The example expresses that when the flight parameter is close to the optimal ones, either changeless posture or constant airspeed flight can highly approach long-range or long-endurance flight.

• 通过算例表明，只要选取的飞行参数接近最佳飞行状态，当采取等姿态、变速度飞行策略时，也能得到接近最佳远航的航程。