← Glossary|Tiếng Việt
Performance

V1

Definition

Takeoff decision speed. Below V1, the takeoff can be safely rejected. At or above V1, the takeoff must continue because insufficient runway remains to stop. Critical for multi-engine operations.

Related Terms

Test your knowledge

Think you understand V1? Challenge yourself with practice questions covering performance and all other ATPL subjects.

Start a Practice Quiz

Or browse all questions by subject