Working reinforcement (2) of airplane tire (1) is radially inside tread (3) and radially outside carcass reinforcement (4), comprising carcass layer (41). Working reinforcement (2) comprises working biply (21) of greatest axial width (L.sub.T) and two axial ends (E). Hoop reinforcement (7) comprises hooping layer (71) radially inside working biply (21), and having axial width (L.sub.F) at least equal to 0.8 times L.sub.T. Distance D between axial end (E) of greatest axial width (L.sub.T) and its orthogonal projection (I) onto the radially outermost carcass layer (41) is at least equal to 7 mm and the distance D between point (F) of working biply (21) of greatest axial width (L.sub.T), axially inside axial end (E) at a distance L equal to 25 mm, and its orthogonal projection (J) onto the radially outermost carcass layer (41) is at least equal to 4 mm and at most equal to the distance D.

Airplane tire comprises working reinforcement (2) radially inside of tread (3) and radially outside of carcass reinforcement (4). working reinforcement (2) comprises working biply (21). The radially innermost working biply (21) has the greatest axial width (L.sub.T) and comprises two axial ends (E). Carcass reinforcement (4) comprises carcass layer (41). Distance (D) between axial end (E) of the radially innermost working biply (21) and its orthogonal projection (I) onto the radially outermost carcass layer (41) is at least equal to 8 mm. Distance (D) between point (F) of radially innermost working biply (21), axially inside of axial end (E) at a distance (L) equal to 25 mm, and its orthogonal projection (J) onto the radially outermost carcass layer (41) is at most equal to the distance (D) and is such that angle (A) equal to atan[(DD)/L] is at least equal to 12.

Provided is a tire comprising at least one reinforcement layer in a tread portion, wherein the reinforcement layer includes a reinforcement element 2 consisting of a plurality of metal filaments 1 that are aligned in a single row without being twisted together, and crosslinked rubber 3 coating the reinforcement element 2, and the metal that constitutes the metal filaments 1 is steel whose surface is coated with a ternary plating of copper, zinc, and iron. This tire has a reinforcement layer with excellent adhesive durability between the steel cord and its coating crosslinked rubber and high fuel efficiency.

A tire (10) not suitable for running flat comprises a crown block (12), two beads (32), and two sidewalls (30) connecting each bead (32) to the crown block (12). The crown block (12) comprises a crown reinforcement (16) comprising a corrugated crown layer (24, 26, 28) comprising corrugations. The sidewall (30) comprises a sidewall insert (90) comprising an elastomeric composition (92) referred to as a rigid elastomeric composition having a modulus at 10% extension greater than or equal to 6 MPa and a maximum thickness (Emax) less than or equal to 5.0 mm.