What is the significance of the air temperature limit of ISA +37°C for the King Air 350?

• A. It is the maximum operating air temperature at sea level.
• B. It indicates the deicing temperature limit.
• C. It is the maximum cargo weight limit.
• D. It is the minimum operating air temperature.

Answer: (A)

The air temperature limit of ISA +37°C is significant as it establishes the maximum operating air temperature for the King Air 350 at sea level. Operating in temperatures above this limit can adversely affect aircraft performance, including engine efficiency and overall safety. This temperature limit is critical for ensuring that the aircraft operates within its designed parameters, allowing for optimal engine operation and aerodynamic performance. Exceeding this limit can lead to issues such as reduced climb rates, increased fuel consumption, and potential impact on systems that rely on ambient temperature for proper functioning. The limit is grounded in the aircraft's certification data, which defines safe operational parameters to ensure pilots and crew maintain safe conditions during their flights.