3 Blade UL Power Ground Adjustable High Speed Propeller

Improve your Aircraft’s performance with our 3 blade propeller designed specifically for UL Power 390 and 520 series powered aircraft such as Van’s RV. This propeller is now manufactured using an prepreg compression molding process on foam core to produce a stiff, one piece blade. This process yields very repeatable blades with maximum strength, durability, and low weight.  Don’t confuse this propeller with other propellers that are manufactured as two pieces and then bonded together afterwards.  This propeller has the strength and durability to give you thousands of hours of trouble free flying. This propeller features a co-cured bonded stainless steel leading edge for erosion and FOD protection.  The two piece hub is manufactured from aerospace grade aluminum and is shot peened for durability and anodized for corrosion protection. Our Pitch Gage System allows users to set a broad range of pitches, without need for a protractor. This 3 blade propeller is suitable for use on the UL Power 390is, 520i, and 520is engines.  The blades can be trimmed from the maximum 65.5″ diameter to 61.5″ diameter. This propeller mounts with 3/8″ bolts only!