BIAS PLY AIRCRAFT TIRE

摘要

A bias ply pneumatic aircraft tire has carcass plies and/or breaker plies which are reinforced by flat nylon monofilaments. The nylon monofilaments in the carcass plies and/or breaker plies have an oblong cross-section, and the following characteristics: at least 2,000 denier, a tenacity of at least 6 g/denier, an initial modulus of at least 30 g/denier and a shrinkage of at most 5%. It has been discovered that bias plied composites made using nylon monofilaments demonstrate a stiffness about 20-50% greater than multifilament composites having the same approximate rivet area. An aircraft tire made using such monofilaments shows good burst strength when built with carcass plies wherein the monofilaments have a concentration of 8-16 EPI. Burst strength properties may be further improved by incorporating such monofilaments in breaker plies at a concentration of 8-14 EPI.