CS 25.1583 Operating limitations

• ED Decision 2018/010/R found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

CS 25.1583 Operating limitations ED Decision 2018/010/R (See AMC 25.1583) (a) *Airspeed limitations.* The following airspeed limitations and any other airspeed limitations necessary for safe operation must be furnished. (1) The maximum operating limit speed VMO/MMO and a statement that this speed limit may not be deliberately exceeded in any regime of flight (climb, cruise, or descent) unless a higher speed is authorised for flight test or pilot training. (2) If an airspeed limitation is based upon compressibility effects, a statement to this effect and information as to any symptoms, the probable behaviour of the aeroplane, and the recommended recovery procedures. (3) The manoeuvring speed established under [CS 25.1507](#_DxCrossRefBm1709821769) and statements, as applicable to the particular design, explaining that: (i) full application of pitch, roll, or yaw controls should be confined to speeds below the manoeuvring speed; and (ii) rapid and large alternating control inputs, especially in combination with large changes in pitch, roll, or yaw, and full control inputs in more than one axis at the same time, should be avoided as they may result in structural failures at any speed, including below the manoeuvring speed. (4) The flap extended speeds VFE and the pertinent wing-flap positions and engine powers. (5) The landing gear operating speed or speeds, and a statement explaining the speeds as defined in [CS 25.1515(a)](#_DxCrossRefBm1709821772). (6) The landing gear extended speed VLE, if greater than VLO, and a statement that this is the maximum speed at which the aeroplane can be safely flown with the landing gear extended. (b) *Powerplant limitations*. The following information must be furnished: (1) Limitations required by [CS 25.1521](#_DxCrossRefBm1709820849). (2) Explanation of the limitations, when appropriate. (3) Information necessary for marking the instruments required by [CS 25.1549](#_DxCrossRefBm1709821802) to [25.1553](#_DxCrossRefBm1709821806). (c) *Weight and loading distribution.* The weight and centre of gravity limitations established under [CS 25.1519](#_DxCrossRefBm1709821775) must be furnished in the aeroplane Flight Manual. All of the following information, including the weight distribution limitations established under [CS 25.1519](#_DxCrossRefBm1709821775), must be presented either in the aeroplane Flight Manual or in a separate weight and balance control and loading document that is incorporated by reference in the aeroplane Flight Manual; (1) The condition of the aeroplane and the items included in the empty weight as defined in accordance with [CS 25.29](#_DxCrossRefBm1709820720). (2) Loading instructions necessary to ensure loading of the aeroplane within the weight and centre of gravity limits, and to maintain the loading within these limits in flight. (3) If certification for more than one centre of gravity range is requested, the appropriate limitations, with regard to weight and loading procedures, for each separate centre of gravity range. (d) *Flight crew.* The number and functions of the minimum flight crew determined under [CS 25.1523](#_DxCrossRefBm1709821183) must be furnished. (e) *Kinds of operation.* The kinds of operation approved under [CS 25.1525](#_DxCrossRefBm1709821781) must be furnished. (f) *Ambient air temperatures and operating altitudes.* The extremes of the ambient air temperatures and operating altitudes established under [CS 25.1527](#_DxCrossRefBm1709820937) must be furnished. (g) Reserved. (h) *Additional operating limitations.* The operating limitations established under [CS 25.1533](#_DxCrossRefBm1709820734) must be furnished. (i) *Manoeuvring flight load factors.* The positive manoeuvring limit load factors for which the structure is proven, described in terms of accelerations, must be furnished. (See [AMC 25.1583(i)](#_DxCrossRefBm1709821822)) (j) reserved (k) A limitation on the maximum depth of runway contaminants for take-off operation must be furnished. (See [AMC 25.1583(k)](#_DxCrossRefBm1709821821).) [Amdt No: 25/1] [Amdt No: 25/18] [Amdt No: 25/22]