The Pentagon is in discussions with engine maker Pratt & Whitney about the potential for lowering the cost of the company's F135 power plant in the next production lot of Joint Strike Fighters, according to senior industry officials. Like the F-35 prime contractor Lockheed Martin, Pratt will also be bound to a fixed-price incentive fee contract for low-rate, initial production Lot-4 engines, according to Bennett Croswell, the company's vice president of the F135 program. Pratt's goal is to build an...