This is a balanced counter-clockwise replacement prop set for a single motor, including the ActiveBlade hub, for booms 1 or 3.
Activeblade compensates for the dissymmetry of lift and cyclic loading as the ALTA blasts across the sky. In our testing ActiveBlade reduced peak vibration levels to 1/5th of their normal level which allows for better flight performance and reliability.
Reference the Alta X Flight Manual Maintenance section for instructions for removing and installing replacement prop sets.
Does not include Loctite required for installation (243 or equivalent)