Hellenic Aerospace Industry
Hellenic Aerospace Industry is Greece's state-owned aerospace and defense company, specializing in aircraft and engine maintenance, aerostructures, military electronics, unmanned systems, and defense-industry partnerships.
Last updated August 26, 2026
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Overview
Hellenic Aerospace Industry, commonly abbreviated HAI and known in Greek as Elliniki Aeroporiki Viomichania, is Greece's principal aerospace and defense-industrial company. It was established by the Greek State in 1975 during the government of Constantine Karamanlis. The original purpose was to consolidate aircraft-related construction and industrial activity in a new state enterprise, while the historic KEA facility could concentrate more heavily on maintenance. HAI subsequently developed a large industrial complex at Tanagra, approximately 65 kilometers northwest of Athens, covering about 200,000 square meters and employing thousands of people at various points in its history. The company operates across military and civil aerospace support. Its principal activities include depot-level maintenance, repair, overhaul, modification, upgrade, and logistics support for aircraft and aircraft engines; manufacture and assembly of aerostructures; avionics and electronics maintenance; development and production of military electronics, optronic systems, telecommunications equipment, radar-related systems, and weapon-system components; and research and development in unmanned aviation, composite materials, satellite applications, and related technologies. HAI has maintained capabilities for fixed-wing and rotary-wing aircraft, including platforms operated by the Hellenic Air Force, Hellenic Navy, and international customers. A major part of HAI's business has been industrial cooperation with larger aerospace companies. Its reported partners and customers have included Boeing, Airbus, Alenia, Lockheed Martin, Raytheon, EADS, Dassault Aviation, Saab, RUAG, Aermacchi, Rolls-Royce, Honeywell Aerospace, Snecma, Pratt & Whitney, and General Electric. These relationships have involved subcontract manufacture, aircraft modernization, engine support, co-development, and co-production. The company's participation in the F-16 co-production program from 1996 broadened its role in military-aircraft manufacturing, while later work connected HAI with the Boeing 787, Airbus A380, Eurofighter, nEUROn, M-346, and other international programs. HAI has also pursued indigenous development. Its best-known original aviation project is the Pegasus unmanned aerial vehicle, developed with the Hellenic Air Force Research and Development Center. The first Pegasus flew in 1982, and the design was later upgraded to Pegasus II. The company has additionally worked on the Telamon jet-powered unmanned aircraft, military communications and encryption equipment, night-vision systems, fire-control systems, surveillance equipment, and other defense technologies. In January 2025, Greece's defense minister stated that HAI's Centaur counter-unmanned-aircraft system was approaching serial production. Its maintenance portfolio has included military and civil aircraft, engines, components, accessories, avionics, structural systems, and precision equipment. HAI has held or reported approvals and certifications associated with civil-aircraft component and engine repair, C-130 maintenance, King Air support, P-3 support, and maintenance of engines such as the Rolls-Royce T56, Honeywell T53, and Snecma ATAR. The company has also described capabilities in corrosion control, aircraft painting, crash-damage repair, structural rework, aircraft checks, engine life-extension studies, special-tool design, testing, and repair-scheme development. HAI's state ownership has made it strategically important to Greek defense policy but has also exposed it to public-sector financial and restructuring pressures. In 2010 it was identified among Greek state-owned enterprises requiring restructuring because of a primary revenue deficit. Despite those pressures, the company remains an active industrial and maintenance organization and a central participant in Greece's aerospace and defense ecosystem.
