Flight Plans

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  You can look the ICAO Designator for your aircraft type using the ICAO search facility here.

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 CAA Safety Sense Leaflet 20, VFR Flight Plans

 CAP 694, The UK Flight Planning Guide

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 RocketRoute : US + Worldwide Flight Planning and Filing [ Sponsored link ]

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 UK NATS AFPEx (Assisted Flight Planning Exchange) 

 OLIVIA flight planning tools from France