Bombowiec strategiczny Boeing…

Bombowiec strategiczny Boeing B-52 Stratofortress na drewnianej platformie (38 metrów wysokości) podczas testu na ładunek EMP. Rusztowanie jest wykonane z drewna. Tutaj widok na google maps
„The facility is the largest wood-and-glue laminated structure in the world. Aircraft tested here are subjected to up to 10 million volts of electricity to simulate the effects of a nuclear explosion and assess the “hardness” of electrical and electronic equipment to the EMP pulse generated by a nuclear burst.”
„The primary wooden structure of Trestle was 1,000 feet long, 125 feet (about 12 stories) tall, and constructed of 6.5 million board-feet of lumber, sufficient to support a fully loaded B-52 (then the largest and heaviest strategic bomber in the US inventory) while also minimizing any chance of interference from the ground or the structure itself, creating a reasonable simulation of airborne conditions. A mix of Douglas Fir and Southern Yellow Pine were used for the timbers, as both showed excellent EMP transparency with the former having the best tensile strength and the latter the best weather resistance. By using an all glued laminated timber structure and woodworking joints to mate the giant timbers, with the joints being held together with wooden bolts and nuts, measurements from the EMP tests would not be skewed by large amounts of ferrous material in the structure. Some metal was used in the construction as critically loaded joints incorporated a circular steel sheer ring that surrounded the wooden bolt clamping the joint. Even the fire escape along one side of the trestle and the whole of the extensive fire suppression piping were constructed of fiberglass.”Artykuł
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