Image Item No. Description By  3709b  Technic, Plate 2 x 4 with 3 Holes Catalog: Parts: Technic, Plate 4  32001  Technic, Plate 2 x 6 with 5 Holes Catalog: Parts: Technic, Plate 2  3738  Technic, Plate 2 x 8 with 7 Holes Catalog: Parts: Technic, Plate 473  32125  Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Catalog: Parts: Technic, Plate 2  64566  Technic, Plate Rotor 6 Blade with Clip Ends Connected (Water Wheel) - Hollow Studs Catalog: Parts: Technic, Plate 125