We know all textbooks say that flaps are supposed to increase drag and cause a steeper approach angle (w/out increase in airspeed) during a landing, while in a flapless landings, the a/c must fly a shallower approach and slightly higher speed to maintain the same amount of lift but also not to pick up excessive airspeed. But when my instructor showed me a flapless landing, the "picture" did look shallower, but we still maintained a 2 reds 2 whites glideslope? He said in a flapless landing, just like in a flap extended landing, it is still possible to maintain a VASI glideslope. This totally confused me: if the approach is shallower with a flapless, why didn't I see 3 reds and one white or maybe all reds, as this would have been consistent with a shallower approach? Please unconfuse me
