Hi,
Modern turbine engines are designed to operate optimally at a single flight condition, and are compromised at other mission points. Currently pilots must use the throttle to match thrust when conditions are not optimal. This results in diminished fuel efficiency and performance
a-If this statement is true regarding commercial aircraft, at what phase of flight the engines will operate optimally?
b-If this quote is true, does it apply to all aircraft gas turbine engines (turbofan, turbopropeller,…)? What about aircraft piston engine?
Your feedbacks are appreciated. Thank you.