History
Hellenic Aerospace Industry was created by the Greek State in 1975 as a national aerospace-industrial enterprise. Its formation followed a policy decision associated with the government of Constantine Karamanlis to separate aircraft construction and related industrial work from the maintenance-centered role of the historic KEA factory. A substantial new complex was built at Tanagra, north of Athens. The site became the company's main industrial base and was designed to support aircraft manufacturing, maintenance, engineering, electronics, and research activities. HAI's early development included indigenous unmanned-aircraft research. In 1979, the company began work on the E1-79 Pegasus UAV in cooperation with the Hellenic Air Force Research and Development Center, known as KETA. The prototype first flew in 1982. The system later entered operational service with the Hellenic Air Force and was upgraded to the Pegasus II standard in 2005. HAI also worked with Northrop on the Telamon, a jet-powered UAV derived from the Chuckar III concept. Although introduced in 1986, the Telamon did not proceed to production because its projected cost was considered excessive for Greek requirements. During the 1990s, HAI explored several collaborative and indigenous aircraft projects. In 1990 it worked with DASA of Germany, Alenia of Italy, and Per Udsen of Denmark on an Advanced Amphibious Aircraft concept. The aircraft was not produced. Other proposed projects, including an internally designed trainer for the Hellenic Air Force and additional joint developments, also failed to reach production, with financing being a recurring constraint. These efforts nevertheless expanded the company's engineering experience and international relationships. HAI entered the F-16 Fighting Falcon co-production program with Lockheed Martin in 1996. This relationship provided access to aerospace manufacturing work and supported expansion of HAI's aerostructures facilities. Around the same period, the company increased its involvement in multinational defense and aerospace programs. In 2000 it joined the Next Generation Fighter, or nEUROn-related experimental unmanned combat-air-vehicle effort, with responsibilities including portions of the rear fuselage, tail pipe, integration bench, engine-related work, air-to-air missile integration, and communications systems. HAI also participated in the Eurotrainer development and co-production effort with Dassault Aviation, EADS, Saab, RUAG, and Alenia. The company continued forming program relationships in the 2000s. In January 2006 it signed a memorandum of understanding with Aermacchi concerning possible co-production of the M-346 advanced trainer. In March 2007 it joined the EADS Eurofighter program and undertook work on a composite fuselage component known as the Vary Cowl. The same month, HAI signed a memorandum with Russia's Irkut concerning potential co-production of the Beriev Be-200 firefighting aircraft if Greece selected the aircraft. In April 2007, HAI reached an agreement with the United States Air Force for structural and electronic upgrades to US F-16 aircraft based in Europe. The program began in November 2007, and the first upgraded aircraft was delivered in March 2008. HAI's civil-aerospace manufacturing work also expanded during this period. From 2005 it was involved in the design and manufacture of a component surrounding the cargo door of Boeing's 787 Dreamliner. It also participated in the TANGO project for a prototype composite internal wing-structure component for the Airbus A380. These projects reflected HAI's effort to use its composite-material and aerostructure capabilities in the global commercial-aircraft supply chain. The company's industrial structure has been organized into centers covering aircraft maintenance, engine maintenance, electronics, aerostructures, and engineering and research. Aircraft support has included platforms such as the C-130, F-4, F-16, Mirage aircraft, UH-1 and Bell helicopters, T-2 trainers, CL-215 aircraft, and P-3 Orion maritime-patrol aircraft. Engine facilities have supported turbofan, turbojet, turboshaft, turboprop, and reciprocating engines, including the Snecma ATAR, Rolls-Royce/Allison T56, and Honeywell T53 families. Electronics operations have covered avionics, instruments, radars, communications, weapon systems, testing, and assembly. HAI has pursued quality and aerospace certification through systems including ISO standards, TickIT-related quality requirements, and EN/AS 9100. It has also held approvals associated with civil component repair and with maintenance of selected aircraft and engines. Partnerships and industrial participation have extended to programs such as IRIS-T, Stinger, ESSM, Galileo, ARTES, European research projects, and satellite applications. In 2010, the company was identified as a state-owned enterprise requiring restructuring because of a primary revenue deficit, illustrating the financial pressures affecting its public ownership model. More recently, HAI has continued developing defense technologies, including the Centaur counter-UAV system, which Greek officials said in January 2025 was nearing serial production.
- 2025
Centaur counter-UAV system nearing serial production
[1]The Greek defense minister stated that HAI's Centaur counter-UAV system was expected to become ready for serial production soon.
- 2010
State-owned-enterprise restructuring concerns
[1]HAI was identified among Greek state-owned enterprises requiring restructuring because of a primary revenue deficit.
- 2008
First upgraded US F-16 delivered
[1]The first aircraft under HAI's US Air Force F-16 structural and electronic upgrade program was delivered.
- 2007
Eurofighter, Beriev, and US F-16 upgrade agreements
[1]HAI joined the Eurofighter program, signed a memorandum concerning the Beriev Be-200, and agreed to upgrade US F-16 aircraft based in Europe.
