This is an actual customer question and my answer about a Falcon 900 API winglet retro fit.
Dear Mark,
Is it normal for outboard slats not to retract fully after winglet installation? Outboard slats do not retract to fully retract position.
Warner, Falcon 900 Operator
Warner,
We get this question a lot.
The quick answer is this forward slat rigging is intentional and is to avoid slat buckling.
The longer answer is API had to take this design action to avoid slat buckling to get the winglet modification STC (Supplemental Type Certificate) approved. So in conjunction with Dassault, API developed the configuration in which the slats are very slightly down-rigged when stowed.
Thanks for the great question.
Falcon 7X Wing to Winglet Splice Plate Corrosion
Do Not Delay. The Universal Avionics FMS GPS Rollover Software Update Is Only Months Away
Obsolete SD Camera Systems On Your Gulfstream Aircraft Need Upgrades
Top 5 Things You Need To Know To Ensure A Smooth Aircraft Engine Maintenance Event
Get The Latest Market Intelligence With The 2024 Third Quarter Business Jet Model/Market Summary