Quite OK, thermostat, I've managed to learn a thing or two after 70 years around planes and engines, and if I'm able to pass some of it along, I'm flattered.
But my original point was that when making a 180, speed is not always your friend. It increases the time and distance required to complete the maneuver; the extreme case being an SR-71 requiring three states and 15 minutes to reverse direction at Mach 3. It's Newtonian mechanics, pure and simple.
"You've never been lost until you've been lost at Mach 3." -- Paul Crickmore