What is the recommended airspeed during an engine fire in flight?

The recommended airspeed during an engine fire in flight is aimed at achieving the best balance between maintaining control of the aircraft and maximizing the rate of descent if necessary.

Flying at 100 knots indicated airspeed (KIAS) allows for a stable approach while still enabling the pilot to manage the situation effectively. At this airspeed, the aircraft can maintain a reasonable glide ratio while a controlled descent can be executed in the event of an emergency.

While specific airspeeds can vary depending on aircraft type and weight, pilots generally consider a range that allows for safe maneuverability and control. The recommended airspeed provides enough airflow over the control surfaces for effective handling while also helping to distance the aircraft from potential hazards if a controlled landing is necessary.

Other options, such as 80 KIAS or 120 KIAS, may not offer the same level of stability and control in a fire emergency. For different aircraft or unique situations, there could be variations, but the 100 KIAS serves as a functional baseline that supports maintaining suitable control during an emergency scenario.