Free during beta

Your radio calls,
graded like a CFI.

ATC gives the transmission. You read it back. AI grades every element against FAA AIM standards — missed hold shorts, wrong squawk, non-standard phrases, all of it.

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ATC · Ground Control

“Cessna 4 Sierra Uniform, taxi to runway 28 Left via Bravo, hold short of runway 28 Right, altimeter 2 niner niner 2.”

Your readback

“Taxi to 28 Left via Bravo, 4 Sierra Uniform.”

52
FAIL

Missing hold short instruction — a safety-critical element. In Class D airspace this causes a runway incursion.

Runway 28 Left
Taxiway Bravo
Call sign
Hold short runway 28 Right — MISSING
Altimeter 2 niner niner 2 — not read back

How it works

01

ATC transmits

A realistic clearance or instruction — taxi, takeoff, pattern entry, flight following, IFR clearance.

02

You read it back

Type exactly what you'd say on the radio. No hints, no word bank. Just you and the mic.

03

Claude grades it

Every required element checked against FAA AIM Chapter 4. Missing a hold short? Automatic fail, every time.

What gets graded

The same things your CFI is watching for — and the same things that cause runway incursions when missed.

Hold short instructions (missing = instant fail)
Call sign on every transmission
All numbers read back verbatim
Runway designators with L/R/C suffix
Frequencies digit by digit
Squawk codes digit by digit
Altitude format (five thousand, not fifty hundred)
Non-standard phrases ("copy that", "10-4", "will do")

26 scenarios across every phase of flight

From first radio call to IFR clearance delivery.

6
ground
5
departure
4
pattern
7
enroute
4
ifr

Simple pricing

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  • 5 scenarios/day
  • Ground & departure phases
  • Text readback only
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Ready to stop second-guessing your calls?

Start with the scenario that scares you most. Hold short, runway crossing, first IFR clearance.

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