CS 27.1587 Performance information

• ED Decision 2018/007/R found in: CS-27 Amdt 9 - Small Rotorcraft (Dec 2021)

CS 27.1587 Performance information ED Decision 2018/007/R (a) The rotorcraft flight manual (RFM) must contain the following information, determined in accordance with [CS 27.49](#_DxCrossRefBm472493218) through [CS 27.79](#_DxCrossRefBm472493229) and [CS 27.143(c) and (d)](#_DxCrossRefBm472493228): (1) Enough information to determine the limiting height-speed envelope. (2) Information relative to: (i) The steady rates of climb and descent, in-ground effect and out-of-ground effect hovering ceilings, together with the corresponding airspeeds and other pertinent information including the calculated effects of altitude and temperatures; (ii) The maximum weight for each altitude and temperature condition at which the rotorcraft can safely hover in-ground effect and out-of-ground effect in winds of not less than 31 km/h (17 knots) from all azimuths. This data must be clearly referenced to the appropriate hover charts. In addition, if there are other combinations of weight, altitude, and temperature for which performance information is provided and at which the rotorcraft cannot land and take-off safely with the maximum wind value, those portions of the operating envelope and the appropriate safe wind conditions must be stated in the Rotorcraft Flight Manual; (iii) For reciprocating engine-powered rotorcraft, the maximum atmospheric temperature at which compliance with the cooling provisions of [CS 27.1041](#_DxCrossRefBm472493468) to [27.1045](#_DxCrossRefBm472493470) is shown; and (iv) Glide distance as a function of altitude when autorotating at the speeds and conditions for minimum rate of descent and best glide as determined in [CS 27.71](#_DxCrossRefBm472493240). (b) The RFM must contain: (1) In its performance information section any pertinent information concerning the take-off weights and altitudes used in compliance with [CS 27.51](#_DxCrossRefBm472493237); (2) The horizontal take-off distance determined in accordance with [CS 27.65(a)(2)(i)](#_DxCrossRefBm472493238), and (3) The substantiated sea conditions and any associated information relating to the certification obtained with ditching or emergency flotation provisions. [Amdt No: 27/1] [Amdt No: 27/5] CS 27.1587 Performance information ED Decision 2018/007/R (a) The rotorcraft flight manual (RFM) must contain the following information, determined in accordance with [CS 27.49](#_DxCrossRefBm8893776) through [CS 27.79](#_DxCrossRefBm8893787) and [CS 27.143(c) and (d)](#_DxCrossRefBm8893786): (1) Enough information to determine the limiting height-speed envelope. (2) Information relative to: (i) The steady rates of climb and descent, in-ground effect and out-of-ground effect hovering ceilings, together with the corresponding airspeeds and other pertinent information including the calculated effects of altitude and temperatures; (ii) The maximum weight for each altitude and temperature condition at which the rotorcraft can safely hover in-ground effect and out-of-ground effect in winds of not less than 31 km/h (17 knots) from all azimuths. This data must be clearly referenced to the appropriate hover charts. In addition, if there are other combinations of weight, altitude, and temperature for which performance information is provided and at which the rotorcraft cannot land and take-off safely with the maximum wind value, those portions of the operating envelope and the appropriate safe wind conditions must be stated in the Rotorcraft Flight Manual; (iii) For reciprocating engine-powered rotorcraft, the maximum atmospheric temperature at which compliance with the cooling provisions of [CS 27.1041](#_DxCrossRefBm8894048) to [27.1045](#_DxCrossRefBm8894050) is shown; and (iv) Glide distance as a function of altitude when autorotating at the speeds and conditions for minimum rate of descent and best glide as determined in [CS 27.71](#_DxCrossRefBm8893798). (b) The RFM must contain: (1) In its performance information section any pertinent information concerning the take-off weights and altitudes used in compliance with [CS 27.51](#_DxCrossRefBm8893795); (2) The horizontal take-off distance determined in accordance with [CS 27.65(a)(2)(i)](#_DxCrossRefBm8893796), and (3) The substantiated sea conditions and any associated information relating to the certification obtained with ditching or emergency flotation provisions. [Amdt No: 27/1] [Amdt No: 27/5]