JEPPSEN
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ADEQUATE VIS REF
From Introduction to Jeppesen Navigation Charts, Glossary ADEQUATE VIS REF (Adequate Visual Reference) — Runway markings or runway lighting that provides the pilot with adequate visual reference to continuously identify the take-off surface and maintain directional control throughout the take-off run. From Intruments Procedures Handbook (IPH, FAA-H-8083-16B, Chapter1 Departure Procedures, 1-11) ..