It's simply for pilot workload. In a bingo profile you don't have to think. There aren't any difficult charts to pull out and graphs to stare at. The reason for the idle descent is just that. In a max range profile you would be climbing/descending in steps. Not so with the bingo. Get up there fast, stay there, and then come down, just like kcmac12 indicated.
Now who can tell me why a C-2 may bingo after only 1 bolter, and yet prior to that have enough fuel to stay airborne for hours??? (Note to old guys, this isn't a tough question, nor is it intended for you)
Now who can tell me why a C-2 may bingo after only 1 bolter, and yet prior to that have enough fuel to stay airborne for hours??? (Note to old guys, this isn't a tough question, nor is it intended for you)