PPRuNe Forums - View Single Post - PIA A320 Crash Karachi
View Single Post
Old 26th May 2020, 18:56
  #670 (permalink)  
henra
 
Join Date: May 2010
Location: PLanet Earth
Posts: 1,329
Received 104 Likes on 51 Posts
Originally Posted by silverstrata
Are those kind of descent rates possible on final approach, without the gear?
They went from 2000’ to 100’ in 1.4 minutes, while slowing down from 240 to 210 kts.
That is about 1500’/min, while slowing down.
I don’t think the ‘bus would do that, without some gear assistance.
Hmm, with Flaps 3 that could probably be doable. Leaving decelleration aside that would be a glide ratio of 15. That's about what the Bus would do in clean config at that speed. With Slats and flaps 3 but gear up a decel from 240 to 210 (30% less energy = 30% more drag) with the same flight path doesn't seem unreasonable.

Last edited by henra; 26th May 2020 at 19:20.
henra is offline