BOAS with radial load feature
This disclosure relates to a gas turbine engine including a blade outer air seal (BOAS) having at least one attachment hook adjacent one of a leading edge and a trailing edge thereof. The BOAS further includes at least one radial standoff axially aligned with the at least one attachment hook.
1. A gas turbine engine, comprising:
a blade outer air seal (BOAS) having at least one attachment hook adjacent one of a leading edge and a trailing edge thereof, and at least one radial standoff axially aligned with the at least one attachment hook, wherein the radial standoff extends circumferentially beyond a circumferential edge of the BOAS to provide a boundary of a featherseal slot.
2. The engine as recited in claim 1 , wherein the BOAS includes first and second circumferential edges, the at least one radial standoff provided adjacent the first circumferential edge.
3. The engine as recited in claim 2 , wherein the radial standoff radially overlaps a second circumferential edge of an adjacent BOAS.
4. The engine as recited in claim 2 , wherein an outer boundary of the featherseal slot is provided by the at least one radial standoff and an inner boundary of the featherseal slot is provided by the adjacent BOAS.
5. The engine as recited in claim 1 , wherein the at least one radial standoff includes a first and second radial standoff, and wherein the at least one attachment hook includes a first attachment hook adjacent a leading edge of the BOAS and a second attachment hook adjacent a trailing edge of the BOAS.
6. The engine as recited in claim 5 , wherein the first radial standoff is axially aligned with the first attachment hook, and wherein the second radial standoff is axially aligned with the second attachment hook.
7. The engine as recited in claim 6 , wherein each of the first and second attachment hooks include a radial portion extending upwardly from a main body of the BOAS, the radial portion of the first attachment hook and a radial portion of the first radial standoff provided in a first plane, the radial portion of the second attachment hook and a radial portion of the second radial standoff provided in a second plane.
8. The engine as recited in claim 1 , wherein the at least one radial standoff extends substantially the same height above a main body of the BOAS as the at least one attachment hook.
9. The engine as recited in claim 8 , wherein an upper surface of the at least one radial standoff engages an engine static structure.
10. A blade outer air seal (BOAS), comprising:
at least one attachment hook; and
at least one radial standoff axially aligned with the at least one attachment hook, wherein the radial standoff extends circumferentially beyond a circumferential edge of the BOAS to provide a boundary of a featherseal slot.
11. The BOAS as recited in claim 10 , wherein the at least one attachment hook extends substantially the same height above a main body of the BOAS as the at least one attachment hook.
12. The BOAS as recited in claim 10 , wherein the at least one radial standoff includes a first and second radial standoff, and wherein the at least one attachment hook includes a first attachment hook adjacent a leading edge of the BOAS and a second attachment hook adjacent a trailing edge of the BOAS.
13. The BOAS as recited in claim 12 , wherein the first radial standoff is axially aligned with the first attachment hook, and wherein the second radial standoff is axially aligned with the second attachment hook.
14. The BOAS as recited in claim 13 , wherein each of the first and second attachment hooks include a radial portion extending upwardly from a main body of the BOAS, the radial portion of the first attachment hook and a radial portion of the first radial standoff provided in a first plane, the radial portion of the second attachment hook and a radial portion of the second radial standoff provided in a second plane.