragraph must be established so that they do not exceed the corresponding limits for which the engine or propeller is type certificated. (b) *Take-off operation*. The Powerplant take-off operation must be limited by - (1) The maximum rotational speed power; (2) The maximum allowable manifold pressure for aeroplanes equipped with a variable pitch propeller or supercharger; (3) The time limit for the use of the power or thrust corresponding to the limitations established in sub-paragraphs (b)(1) and (b)(2) of this paragraph; and (4) If the time limit in sub-paragraph (b)(3) of this paragraph exceeds two minutes, the maximum allowable cylinder head (as applicable), liquid coolant, and oil temperatures. (c) *Continuous operation*. The continuous operation must be limited by - (1) The maximum rotational speed; (2) The maximum allowable manifold pressure for aeroplanes equipped with a variable pitch propeller or supercharger; (3) The maximum allowable cylinder head, oil, and liquid coolant temperatures. (d) *Fuel grade*. The minimum fuel grade must be established so that it is not less than that required for the operation of the engine within the limitations in sub-paragraphs (b) and (c) of this paragraph.