| 摘要 |
Provided is a pneumatic radial tire for aircraft that includes a radial carcass constituting a backbone structure of the tire, a belt (6) disposed along an outer periphery of a crown region of the radial carcass, and at least one protective layer (7) disposed along an outer periphery of the belt (6) and formed by a plurality of cords (9). The cords (9) in the protective layer (7) are curved in a sinusoidal shape and disposed in parallel with equal phase. An acute inclination angle theta between an amplitude center line of each cord (9) relative to a tire circumferential direction, a half amplitude a of each cord (9), and a wavelength lambda of each cord (9) satisfy the relationship: tan theta>2pia/lambda>0.4 (0°<theta<90°).
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