Tradeoff Study between Cost and Environmental Impact of Aircraft Using Simultaneous Optimization of Airframe and Engine Cycle

Table 4

Optimization problem constraints.

Constraint	Value
Design mission range (km)	12000
Takeoff field length (m)	≤2700
Landing field length (m)	≤1750
Engine-out climb gradient	≥0.024
Rate of climb at TOC (m/s)	≥1.5
Fuel volume	≥required block fuel volume