Importance of CG in Aircraft Stability An aircraft's Center of Gravity (CG) is crucial for stability. A forward CG causes the nose to pitch down, requiring more elevator input and increased lift to maintain level flight. This leads to higher stall speeds, longer takeoffs, and increased control effort. Pilots must keep the CG within limits for safe and efficient flight. The forward center of gravity causes the aircraft to develop a pitching down. The tendency balance is regained with the help of