What is the maximum speed to open the direct vision window in the ERJ 170/175?

The maximum speed to open the direct vision window in the ERJ 170/175 is 160 KIAS. This limitation is put in place to prevent the risks associated with aerodynamic forces at higher speeds, which may prevent the window from opening properly or could even cause structural damage. The direct vision window is designed to be operational within a specific speed range for safety and operational effectiveness. Keeping within this limitation is crucial to ensure the safe functioning of the aircraft systems and the safety of the crew and passengers during flight.