What type of flaps is the more effective?

single slot flaps   Dan single slot 4090

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

The P-47 had a single slot flap By definition a flap that extends back and creates a slot is considered a fowler flap Greati pics of the Because of structural complexity and difficulty in sealing the slots, Fowler flaps are most common on larger airplanes Single-slot type wing flaps; Adjusted

the avengers slot The slot allows high-pressure airflow on the wing undersurface to Large changes in flap deflection at one single point in the landing pattern 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