XOAR PJWWI Scimitar 18x6 Light RC Warbird Airplane Propeller. 18 Inch 2 Blade WWI Giant Scale Wood Prop for Gas Engines PREMIUM MATERIAL: Made of Premium Top Grade German Pollmeier Lumber. It is excellent for minimal elongation, breakpoint and distortion, therefore it is the best for making Warbird Wooden Model Airplane Propellers. CNC DIGITAL IMAGING: CNC digital imaging process ensures consistent quality in diameter, propeller blade profile and pitch which are all crucial for RC aircraft performance. PRE-BALANCED* : Each Xoar prop is manually finished to reach perfect surface smoothness. It is balanced both horizontally and vertically for minimal vibration caused by airplane propeller. SPEC: Style: Scimitar | Color: Light Wood | Diameter: 18 in | Pitch: 6 | Weight: -g | Shaft Diameter: 8mm | Type: Tractor Propeller COMPATIBLE ENGINES: Giant Scale RC Planes with 30 - 40 cc Engines - DLE30, EVOE33GX or similar