What is the bulk fuel takeoff limit temperature?

The bulk fuel takeoff limit temperature is essential for ensuring safe operation and optimal performance when taking off in aircraft like the CRJ 200. Specifically, this limit indicates the lowest fuel temperature that can be safely used for takeoff without risking fuel-related issues like ice formation or vapor lock in the fuel system.

The correct answer specifies a limit of -40°C. This temperature is established based on the fuel's properties and the aircraft systems designed to manage those fuel properties effectively during operations at very low temperatures. Operating above this limit helps maintain fuel flow consistency, prevents fuel icing, and ensures that engine performance is not adversely affected during critical phases like takeoff.

While other temperatures listed might be below the operational thresholds for fuel, they do not align with the CRJ 200's safety and operational parameters, which are specifically configured to avoid issues at the limit of -40°C. Understanding these limitations is vital for flight operations, especially in cold weather scenarios, making it crucial for pilots to adhere to such specifications for safe and efficient flying.