[Fourlanders] Pneumatic mast
Bob Lear
w4zst at windstream.net
Wed May 6 19:52:35 PDT 2009
The original pneumatic mast from K4IDC's buttercup rover vehicle is
available for sale. Greg bought it from Robin and has decided he isn't
going to use it and has let me know about it. It is 30' and Robin had
it rigged with cross arms for his yagis. Yagis can also be mounted
directly to the mast if desired. The mast is keyed and the sections
don't rotate independently like some pneumatic masts designed for a
single vertical antenna or something like that. He had it mounted in
buttercup, a chevy van, with hole through the roof and a thrust bearing
there. It sat on top of a rotator mounted on the floor of the van so
the entire mast rotated. A very nice mast for a rover application. He
extended it with air from scuba tanks, but with all the portable air
compressors around these days, air supply shouldn't be a real issue.
I have some pictures that I can scare up if someone is interested in it.
Let me know
Bob
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