HAL Tejas

HAL Tejas
Name	Tejas
Caption	Tejas prototype
Type	Multirole light combat aircraft
Manufacturer	Hindustan Aeronautics Limited
First flight	4 January 2001
Introduced	2016
Status	Active

HAL Tejas is a single-engine, delta-wing, multirole light combat aircraft developed for the Indian Air Force and Indian Navy by the Aeronautical Development Agency and produced by Hindustan Aeronautics Limited. Conceived to replace the SEPECAT Jaguar and MiG-21 fleets, Tejas incorporates technologies derived from collaborations with General Electric, Snecma, and domestic programs such as the Light Combat Aircraft (LCA) project and the Kaveri engine initiative. The type has been displayed at airshows like the Paris Air Show and Bengaluru Aero Show, while export interest has involved discussions with countries such as Argentina, Philippines, and Malaysia.

Development

The Tejas program originated in the 1980s under the Aeronautical Development Agency to meet requirements set by the Indian Air Force after studies comparing replacement options like the Dassault Mirage 2000 and the Saab JAS 39 Gripen. Early partnerships involved engine considerations with Rolls-Royce concepts and eventual selection of the General Electric F404 derivative, the GE F404-IN20 and later the GE F414. Structural and avionics work drew on components and consultancy from firms including Snecma, Honeywell, Rafael Advanced Defense Systems, and Thales Group. Development milestones included the first flight in 2001, initial operational clearance from the Directorate General of Aeronautical Quality Assurance, and final operational clearance awarded by the Indian Air Force in 2019 after weapons integration trials with systems from DRDO, Bharat Electronics Limited, and Indian Space Research Organisation.

Design

Tejas features a tailless delta-wing planform influenced by studies from the Aeronautical Development Agency and aerodynamic data from the Hindustan Aeronautics Limited test facilities. The airframe uses composites developed through collaboration with Defence Research and Development Organisation laboratories and private partners, with avionics suites incorporating mission computers from Tata Advanced Systems, radar systems inspired by work with Israel Aerospace Industries and ELTA Systems, and electronic warfare packages linked to Dassault Aviation-era concepts. Flight control is managed by a quadruplex digital fly-by-wire system influenced by research at the National Aerospace Laboratories and integration with displays from Hindustan Aeronautics Limited suppliers. Weapons carriage accommodates munitions such as the Astra beyond-visual-range missile, the R-73 short-range missile, and precision-guided munitions from Bharat Dynamics Limited, while sensor fusion integrates data from navigation systems using satellite inputs similar to IRNSS architectures.

Operational history

Operational induction began with squadrons of the Indian Air Force at bases like Lohegaon Air Force Station and Ambala Air Force Station, replacing older types such as the MiG-21 Bison. Tejas aircraft participated in exercises with foreign forces including bilateral drills with units from the United States Air Force, Royal Air Force, French Air and Space Force, and the Russian Aerospace Forces. The type has undertaken weapons trials over ranges administered by the Defence Research and Development Organisation and Indian Navy carrier suitability tests referencing procedures used by INS Vikramaditya operations and Hindustan Aeronautics Limited sea-based trials. Fleet upgrades and squadron expansions have been overseen by the Ministry of Defence (India) procurement and maintenance chains including spares contracts with Bharat Electronics Limited and avionics support from Tata Advanced Systems.

Variants

- Trainer variant: Two-seat Tejas Trainer developed for conversion training by Indian Air Force training units and maintained by Hindustan Aeronautics Limited. - Tejas Mk1: Initial production standard with avionics and engine packages standardized with GE Aviation support and weapons integration including Astra. - Tejas Mk1A: Mid-life upgrade emphasizing AESA radar from ELTA Systems, improved electronic warfare suites from Rafael Advanced Defense Systems-linked contractors, and structural enhancements coordinated with DRDO laboratories. - Tejas Mk2 (Medium Weight Fighter): Proposed larger variant with higher-thrust GE F414 integration, enlarged airframe, and features drawing on studies with Aeronautical Development Agency and international partners such as Snecma and Rolls-Royce suppliers. - Naval variant: Carrier-capable variant adapted for STOBAR operations with arrester and strengthened undercarriage following trials akin to those conducted for Mig-29K and Sea Harrier adaptations.

Specifications

General characteristics: - Crew: 1 (single-seat) or 2 (trainer) as per Indian Air Force conversion rules. - Length, wingspan, height: Dimensions evolved across Mk1 and Mk2 designs per Aeronautical Development Agency configuration documents. - Powerplant: Single General Electric F404 derivative in early series; planned General Electric F414 for heavier variants. Performance: - Maximum speed, range, service ceiling: Performance targets comparable to light fighters such as the Saab JAS 39 Gripen and early Mig-29 derivatives, with combat radius and ferry range validated in trials at Pokhran and other Indian test ranges.

Operators

- Indian Air Force — front-line squadrons equipped with Tejas Mk1 and Trainer variants at bases including Lohegaon Air Force Station and Ambala Air Force Station. - Potential export discussions reported with nations such as Argentina, Philippines, and Malaysia, subject to procurement decisions by respective defence ministries and parliamentarian approvals.

Category:Indian fighter aircraft Category:Light combat aircraft