Dec 7, 2012, 10:56 AM
Post #1 of 8
Gear service life
Many riggers have an opinion about service life for containers, harnesses and canopies. Can anyone direct me to research or a position paper put out by USPA, PIA or FAI that directly addresses length of service for those components or the materials from which they are constructed?
is there research or testing on materials or components out there to support a manufacturers service life claim
Not since the 1940's when they first formulated Nylon.
Most manufacturers I know only make service life claims which limit service life. Sell more gear that way. This is a small market you know. However, if you look at even partially maintained gear made in the 1940 it is servicable. The formal service life of most gear is 180 days or the duration of the inspection (repack) cycle.
Man you should see the 1974 SST I got from Billy Weber, it was his dads... while not mint condition, it's still very airworthy and jumpable, for those who understand the "complexity" of such vintage gear.... LOL
if we have a canopy exceeding a air permeability of 30 cfm it is ok if it is a round canopy even from the 40s
if it is a strato star well let´s look at the wingload :/
if it is a small competition velo it is not a perfect decition
the manual of a given ram air reserve manufacturer states the reserve is build of 0-3 cfm fabric material. if the fabric has more than that (e.g. assymetric 10 cfm or left to right more than 25% difference or simply 30+ cfm ) it is ...?
are there anny borderline readings in the cfm topic available?