[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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