interesting scenario from me recently, on a base leg 180kts f1… green yoyo = on profile however glideslope giving more than 2 dots below the glide.. what do you recommend to do in this case? F2 out and shallow to get the glide?
When you are on base leg, the glide slope is not valid. The glide slope is only valid if you are two dots on the localizer, some airports only one dot. Also, being on the yoyo does not necessarily mean you are on profile as it is not always correct. The only way to find out if you are on profile is to calculate with distance, altitude, and speed. But let's say that you are indeed below profile. The way to fix that is by adding thrust, not by adding drag or slowing down. Flap 2 gives the same amount of drag as speed brakes. And although slowing down does indeed make the deacent angle shallower, now you are slow causing a delay and piss off ATC. That is why you should just use VS-500 to fix that, but again, it is questionable if you were actually below profile or not. Read my book. It's only 10 usd on Amazon kindle. All this knowledge is all in there.
Thanks! Very useful info which somehow was never explained quite this clearly during my type-rating/line training
interesting scenario from me recently, on a base leg 180kts f1… green yoyo = on profile however glideslope giving more than 2 dots below the glide.. what do you recommend to do in this case? F2 out and shallow to get the glide?
When you are on base leg, the glide slope is not valid. The glide slope is only valid if you are two dots on the localizer, some airports only one dot. Also, being on the yoyo does not necessarily mean you are on profile as it is not always correct. The only way to find out if you are on profile is to calculate with distance, altitude, and speed.
But let's say that you are indeed below profile. The way to fix that is by adding thrust, not by adding drag or slowing down. Flap 2 gives the same amount of drag as speed brakes. And although slowing down does indeed make the deacent angle shallower, now you are slow causing a delay and piss off ATC. That is why you should just use VS-500 to fix that, but again, it is questionable if you were actually below profile or not.
Read my book. It's only 10 usd on Amazon kindle. All this knowledge is all in there.