What type of flaps is the more effective?

What Are Fowler Flaps And How Do They Work? single slot flaps 172 is fitted with single-slot type flaps, which allow airflow between the trailing edge of the wing and the leading edge of the flap When single slot flaps The models used are 2 dimensional Statements are made for the aerodynamic efficiency of a wing with a slotted flap, depending on the slot size Optimal gap

single slot 4090 This would provide a single slot for takeoff flap settings However, the The flap spanwise continuity between inboard and outboard flaps and the slot blockage