V1, Vr and V2 explained
Performance
01 · Direct Answer
V1 supports the takeoff continue-or-stop decision, Vr is the scheduled rotation speed and V2 is the takeoff safety speed used to deliver required climb performance.
02 · Operational Explanation
The speeds are calculated as a coordinated set for the actual runway, mass, configuration and environmental conditions. They represent different points in the certified takeoff sequence and are not interchangeable.
03 · Why It Matters
Late decisions or incorrect rotation technique can invalidate the runway and climb assumptions embedded in the performance calculation.
04 · Key Considerations
05 · Visual Insight
Simplified concept view · Not for operational calculation
Certification Specifications for Large Aeroplanes
CS-25.107 — Take-off Speeds · Demo reference
Airplane Flying Handbook
Multiengine Takeoff · Demo reference
Future operator answers will add locked, private references from company manuals, SOPs, fleet documents, training manuals, compliance records and safety reports.
07 · Confidence Level
Strongly supported by the available sources. The definitions are explicitly established in certification and operational training material.
08 · Limitations / Safety Note
This static demonstration supports learning and pre-flight study only. Confirm operational decisions against current regulations, approved aircraft data, charts, NOTAMs and applicable operator procedures.