If by saying "Fowler Flaps" you mean that they must move aft and down, then the flaps on Cessna singles fill the bill. On a full-size 182, they move aft about 8" and add nearly 30 square feet of area to the wing. Close inspection of the full-size aircraft will show that the flaps move on tracks are are not hinged. The MUST move aft in order to deflect downward. Yes, they ARE single-slotted flaps, but they are more than flaps with a hinge line below the wing's lower surface. Piper Cherokees have a single-slotte flap that rotates on an offset hinge, as do many airplanes, but they don't move aft on tracks.
On the Top Flite Cessna 182 Skylane kit, the operative word is "simulated". They don't fully-replicate the prototype's operation.
This link shows how a flap track for Fowler flaps, very similar to the Cessna tracks work in an RC model:
http://homepage.mac.com/mikejames/ne...rc_setups.html