AIR vs HEI

AAR Corp.

AAR Corp. provides products and services to commercial aviation, government, and defense markets worldwide. The Aviation Services segment offers aftermarket support and services; inventory management and distribution services; and maintenance, repair, and overhaul, as well as engineering services. This segment also sells and leases new, overhauled, and repaired engine and airframe parts, and components; and provides inventory and repair programs, warranty claim management, and outsourcing programs for engine and airframe parts and components, as well as performance-based supply chain logistics programs in support of the U.S. department of defense and foreign governments. In addition, it offers airframe inspection, maintenance, repair and overhaul, painting, line maintenance, airframe modification, structural repair, avionic and installation, exterior and interior refurbishment, and engineering and support services; and repairs and overhauls components, landing gears, wheels, and brakes. The Expeditionary Services segment provides products and services supporting the movement of equipment and personnel by the U.S. and foreign governments, and non-governmental organizations. This segment also designs, manufactures, and repairs transportation pallets, and various containers and shelters, as well as composite materials for commercial, business, and military aircraft; and provides engineering, design, and system integration services for command and control systems. The company serves domestic and foreign passenger airlines; domestic and foreign cargo airlines; regional and commuter airlines; business and general aviation operators; original equipment manufacturers; aircraft leasing companies; aftermarket aviation support companies; and domestic and foreign military customers. It primarily markets and sells products and services through its employees and foreign sales representatives. AAR Corp. was founded in 1951 and is headquartered in Wood Dale, Illinois.

Heico Corporation

HEICO Corporation, through its subsidiaries, designs, manufactures, and sells aerospace, defense, and electronic related products and services in the United States and internationally. The company's Flight Support Group segment provides jet engine and aircraft component replacement parts; thermal insulation blankets and parts; renewable/reusable insulation systems; and specialty components. This segment also distributes hydraulic, pneumatic, structural, interconnect, mechanical, and electro-mechanical components for the commercial, regional, and general aviation markets; and offers repair and overhaul services for jet engine and aircraft component parts, avionics, instruments, composites, and flight surfaces of commercial aircraft, as well as for avionics and navigation systems, subcomponents, and other instruments utilized on military aircraft. Its Electronic Technologies Group segment provides electro-optical infrared simulation and test equipment; electro-optical laser products; electro-optical, microwave, and other power equipment; electromagnetic and radio interference shielding and suppression filters; high-speed interface products; high voltage interconnection devices; high voltage advanced power electronics; power conversion products; and underwater locator beacons and emergency locator transmission beacons. This segment also offers traveling wave tube amplifiers and microwave power modules; three-dimensional microelectronic and stacked memory products; harsh environment connectivity products and custom molded cable assemblies; radio frequency and microwave amplifiers, transmitters, and receivers; communications and electronic intercept receivers and tuners; self-sealing auxiliary fuel systems; active antenna systems; and nuclear radiation detectors. The company serves customers primarily in the aviation, defense, space, medical, telecommunications, and electronics industries. HEICO Corporation was founded in 1957 and is headquartered in Hollywood, Florida.