The trick: A standard rate turn (3° per second, full circle in two minutes) needs a bank angle that depends on your speed. The rule of thumb is bank ≈ (TAS ÷ 10) + 7.

• Step 1: TAS ÷ 10
• Step 2: + 7 → bank angle in degrees

Worked example: TAS 180 kt → 180 ÷ 10 = 18 · 18 + 7 = 25° bank.

Watch the cap: if the formula gives more than 30°, you're past the structural limit for a standard rate turn — real-world you'd reduce the rate rather than crank in more bank.

How to play. Each round is 12 questions. Start in CADET mode — just divide the TAS by ten. Once that's automatic, move to PILOT for the full bank-angle calculation at light-aircraft speeds. When the trick is second nature, try TOWER — jet TAS values, against the clock with a bonus for the high-speed stuff. Beat the top 10 and you'll be invited to add your callsign to the leaderboard.