What is a recommended action when diverting to an alternate airport due to an emergency?

When diverting to an alternate airport due to an emergency, applying rule-of-thumb computations is a practical and efficient approach for a pilot. This technique allows for quick calculations based on the aircraft's performance, weather conditions, and available fuel, enabling the pilot to make informed decisions about heading, distance, and descent rate as they navigate towards the alternate airport.

This method is especially valuable in emergency situations where time is of the essence, and the need for rapid assessment can determine the safety and success of the diversion. By using rule-of-thumb calculations, pilots can estimate fuel consumption, time en route, and ensure they maintain necessary safety margins, which are all critical factors in successfully managing a diversion.

Other considerations, such as increasing altitude or consulting flight manuals, may be relevant in certain contexts, but they do not provide the immediate, actionable information that rule-of-thumb computations offer in the pressure of an in-flight emergency.