Vertically oriented seal system for gas turbine vanes

A seal system comprising:

• a first seal layer comprising a plurality of first seal segments, wherein respective first gaps are defined between each respective pair of first seal segments, each first seal segment of the plurality of first seal segments comprising a first leg, a second leg, and an intermediate portion connecting the first leg to the second leg;
• and
• a second seal layer comprising a plurality of second seal segments equal in number to the plurality of first seal segments, the plurality of second seal segments being positioned adjacent the first seal layer to block the first gaps;
• wherein each first seal segment is coupled to a single radially adjacent second seal segment by a spot weld, a rosette weld, a braze joint, or a flat-headed rivet and is coupled to a different second seal segment by a non-durable adhesive or a removable fastener, the different second seal segment and the single radially adjacent second seal segment being circumferentially adjacent;
• and
• wherein the first seal layer and the second seal layer define a substantially complete perimeter of a seal slot in which the first seal layer and the second seal layer are vertically installed.