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B737 with Winglets - too twitchy on Landing ?

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B737 with Winglets - too twitchy on Landing ?

Old 10th Dec 2018, 07:23
  #1 (permalink)  
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Join Date: Jan 2016
Location: South Wales
Posts: 5
B737 with Winglets - too twitchy on Landing ?

Just seen another 737 with big winglets come off the runway, - see SouthWest Airlines thread

The winglets will make the A/C more sensitive to crosswinds especially on landing, a gust from the right will try and roll the A/C to the left with extra lift on the right wing.
Adding winglets makes the matter worse as the winglets will also try and roll the A/C to the left.

I seem to have seen a lot of these. is there any statistics that show a difference between "classic" non-winglet 737 runway excursion rate compared to winglet ones?
libellegeoff is offline  
Old 10th Dec 2018, 08:45
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Join Date: Mar 2003
Location: Stansted
Posts: 181
Have been flying 737s for 20 years and with bits bolted on the wings since they were developed.

Main reasons for overruns involve some or all of the following;

Landing too fast, too long, poor x-wind technique and/or poor decision making not to go around when the option was still on the table.

Winglets have nothing to add imho.
Say Mach Number is offline  
Old 10th Dec 2018, 09:20
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Join Date: Jul 2004
Location: Netherlands
Posts: 636
Yep i agree with Say. Have flown PG and NG 737ís, with and without surfboards for 1000ís of hours, and didnít notice any winglet effects. In fact, this is the very first time that i ever read about it, which made me think for a while. But in all honesty, I must say that there isnt ANY effect.
fox niner is offline  
Old 10th Dec 2018, 11:40
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Join Date: Jun 1999
Location: world
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Arguably, probably more to do with poor decision making and deteriorating airmanship (by some) which is fast becoming prevalent in these times rather than winglets!
Hotel Tango is offline  
Old 10th Dec 2018, 11:47
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Join Date: Mar 2005
Location: Munich, DE
Age: 48
Posts: 13
The winglets on the NGs take 3 kts off max demonstrated crosswind (33 v 36 on flat-wing ones), but runway excursions have a lot of influencing factors... most of which have to do with poor decision making.
averdung is offline  

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