Figure 1. Optimal and altitude and velocity profile for different flight planning concepts, namely: free-flight (green), optimized-procedured (orange), and fully-procedured (red). See Soler et al. Journal of Aircraft 2012.

Figure 1. Optimal and altitude and velocity profile for different flight planning concepts, namely: free-flight (green), optimized-procedured (orange), and fully-procedured (red). See Soler et al. Journal of Aircraft 2012.