How long does an airstart take and what is the expected altitude loss?

In the context of an airstart, a key consideration is the timing and altitude loss during the maneuver. An airstart involves restarting an aircraft's engines while in flight, typically after a flameout situation. The duration of the airstart process can vary based on a number of factors including the type of aircraft and the specific circumstances, but common training scenarios suggest a benchmark time around 40 seconds.

During this time, a typical altitude loss experienced is approximately 1,200 feet. This figure reflects the operational parameters that pilots train under, ensuring they are aware of the potential altitude decrement while attempting to restart the engines. Thereby, both the time and altitude loss become essential knowledge for pilots to manage their energy and maintain safe flight profiles following an engine failure or other interruptions.

The other options present differing combinations of time and altitude loss, which may not align with the standard figures from training and operational guidelines for executing an effective airstart procedure. Thus, the choice indicating 40 seconds for the airstart with an expected altitude loss of 1,200 feet is accurate and establishes a realistic expectation for pilots in similar scenarios.