Threshold elevation Search our video modules — Select a Category — Instruments & Controls Controls Instruments Piloting In-flight Ground Circuit Air work Air Law Navigation Charts Airfield plates Plotting a route Radio Practical Services & Procedures Meteorology Emergency Procedures General Aviation Signals Documentation 2 videos found 4:34 Airfield plate – Bournemouth Navigation,Airfield plates 3:27 Airfield plate – Haverfordwest Navigation,Airfield plates