TowerTalkCAP 413
CAP 413: get the manual, then learn to speak it
CAP 413 is the UK CAA's Radiotelephony Manual — the standard words and phrases for the aviation radio. The current edition is free from the CAA. TowerTalk teaches its phraseology in plain English, then lets you practise it live with an AI controller that grades every call.
Phraseology, in plain English
Callsign use, mandatory readbacks, position reports (CPTANE), services and frequency changes — explained clearly with our own worked examples.
Practise it live
Don't just read it — say it. Make real calls to the AI controller and hear how a station responds, over push-to-talk.
Emergencies covered
Rehearse PAN-PAN and MAYDAY calls in a safe place, so the format is automatic if you ever need it for real.
Hands-free revision
Listen to the spoken revision guide in the car or away from a screen, with lock-screen controls.
How it works
- 1
Learn
Read the phraseology, built up from the basics.
- 2
Listen
Hear worked exchanges with notes on every call.
- 3
Practise
Make the calls live to the AI controller.
- 4
Check
Get graded feedback against CAP 413 practice.
Frequently asked
Where do I download CAP 413?
Free from the CAA at caa.co.uk/cap413 — the current edition is Edition 24. Always take the current edition and amendment from the CAA rather than a saved copy, because it is amended periodically.
What is CAP 413?
CAP 413 is the UK Civil Aviation Authority's Radiotelephony Manual — the reference for standard words and phrases used on the aviation radio. TowerTalk teaches those conventions in our own words and examples; always defer to the current official document.
Is this suitable for student pilots?
Yes. TowerTalk is built for student pilots and anyone working toward an RT licence, as well as qualified pilots who want to stay sharp.
Does it cover UK and US phraseology?
You can switch the standard, and the AI controller, grading and content follow UK CAP 413 or US/FAA phraseology accordingly.
Is it free to try?
Yes — you can start learning and make practice calls for free, with no card required. Upgrade later for unlimited graded practice.
Start with the alphabet, finish flying a full flight
Free to start. Learn the phraseology, then practise it live with the AI controller.
Start learning freeRelated: What is CAP 413? · CAP 413 revision · FRTOL practice · CAP 413 refresher for returning pilots