MUMBAI, India, Sept. 12 -- Intellectual Property India has published a patent application (202441016569 A) filed by Hindustan Aeronautics Limited, Bangalore, Karnataka, on March 7, 2024, for 'apparatus to assist rigging of rotor blades of rotorcraft.'
Inventor(s) include K Subramanian; and Dr. K R Prashanth.
The application for the patent was published on Sept. 12, under issue no. 37/2025.
According to the abstract released by the Intellectual Property India: "An apparatus (4) to verify the pitch angle of rotor blade (3) mounted on main rotor head (2) of a rotorcraft (1) comprising; a fixture assembly (8) mounted on the hub plate (2a) of said main rotor head (2); wherein said fixture assembly (8) further consists of an angular scale (10), a fixture (11), a bracket (12), a holder (13) and a locking arrangement (14) to lock the said fixture assembly (8) on hub plate (2a); a pointer assembly (9) mounted on the root segment (3a) of said rotor blade (3); wherein said pointer assembly (9) further consists of a pointer (23), a pointer holder (24), a bracket (28) and a clamp (29); provision for mounting an existing azimuth pointer (6) in the said fixture assembly (8) for measurement azimuthal position of rotor blade (3) with respect to reference axis (101) of rotorcraft (1), using an existing azimuth scale (7)."
Disclaimer: Curated by HT Syndication.
