FrankVanderZande wrote:
>
> Many years ago I toured a INCO nickle processing operation.
> There I saw huge rotating drums (well in excess of 100 tons)
> crush ore. The center shafts of these drums were not rotating
> in ball bearings but in blocks of wood that had been soaked in oil.
>
> Since I saw that, I've always thought that would be a good way
> to handle masts. Place a block of oil soaked wood in a metal
> frame on top of the tower and drill the hole to match the mast.
>
> Anyone doing this?
>
> - Frank VE7AV frank@fortress.net
>
When I operated from Woodlands, Montserrat in 1983 the top thrust
bearing
on the tower was a wooden block. The mast supported a A3 with a 6 meter
yagi stacked above it. It worked.
73/DX/Doug/VE5RA
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