---
title: "AMC No. 1 to CS 25.101(c) Extrapolation of Performance with Weight — CS-25 · Avioverse"
description: "The variation of take-off, climb and landing performance with weight may be extrapolated without conservatism to a weight greater, by up to 10%, than the…"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-b/amc-no-1-to-cs-25-101-c-extrapolation-of-performance-with-weight"
---

# AMC No. 1 to CS 25.101(c) Extrapolation of Performance with Weight

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

AMC Acceptable means of compliance

## AMC No. 1 to CS 25.101(c) Extrapolation of Performance with Weight

The variation of take-off, climb and landing performance with weight may be extrapolated without conservatism to a weight greater, by up to 10%, than the maximum weight tested and to a weight lower, by up to 10%, than the lowest weight tested. These ranges may not be applicable if there are significant discontinuities, or unusual variations, in the scheduling of the relevant speeds with weight, in the weight ranges covered by extrapolation.

AMC — CS-25 · ED Decision 2003/2/RM · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART B – FLIGHT](https://avioverse.aero/regulations/easa/cs-25/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, 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.