Yes the black jacket is to provide UV protection.
I'm still using some Phillystran that I bought in 1978. Now on its fourth QTH.
At 09:10 AM 9/12/02 -0500, you wrote:
>on 9/12/02 7:45 AM, K7LXC@aol.com at K7LXC@aol.com wrote:
>>> It may depend on the vintage of the Phillystran.
>> The measurements I sent were for the newer version of Phillystran which
>> has been out for 10 or more years. You can tie a knot in the newer stuff -
>> it's softer - and you can't in the older stuff.
>I assume the jacket on the Phillystran is UV proof? Kevlar does not do well
>at all when exposed to UV for long periods of time. It gets very brittle.
>How well does the jacket protect.
>I also know from my sailboat racing that Kevlar stretches over time as well.
>Anyone have any issue with that and Phillystran?
>NA9D (ex: KE9NA)
>Life Member: ARRL, NRA
>Member: AMSAT, DXCC
>"A life lived in fear is a life half lived."