Step 1 — speed to miles per minute. Ground speed ÷ 60 = miles per minute (mpm).
Easy anchor: 60 kt = 1 mpm, so 240 kt = 4 mpm, 480 kt = 8 mpm. (30 kt = ½ mpm.)

Step 2 — the triangle. Distance = mpm × minutes. Cover the one you want:
• Distance = mpm × time   • Time = distance ÷ mpm   • Speed = distance ÷ time

Wind first (Tower). Ground speed = true airspeed ± wind. Tailwind adds, headwind subtracts. Work out the ground speed, then do Steps 1 & 2.

How to play. Each round is 12 questions. Start with CADET mode — just convert ground speed to miles per minute and back. Once those conversions feel automatic, move to PILOT for full triangle problems. When the penny drops and the trick is second nature, try TOWER — true airspeed with a head/tailwind to factor in first, against the clock. Beat the top 10 and you'll be invited to add your callsign to the leaderboard.