The UK Radiotelephony Manual (CAP 413) aims to provide pilots and Air Traffic Services personnel with a compendium of clear, concise, standard phraseology and associated guidance for radiotelephony communication in United Kingdom airspace. Edition 19 incorporates: - a chapter of military specific phraseology - changes to UK phraseology agreed through consultation with industry - changes required to align CAP 413 with CAP 493 Manual of Air Traffic Services Part 1