Vane retainer

A vane assembly for a gas turbine engine, comprising:

• a vane having:
• an airfoil portion;
• and
• a vane stem extending from the airfoil portion;
• a bushing into which the vane stem is inserted, a vane stem outer surface abutting a bushing inner surface;
• and
• a vane retainer engaged with the bushing at a bushing outer surface, including:
• a retainer body;
• a threaded inner surface of the retainer body to engage complimentary threads of the bushing;
• and
• a plurality of castellations disposed at a distal end of the retainer body for engagement with complementary installation tool features during installation of the vane retainer to the bushing.

A gas turbine engine, comprising:

• a combustor;
• and
• a plurality of vane assemblies in fluid communication with the combustor, each vane assembly including:
• a vane having:
• an airfoil portion;
• and
• a vane stem extending from the airfoil portion;
• a bushing into which the vane stem is inserted, a vane stem outer surface abutting a bushing inner surface;
• and
• a vane retainer engaged with the bushing at a bushing outer surface, including:
• a retainer body;
• a threaded inner surface of the retainer body to engage complimentary threads of the bushing;
• and
• a plurality of castellations disposed at a distal end of the retainer body for engagement with complementary installation tool features during installation of the vane retainer to the bushing.