SPR vs TDG

Spirit Aerosystems Holdings Inc.

Spirit AeroSystems Holdings, Inc. designs and manufactures commercial aerostructures worldwide. It operates through three segments: Fuselage Systems, Propulsion Systems, and Wing Systems. The Fuselage Systems segment develops, produces, and markets forward, mid, and rear fuselage sections and systems primarily to aircraft original equipment manufacturers (OEMs); and other structure components of the fuselage, such as floor beams. The Propulsion Systems segment offers nacelles, including thrust reversers; struts/pylons; and related engine structural components primarily to aircraft or engine OEMs; and related spares, as well as maintenance, repair, and overhaul services. The Wing Systems provides wings and wing components, such as flight control surfaces; and other miscellaneous structural parts primarily to aircraft OEMs. The company was formerly known as Mid-Western Aircraft Systems Holdings, Inc. Spirit AeroSystems Holdings, Inc. was founded in 1927 and is headquartered in Wichita, Kansas.

Transdigm Group Incorporated

TransDigm Group Incorporated designs, produces, and supplies aircraft components in the United States and internationally. Its Power & Control segment offers mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, databus and power controls, sensor products, switches and relay panels, hoists, winches and lifting devices, and cargo loading and handling systems. This segment serves engine and power system and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies, and repair depots. The company's Airframe segment provides engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, cockpit security components and systems, cockpit displays, aircraft audio systems, lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, thermal protection and insulation products, lighting and control technology, and parachutes. This segment serves airframe manufacturers, cabin system and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies, and repair depots. Its Non-aviation segment offers headsets for high-noise, medium-noise, and dismounted applications; seat belts and safety restraints for ground transportation applications; hydraulic/electromechanical actuators and fuel valves for land based gas turbines; refueling systems for heavy equipment used in mining, construction, and other industries; and turbine controls for the energy and oil and gas markets. This segment serves off-road vehicle and subsystem suppliers, child restraint system suppliers, and satellite and space system suppliers; and manufacturers of heavy equipment. TransDigm Group Incorporated was founded in 1993 and is based in Cleveland, Ohio.