---
title: "V1 — EASA Definition · Avioverse"
description: "Annex I — Definitions for terms used in Annexes II to IX, Regulation (EU) No 965/2012: ‘V1’ means the maximum speed in the take-off at which the pilot…"
url: "https://avioverse.aero/glossary/easa/v1"
---

# V1

EASA defines “V1” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

> ‘V1’ means the maximum speed in the take-off at which the pilot must take the first action to stop the aeroplane within the accelerate-stop distance. V1 also means the minimum speed in the take-off, following a failure of the critical engine at VEF, at which the pilot can continue the take-off and achieve the required height above the take-off surface within the take-off distance;

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)

## Also in the aviation glossary

- V1 FAA PHAK

  See takeoff decision speed.

## Defined in the same article

- [accelerate-stop distance available (ASDA)](https://avioverse.aero/glossary/easa/accelerate-stop-distance-available)
- [acceptable means of compliance (AMC)](https://avioverse.aero/glossary/easa/acceptable-means-of-compliance)
- [acceptance checklist](https://avioverse.aero/glossary/easa/acceptance-checklist)
- [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 operating minima](https://avioverse.aero/glossary/easa/aerodrome-operating-minima)
- [aided night vision imaging system (NVIS) flight](https://avioverse.aero/glossary/easa/aided-night-vision-imaging-system-flight)