Summary of the article:
"Mechanical property and dimensional data from a 29-
year-old nylon parachute revealed no strength loss,
shrinkage or other evidence of degradation. This data
supports previous estimates of storage life degradation
that indicate miniIll2l1 strength loss for parachutes
stored 25-30 years. Fourteen-year data on nylon and
Kevlru4' fabrics stored in four different climatic zones
also show no evidence of material degradation."