thats very interesting. We are building antenna-systems for cellphone-communication.
In germany, we design the towers/buildings to withstand a wind loading at 150 km/h.
That gives a pressure of 1,10 kN/m^2 (110 kg/m^2). When using 250 km/h, you get
a pressure of 3,00 kN/m^2. Your houses must have a "load-capacity" by a factor
of 3 than in germany . Do you use the same design manual for the whole US?
Especially I am intersted in how you design your communication system at 250 km/h,
when the antenna itself has a survival-speed of 200 km/h?