Why no more multi-slot flaps? -

Slotted Flaps – a modification made to plain flaps, essentially a more advanced design that creates a slot-like gap between the flap and the

single-slotted flap Figure 7: A single-slotted flap Fowler Flap Referring to Fowler flaps can be combined with multiple slots to produce a slotted-fowler

single slot shelf brackets Slotted flaps have slots or gaps, which like Fowler flaps The double-slotted flaps have the same function as the single-slotted flaps

single slot substitution drill Because of structural complexity and difficulty in sealing the slots, Fowler flaps are most common on larger airplanes Single-slot type wing flaps; Adjusted