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US 8,800,145 B2Granted
Refurbishing method and system for a main rotor blade spar
AssigneeSikorsky Aircraft Corporation
InventorsTapas K. Mukherji, Robert J. Araujo
Life of this patent
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Abstract
A method of refurbishing a rotor blade utilizing a waterjet and an apparatus therefore.
Claims19
A method of refurbishing a rotor blade comprising:
- directing a waterjet to cut a leading edge section from a rotor blade along a leading edge cut line generally parallel to a longitudinal feathering axis;
- and
- directing the waterjet at an angle relative to a rotor blade contour to separate a leading edge sheath portion from the rotor blade, wherein the rotor blade includes a spar separate from the leading edge and the leading edge sheath portion.
A method of refurbishing a rotor blade comprising:
- directing a waterjet to cut a leading edge section from a rotor blade along a leading edge cut line generally parallel to a longitudinal feathering axis;
- directing the waterjet at an angle relative to a rotor blade contour to separate a leading edge sheath portion from the rotor blade, wherein the rotor blade includes a spar separate from the leading edge and the leading edge sheath portion;
- and
- directing the waterjet to cut a trailing edge section off of the rotor blade along a trailing edge cut line generally parallel to the longitudinal feathering axis.
1 more element
Dependencies are inferred from the claim text.