What is the acceleration limit for symmetric gear/flaps configuration?

The acceleration limit for a symmetric gear/flaps configuration is correctly identified as 0 to 2.5 Gs. This range indicates that the aircraft can safely operate under positive acceleration forces up to 2.5 times the force of gravity without risking structural integrity or performance issues, as long as the configuration remains symmetric.

This limit is established to maintain the safety of the airframe and ensure that the aircraft functions within its designed operational envelope. Operating within this range allows for normal maneuvers and thrust without exceeding the tolerances that could lead to system failures or degradation of the aircraft's performance capabilities.

The choice of a 2.5 G upper limit, as opposed to higher values present in other options, reflects the need to balance performance and safety, particularly in configurations with deployed gear or flaps, which can affect the aerodynamic characteristics and structural loads acting on the aircraft.