---
title: "Accelerate-stop distance available (ASDA) — EASA Definition · Avioverse"
description: "Annex I — Definitions for terms used in Annexes II to IX, Regulation (EU) No 965/2012: ‘accelerate-stop distance available (ASDA)’ means the length of…"
url: "https://avioverse.aero/glossary/easa/accelerate-stop-distance-available"
---

# accelerate-stop distance available (ASDA)

EASA defines “accelerate-stop distance available (ASDA)” in 2 regulations, worded for each regulation's scope. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘accelerate-stop distance available (ASDA)’ means the length of the take-off run available plus the length of stopway, if such stopway is declared available by the State of the aerodrome and is capable of bearing the mass of the aeroplane under the prevailing operating conditions;

Annex I — Definitions for terms used in Annexes II to IX · Air Operations · Regulation (EU) No 965/2012 · Easy Access Rules, 27 Mar 2026 revision · [Read the article](https://avioverse.aero/regulations/easa/air-ops/definitions/powers-and-recitals#annex-i-definitions-for-terms-used-in-annexes-ii-to-ix)

> ‘accelerate-stop distance available (ASDA)’ means the length of the take-off run available plus the length of the stopway, if provided;

Definitions for terms used in Annexes II to IV · Aerodromes · Regulation (EU) No 139/2014 · Easy Access Rules, 13 Mar 2026 revision · [Read the article](https://avioverse.aero/regulations/easa/aerodromes/definitions/powers-and-recitals#definitions-for-terms-used-in-annexes-ii-to-iv)

> ‘Accelerate-stop distance available (ASDA)’ means the length of the take-off run available plus the length of the stopway if provided.

CS ADR-DSN.A.002 · Aerodromes · Regulation (EU) No 139/2014 · Easy Access Rules, 13 Mar 2026 revision · [Read CS ADR-DSN.A.002](https://avioverse.aero/regulations/easa/aerodromes/cs-adr-dsn/chapter-a-general#cs-adr-dsn-a-002)

## Also in the aviation glossary

- Accelerate-Stop Distance Available (ASDA) FAA IPH

  The runway plus stopway length declared available and suitable for the acceleration and deceleration of an airplane aborting a takeoff.

## Defined in the same article

- [\[aerodrome\] traffic density](https://avioverse.aero/glossary/easa/aerodrome-traffic-density)
- [acceptable means of compliance (AMC)](https://avioverse.aero/glossary/easa/acceptable-means-of-compliance)
- [acceptance checklist](https://avioverse.aero/glossary/easa/acceptance-checklist)
- [accuracy](https://avioverse.aero/glossary/easa/accuracy)
- [adequate aerodrome](https://avioverse.aero/glossary/easa/adequate-aerodrome)
- [adequate vertiport](https://avioverse.aero/glossary/easa/adequate-vertiport)
- [adult](https://avioverse.aero/glossary/easa/adult)
- [aerodrome](https://avioverse.aero/glossary/easa/aerodrome)