United States, Sept. 8 -- Aviation Systems Engineering Co., Lexington Park, Maryland, is awarded a $288,823,141 cost-plus-fixed-fee, firm-fixed-price and cost reimbursable, indefinite-delivery/indefinite-quantity contract to procure administrative, business, engineering, information technology, sustainment, operations, and program management across all life cycle phases necessary to ensure continuity of services in support of legacy and new components, subsystems, systems, sensors, and mission avionics for naval air platforms to include engineering, management, technical labor, materials and equipment needed for technology assessment and development, fabrication, prototyping, laboratory and field experiments, ship and air exercises, test, i...