Excuse me, could anyone help me by telling me the factors that made an aircraft agile.
Also, can anyone tell me the factors of speed in a fighter aircraft?
Flaps will increase lift coefficient, so decrease instantaneous turn radius. Power:weight is critical, as greater power:weight means the aircraft can better recover energy, climb faster, and maintain greater turn rates. Streamlining means more surplus power at any airspeed.
The same as they were in 1917 and are in 2018: power:weight, wing loading, surplus power, control authority, roll inertia, control harmony, and predictable behavior.