
You're flying an Su-25T Frogfoot on a recon mission, so all measurements are in metric. You start at Waypoint #1, travel East to gather intel at Waypoint #2, and then turn NW toward Waypoint #3
At what distance from Waypoint #2 do you begin the 45 second bank to the left?
The circumference of the turning circle is however much distance is covered in two minutes. A velocity of 600 km/h is 10 km/min, so in two minutes the Frogfoot covers 20 km. Circumference is Pi diameters around, so radius of turn is 20 km / (2 Pi) = 3.183 km

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