REDUCED WEIGHT AIRCRAFT TIRE

A pneumatic tire (8) is disclosed comprising a tread (12), a carcass (30) positioned radially inward of the tread (12) and comprising a carcass ply (34a) having a first concave portion, and a belt structure (40) positioned radially inward of the tread (12) and radially outward of the carcass (30) and comprising a belt ply (44a) having a second concave portion. A radial distance (d) is constant or substantially constant between the carcass ply (34a) and the belt ply (44a), including the first and second concave portions, respectively.