A hangar has been under construction at Paine Field for a while and, while so much time has been taken up by the preparation of the groundwork, I happened to be there when they were assembling the frame of the hangar.  The long span that the finished structure will have is built up of two pieces with the side beams and the roof beams for one side being assembled on the ground and then two cranes being called in to lift both halves up simultaneously so that they can be bolted in the center to provide the rigidity needed.

Seeing the cranes holding these large frames in place and the crews using scissor lifts to get up to put the connections in place was quite neat.  Once the frames are in place, the process of cladding the building can take place in slower time.  Those cranes will have been expensive to rent so getting that heavy lifting done as fast as possible will have been the goal.