This lesson teaches about Energy Maneuverability theory as it applies to the P‑51D and Fw 190 D‑9 in the Il‑2 Great Battles series, covering their performance capabilities at various altitudes. Topics include turn performance, the impact of a G‑suit on the P‑51, roll rates and roll accelerations, climb rates, unloaded and level‑flight accelerations, the effect of flaps, and overall energy management that dictates tactics for each aircraft.