---
title: "CS 23.2105 Performance data — CS-23 · Avioverse"
description: "Unless otherwise prescribed, an aeroplane must meet the performance requirements of this Subpart in:"
url: "https://avioverse.aero/regulations/easa/cs-23/subpart-b/cs-23-2105"
---

# CS 23.2105 Performance data

Normal-Category Aeroplanes (CS-23) · CS-23 · EAR revision 13 May 2026

IR Implementing rule

## CS 23.2105 Performance data

(a) Unless otherwise prescribed, an aeroplane must meet the performance requirements of this Subpart in:

(1) still air and standard atmospheric conditions at sea level for all aeroplanes; and

(2) ambient atmospheric conditions within the operating envelope for:

(i) Level-1 high-speed and Level-2 high-speed aeroplanes; and

(ii) Level-3 and Level-4 aeroplanes.

(b) Unless otherwise prescribed, the applicant must develop the performance data required by this Subpart for the following conditions:

(1) airport altitudes from sea level to 3 048 m (10 000 ft); and

(2) temperatures above and below standard day temperature that are within the range of operating limitations if those temperatures could have a negative effect on performance.

(c) The procedures used for determining take-off and landing distances must be executable consistently by pilots of average skill in atmospheric conditions expected to be encountered in service.

(d) Performance data determined in accordance with CS 23.2105(b) must account for losses due to atmospheric conditions, cooling needs, and other demands on power sources.

IR · CS 23.2105 — CS-23 · ED Decision 2017/013/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC1 23.2105 Performance data

ASTM F44 F3264 Standard Specification for Normal Category Aeroplanes Certification

5.2 Performance Data

F3179/F3179M-22e1 Standard Specification for Performance of Aircraft

\[AMC & GM to CS-23: Issue 4]

\[AMC & GM to CS-23: Issue 5]

AMC · AMC1 23.2105 — CS-23 · ED Decision 2026/003/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC2 23.2105 Performance data

CS-23 Amdt 4

23.45 Performance - General

AMC · AMC2 23.2105 — CS-23 · ED Decision 2017/025/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC3 23.2105 Performance data

CS VLA Amdt 1

VLA.45 Performance - General

AMC · AMC3 23.2105 — CS-23 · ED Decision 2017/025/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

[All rules in SUBPART B — FLIGHT](https://avioverse.aero/regulations/easa/cs-23/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 13 May 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.