PPRuNe Forums - View Single Post - Loss of engine cover on Southwest Boeing 737-800 prompts FAA investigation
Old 8th Apr 2024, 09:02
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Jump Complete
 
Join Date: May 2002
Location: U.K.
Age: 47
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Originally Posted by waito
Yes, it was a Flaps Up Landing.
I wonder what the Groundspeed was - especially in Denver!! Anybody to retrieve Vref? What was the winds and temperatures at that time?
Just looked at the QRH performance, for a 65000KG (143000lbs) landing, trailing edge flaps up and no reversers, Max Manual brakes, I came up with a distance of just over 5000’, roughly half the landing distance available.
VREF 40 at 65T is around 140kts and the checklist suggests VREF 40+ 40kts for trailing edge flaps up (180kts) or 55kts for all flaps up. So flying plus 5kts gives a rather tasty 200kts approach speed!
(Just figures based on a nearly max weight landing without knowing any details other than looking up Denver and seeing it is 5500’ ish elevation.)
EDIT: Figures are for a 737-800, 15*, at home base which is 680’ elevation. So speeds for Denver will be even higher, probably!
My figures for All Flaps up landing, Max manual braking come to just over 6000’.

Last edited by Jump Complete; 8th Apr 2024 at 09:32.
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