Why is a low throttle setting near idle inappropriate for turbine-powered aircraft?

A low throttle setting near idle is inappropriate for turbine-powered aircraft primarily because these engines are typically slower to respond to changes in power settings. Turbine engines operate efficiently at higher power settings where their design allows for rapid acceleration and deceleration. When throttled back too far, especially near idle, the engine may not produce enough thrust to meet the demands of flight, particularly during critical phases such as takeoff, climb, or approach.

This sluggishness can be especially dangerous in situations requiring immediate power adjustments, such as encountering unexpected obstacles or during go-around procedures. An instant response is crucial in maintaining optimal flight performance and safety, which is why maintaining the throttle at appropriate levels is essential in turbine aircraft operations.

In contrast, another potential reason regarding flameouts at low RPMs specifically pertains to certain operational conditions rather than the overall characteristics of turbine engines and is not universally applicable to all turbine operations. Other factors, such as drag, fuel consumption, and operational efficiency, become secondary to the importance of immediate throttle response and controllability during flight maneuvers.