Er... could you please explain why extending Flaps / lowering the Gear increase Vls?
Hi rudder,
Vls is 1.23 Vs1g and depends on aircraft weight and Slats/Flaps configuration: furthermore it is directly proportional to the parasite drag experienced. Spoilers, Landing gear and flaps -> (above its optimal lift/drag setting eg. Landing Configuration) all increase the amount of drag produced, thus increasing VLS ... even though in normal landing configuration the increase ain't that significant (it is almost balanced by the relatively high lift produced), it will be by extending speed brakes.
Cheers,
fredgrav