US 11,655,052 B2
Method and apparatus for locating and forming fastener holes in a replacement tip section of a rotor blade
Sven R. Lofstrom, Irving, TX (US); Robert D. Higbie, Haslet, TX (US); Frank M. Caputo, Cheshire, CT (US); Ryan Lehto, Crowley, TX (US); Timothy James Conti, Shelton, CT (US); and Eric Charles Boyle, Haslet, TX (US)
Assigned to SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US)
Filed by Sikorsky Aircraft Corporation, Stratford, CT (US)
Filed on Jun. 22, 2021, as Appl. No. 17/354,684.
Application 17/354,684 is a division of application No. 16/100,971, filed on Aug. 10, 2018, granted, now 11,066,188.
Prior Publication US 2021/0309390 A1, Oct. 7, 2021
Int. Cl. B64F 5/10 (2017.01); B64C 27/473 (2006.01); B64F 5/40 (2017.01); B23B 35/00 (2006.01); B23P 6/00 (2006.01); B23B 47/28 (2006.01); B64C 27/46 (2006.01)
CPC B64F 5/40 (2017.01) [B23B 35/00 (2013.01); B23B 47/28 (2013.01); B23P 6/005 (2013.01); B64C 27/473 (2013.01); B23B 2215/04 (2013.01); B64C 27/463 (2013.01); B64F 5/10 (2017.01)] 17 Claims
OG exemplary drawing
 
1. A method of forming fastener holes in a replacement tip section of a rotor blade, comprising:
identifying a datum of the replacement tip section;
forming a hole in the replacement tip section using a first fixture mounted to the rotor blade, the first fixture being mounted at a position about the replacement tip section based on the datum; and
countersinking the hole in the replacement tip section using a second fixture mounted to the rotor blade, the second fixture being mounted at a position about the replacement tip section based on the datum, wherein the second fixture is removably mounted to the rotor blade at a same position as the first fixture.