FORM 10-K

5 Textron Systems Segment Textron Systems’ product lines consist of unmanned systems, marine and land systems, and simulation, training and other defense and aviation mission support products and services. Textron Systems is a supplier to the defense, aerospace and general aviation markets, and represents 13%, 13% and 11% of our total revenues in 2017, 2016 and 2015, respectively. This segment sells its products to U.S. Government customers and to customers outside the U.S. through foreign military sales sponsored by the U.S. Government and directly through commercial sales channels. Textron Systems competes on the basis of technology, contract performance, price, product quality and reliability, product support and reputation. Revenues by Textron Systems’ product lines were as follows: (In millions) 2017 2016 2015 Unmanned Systems $ 714 $ 763 $ 686 Marine and Land Systems 470 294 188 Simulation, Training and Other 656 699 646 Total revenues $ 1,840 $ 1,756 $ 1,520 Unmanned Systems Our Unmanned Systems product line includes the offerings of the Unmanned Systems and Support Solutions businesses. The Unmanned Systems business has designed, manufactured and fielded combat-proven unmanned aircraft systems for more than 25 years. This business’s products include the U.S. Army’s premier tactical unmanned aircraft system, the Shadow, which has surpassed one million flight hours since its introduction, and the Aerosonde Small Unmanned Aircraft System, a multi-mission capable unmanned aircraft system that has amassed more than 200,000 flight hours in commercial and military operations around the world. In addition, its unmanned aircraft and interoperable command and control technologies provide critical situational awareness and actionable intelligence for users worldwide. Our Support Solutions business provides logistical support for various unmanned systems as well as training and supply chain services to government and commercial customers worldwide. Marine and Land Systems Our Marine and Land Systems product line includes advanced marine craft, armored vehicles, turrets and related subsystems, in service with U.S. and international militaries, special operations forces, police forces and civilian entities. Marine and Land Systems’ primary U.S. Government program is for the development and production of the U.S. Navy’s next generation Landing Craft Air Cushion as part of the Ship-to-Shore Connector program. Simulation, Training and Other Our Simulation, Training and Other product line includes products and services from five businesses: TRU Simulation + Training, Textron Airborne Solutions, Electronic Systems, Lycoming, and Weapons and Sensors. TRU Simulation + Training designs, develops, manufactures, installs, and provides maintenance of advanced flight training courseware and devices, including full flight simulators, for both rotary- and fixed-wing aircraft for commercial airlines, aircraft original equipment manufacturers (OEMs), flight training centers and training organizations worldwide. Through its training centers, TRU Simulation + Training provides initial type-rating and recurrency training for pilots, as well as maintenance training in its Aviation Maintenance Training Academy. Textron Airborne Solutions, which includes Airborne Tactical Advantage Company, focuses on live military air-to-air and air-to-ship training and support services for U.S. Navy, Marine and Air Force pilots. Electronic Systems provides high technology test equipment, electronic warfare test and training solutions and intelligence software solutions for U.S. and international defense, intelligence and law enforcement communities. Lycoming specializes in the engineering, manufacture, service and support of piston aircraft engines for the general aviation and remotely piloted aircraft markets. Weapons and Sensors offers advanced precision guided weapons systems, airborne and ground- based sensors and surveillance systems, and protection systems for the defense and aerospace industries.