[Towertalk] Wind info for VE7 - where can I find it?

[Chris BONDE]

Yes, and they were not suppose to soft convert like that.  Our highways 
speeds were not, and many other things werenot.  Oh, well, bureaucrats do 
what they like.

Chris opr VE7HCB


At 03:18 PM 2002-08-15 -0400, Jimmy Weierich wrote:
>On Thu, 15 Aug 2002 Hank Lonberg wrote:
>
>>The BC code and National Building Code of Canada do not
>>use wind velocity. They use a design velocity pressure
>>in kPa based on recurrence frequencies of 1 in 10yrs, 1
>>in 30yrs, and 1 in 100yrs. The value you seek is the 1
>>in 30yr value.
> From Appendix C 1998 BCBC, the values for Vancouver,
>>including Richmond, Surrey and W. Vancouver are as
>>follows:
>>
>>1 in 10 : 0.36 kPa  = 7.72 psf
>>1 in 30 : 0.44 kPa  = 9.19 psf
>>
>>You could convert these to mph via p=0.00256*V^2.
>>Like all codes the design pressure is modified by
>>several factors to account for terrain, gusting and
>>height above the ground.
>
>Amazing how the conversion yields almost exactly 55 and 60 mph!
>
>
>--
>Jimmy Weierich, K2LV,   ex KG2AU       <kg2au@stny.rr.com>
>Vestal, NY  USA           FN12xa
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