We then validated the design in digital imaging and other necessary procedures to prove the design not only meets the specs, but also is safe to fly. ADVANTAGES Trailing Edges Symmetry: Symmetrical Airfoil increases the range of angles of attack to avoid spin-stall SPECS Model Series: PJA (2 Blade) / PJI (3 Blade) TRUSTED BY PILOTS FROM ALL OVER THE WORLD Engines: DA, DLE, BME, GP Engine, 3W Engine, Birelli, Zenoah, OS Engine, Saito Material: Grade A Beechwood XOAR PJWWII 16x10 RC Propeller for Warbird Airplane. 16 Inch 2 Blade... It is balanced both horizontally and vertically for minimal vibration caused by RC airplane propellers. ABOUT XOAR PJA / PJI BEECHWOOD PROPELLER XOAR Beechwood Propeller is the perfect choice for every level of hobbyist to display their flying skills because of its light weight, high efficiency and accurate performance. Each of the Xoar prop is manually balanced. Product description Xoar PJA (2 Blade) / PJI (3 Blade) Beechwood Prop is the most popular propeller for Model Airplanes. This manual process is only done by the best trained and most experienced craftsman to ensure each propeller meets the quality standard. Most importantly, Xoar PJA / PJI Props come in a full range of specs from 9 to 36 diameters and a well variety of pitch to satisfy all kinds of aircraft and engine specs and desired flight performance. XOAR PJT-E 2 Blade Carbon Fiber Electric RC Airplane WARNING Final balance check is suggested before flight due to external factors such as temperature, handling during transit may vary the balance of the propeller. Manual Propeller Aazon.co: XOAR PJN 12x5 12 Inch 2 Blade RC Airplane Propeller Wood Gas Engine Model Plane Prop Xoar PJA also offers a Pusher Series - PJA-P. Pitch: 4, 5, 6, 7, 8, 10, 12, 14, 16 (Not all pitches are available to all Diameters) Xoar Propellers are ONLY made of Grade A Beechwood for excellent physical property in minimizing elongation, breakpoint and distortion rate by heating process. XOAR offers a wide range of RC propellers in different materials such as Beechwood, Laminates, Nylon, and Carbon for Gasoline, Nitro and Electric RC Planes. There is a right prop for every hobbyist. Xoar PJI 3-blade Beechwood Propeller is made of the best quality German Beechwood for excellent physical property in elongation, breakpoint and distortion rate 4., 1 out of 5 stars Is Discontinued By Manufacturer No Manufacturer XOAR QTY: Package Contains 3 Propellers | Spec: Diameter: 12 in | Pitch: 4 | Weight: 22g | Shaft Diameter: 6mm | Type: Tractor Propeller With numerous tests understanding the physical limitation of different kind of lumber from different manufacturers, we carefully selected the one and only one that fit our requirement of moisture content and physical property in elongation, breakpoint and distortion. Compatible Engines Type: Gas / Glow Engines (3., 5cc to 240cc) Diameter (Tip to Tip): 9 inch to 36 inch (22., 86 cm to 91., 44 cm) WHAT'S INCLUDED 1 x Genuine XOAR PJA Propeller (size of your choice) for RC Gasoline Airplane During the coating process, 2 layers of primer coating and 2 layers of glossy protection coating are applied in order to prevent corrosion.