A vane assembly for a gas turbine engine, comprising: a first stator vane defining an inner fluid channel disposed radially inward of the first stator vane; a first stator vane buttress comprising a boss disposed radially inward of the first stator vane and extending radially into the inner fluid channel, the first stator vane buttress defining a first stator vane cooling channel extending radially through the first stator vane buttress and into the first stator vane and in fluidic communication with the inner fluid channel; a second stator vane further defining the inner fluid channel disposed radially inward of the second stator vane; a second stator vane buttress comprising a boss disposed radially inward of the second stator vane and extending radially into the inner fluid channel; and a cross vane cooling transfer channel defined through the vane assembly, defining a channel radially inward of the first stator vane and the second stator vane and radially outward of the inner fluid channel and in fluidic communication with the first stator vane cooling channel, the second stator vane defining a second stator vane cooling channel extending radially through the second stator vane and in fluidic communication with the cross vane cooling transfer channel; and a chordal seal comprising an annular flange extending radially inward of the first stator vane buttress and the second stator vane buttress and disposed at an axially aftmost end of the vane assembly, wherein the chordal seal defines at least a portion of the inner fluid channel; the bosses of the first stator vane buttress and the second stator vane buttress being axially adjacent the chordal seal. a first stator vane defining an inner fluid channel disposed radially inward of the first stator vane; a first stator vane buttress comprising a boss disposed radially inward of the first stator vane and extending radially into the inner fluid channel, the first stator vane buttress defining a first stator vane cooling channel extending radially through the first stator vane buttress and into the first stator vane and in fluidic communication with the inner fluid channel; a second stator vane further defining the inner fluid channel disposed radially inward of the second stator vane; a second stator vane buttress comprising a boss disposed radially inward of the second stator vane and extending radially into the inner fluid channel; and a cross vane cooling transfer channel defined through the vane assembly, defining a channel radially inward of the first stator vane and the second stator vane and radially outward of the inner fluid channel and in fluidic communication with the first stator vane cooling channel, the second stator vane defining a second stator vane cooling channel extending radially through the second stator vane and in fluidic communication with the cross vane cooling transfer channel; and a chordal seal comprising an annular flange extending radially inward of the first stator vane buttress and the second stator vane buttress and disposed at an axially aftmost end of the vane assembly, wherein the chordal seal defines at least a portion of the inner fluid channel; the bosses of the first stator vane buttress and the second stator vane buttress being axially adjacent the chordal seal.