With the two 7 1/2-inch beams, the six beams make up the base of the catapult and two support arms extending upward. Two more beams, a crossbar and angled beam, are added to complete the support ...

But Sulich’s interest lies a few steps away, in a concrete-and-steel trench more than 300 feet long, where a new catapult, also aimed down the runway, is under construction. When complete in ...