- 2006
M-346 cooperation memorandum
[1]HAI signed a memorandum with Aermacchi concerning possible M-346 advanced-trainer co-production.
- 2005
Pegasus II upgrade and Boeing 787 work
[1]The Pegasus design was upgraded to Pegasus II, while HAI became involved in composite aerostructure work for the Boeing 787.
- 2000
Participation in next-generation unmanned combat aircraft and Eurotrainer programs
[1]HAI joined the Next Generation Fighter effort and the Eurotrainer development and co-production program.
- 1996
Participation in F-16 co-production
[1]HAI joined Lockheed Martin's F-16 Fighting Falcon co-production program.
- 1986
Telamon UAV introduced
[1]HAI and Northrop developed the jet-powered Telamon UAV, but the project did not proceed to production.
- 1982
First Pegasus flight
[1]The Pegasus unmanned aircraft completed its first flight and later entered Hellenic Air Force service.
Products and positioning
A state-owned Greek aerospace and defense-industrial partner combining aircraft and engine MRO, aerostructure manufacturing, military electronics, indigenous unmanned-system development, and participation in multinational aerospace programs.
Unmanned aerial vehicles · 1982
Pegasus and Pegasus II
The Pegasus is HAI's best-known indigenous unmanned aircraft program. Developed with the Hellenic Air Force Research and Development Center, the E1-79 prototype first flew in 1982. The platform entered Hellenic Air Force service and was subsequently modernized as Pegasus II. It represents one of Greece's longest-running indigenous aerospace-development programs.
Counter-unmanned-aircraft system
Centaur
Centaur is a HAI-developed counter-UAV system intended to detect and counter unmanned aircraft threats. Greek officials stated in January 2025 that the system was approaching readiness for serial production. Detailed specifications and production quantities are not established in the supplied sources.
Aerospace maintenance
Aircraft MRO services
HAI provides maintenance, repair, overhaul, modification, upgrade, structural repair, painting, corrosion control, component support, avionics work, and logistics services for military and civil fixed-wing and rotary-wing aircraft. Reported supported platforms include the C-130, F-4, F-16, Mirage aircraft, UH-1 and Bell helicopters, T-2, CL-215, and P-3 Orion.
Engine maintenance
Aircraft-engine MRO
HAI's engine facilities support repair, overhaul, modification, testing, inspection, repair-scheme development, special-tool design, and life-extension studies for multiple engine types. Reported authorized-support capabilities include the Snecma ATAR, Rolls-Royce/Allison T56, and Honeywell T53 families.
Aircraft structures and composites
Aerostructures
HAI manufactures and assembles medium and large aerostructure subassemblies, engine structures, modification kits, and composite components. Its capabilities include engineering analysis, CNC machining, sheet-metal forming, chemical processing, surface treatment, welding, tube bending, assembly, and production planning.
Defense electronics
Military electronics and systems
The electronics business covers aircraft avionics and instruments, ground and weapon-system electronics, radar-related equipment, telecommunications, air-to-air missile work, manufacturing, assembly, testing, and engineering support. HAI has also developed military switchboards, digital messaging equipment, fire-control systems, night-vision equipment, surveillance devices, and encryption technologies.
Brand decisions
2025
Centaur counter-UAV system advanced toward serial productionProduct launchBackground
Greece has sought domestic capabilities to address the increasing military significance of unmanned aircraft and counter-UAV technologies.
Action taken
HAI developed the Centaur counter-UAV system, and the defense minister announced that it would soon be ready for serial production.
Aftermath
The announcement positioned Centaur as a prospective indigenous defense product, although the supplied material does not establish its production start date, procurement volume, or operational deployment.
2010
State-enterprise restructuring identified as necessaryStrategyBackground
HAI was listed among Greek state-owned enterprises facing restructuring requirements after reporting a primary revenue deficit.
Action taken
The company was identified for restructuring within the broader Greek public-enterprise reform context. The supplied source does not specify a completed restructuring plan or its final outcome.
Aftermath
HAI continued operating as a state-owned aerospace and defense company, but detailed financial outcomes are not provided in the supplied material.
Sources1 sources
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