What is the maximum ambient temperature for takeoff or landing for the CRJ 900?

The maximum ambient temperature for takeoff or landing for the CRJ 900 is defined as ISA +35C. This limitation is crucial for ensuring the aircraft operates within safe parameters during critical phases of flight. Higher ambient temperatures can affect aircraft performance, specifically the engine's ability to generate thrust and the wings' lift characteristics.

When the ambient temperature exceeds this limit, the aircraft may face reduced engine performance and longer takeoff distances, which could compromise safety. Operating the aircraft at temperatures beyond this threshold can lead to scenarios where the aircraft cannot attain the required performance for a safe takeoff or landing, especially in terms of climb rate and stopping distance on wet or contaminated runways.

Therefore, knowing that the maximum ambient temperature for takeoff or landing is ISA +35C helps flight crews ensure that they are operating the aircraft within the manufacturer’s safety guidelines, which is essential for maintaining the safety and reliability of each flight.