I just called US Tower again (209)733-2438 and the lady verified the
figures. I passed on your comments and she said she would have the owner
(Bruce) call me this afternoon within two hours.
Again, the 200# wt limit and 22.8 sq feet is quoted for the HDX572 fully
extended with a ONE FOOT maximum extension of their 5 foot mast at wind
velocity of 70mph.
Now, it may turn out that they don't include their 5 ft mast weight in the
200# limit. Whatever, it seems to me that a great number of hams are
'overloading' their towers - almost anyone who is stacking on extended masts.
I'm anxiously awaiting the call from Bruce. Thanks for your response.
Frank - W0ECS
>I wonder where u got those specs? After my last message, I checked my
>original notes. US Tower told me 500# but I never could get a 70 mph
>rating. 200# is way too light! Any 4130 mast of 20 feet weighs well over
>100# and these towers are designed for big antennas!
>73 de Jeff K2KV
>> BTW, I did get the 'missing' wind load and dead weight specs for the HDX572:
>> 200# dead weight and 22.8 sq feet at 70mph
>> The HDX572 wind load capacity is considerably more than the LM470 (7.8 sq ft
>> is enough to accommodate stacking an extra yagi - all other things being
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