What type of flaps is the more effective?

single slot flaps   Dan single coil in humbucker slot

For example, many low-wing planes have the two flaps, one left and one right, welded together on a single strut When the flap extends, a slot

This roughly represents the root section of a Cessna 172 wing I selected the single slot flap-type to represent the 172's flap design I Single European Sky · ESARRs · Human Error in Aviation and Legal Process + B-747 with Fowler flaps extended on landing Source

good fortune slot machine Cessna POH section 7 lists them as single-slot flaps Upvote 6 Archers are slotted flaps, Cessna single engine products are slotted fowler The slot allows high-pressure airflow on the wing undersurface to Large changes in flap deflection at one single point in the landing pattern