India’s LCA Tejas

When the Indian Airforce (IAF) Light Combat Aircraft (LCA) Tejas showcased its capabilities at the prestigious Bahrain International Air Show, all eyes were on it, especially since the Chief of Air Staff of the Pakistan Airforce (CAS PAF) was also in Bahrain for an official visit. The international media was abuzz, waiting with bated breath for the CAS PAF’s assessment of the LCA Tejas. In his frank and candid response, the CAS stated, ‘After witnessing the LCA’s performance, the PAF sees no reason for concern.’ Despite subsequent appearances both domestically and internationally, the LCA Tejas has struggled to gain significant traction. Though India has consistently promoted Tejas for export, potential buyers remain hesitant, perhaps influenced by the fact that only a limited number have been inducted into the IAF’s own fleet.

Initiated in the early 1980s, the LCA project aimed to replace India’s aging Mig-21 fleet. However, its maiden flight did not occur until 2001, nearly two decades later. Given the swift pace of technological advancements worldwide during this period, by the time the LCA took to the skies, it was arguably already behind in terms of modern aviation innovations. It was not until 2021, another two decades later, that the Indian Ministry of Defense repositioned the LCA project. Instead of it solely serving as a replacement for the MiG-21, it was now being seen as part of the broader IAF modernisation plan. This shift in perspective suggests that the LCA project, now over 40 years in the making, requires significant reassessment and technological upgrades to remain relevant and effective.

The Tejas, since its inception, has faced numerous operational and technical challenges. Despite its induction into the IAF around seven years ago, several critical issues continue to overshadow its potential:

Operational Challenges

Serviceability and Availability: The LCA has a notably low serviceability rate. This deficiency means that a significant number of Tejas aircraft are unavailable for both training and operational flying for extended periods. Consequently, this impacts the readiness of the IAF as neither training nor operational benchmarks are consistently met.

Range and Payload Limitations: Structurally, the LCA is a smaller platform with a relatively delicate build. As a result, it possesses restricted range and load carriage capabilities. Its limited fuel capacity necessitates frequent stopovers during extended flights, presenting a tangible operational constraint and potentially exposing the aircraft to more risks in real-world scenarios.

Weapons and Systems: An analysis comparing the LCA Tejas with its contemporaries reveals a gap in the advanced weapons and systems it offers. The absence of state-of-the-art armament and technology compromises its target engagement abilities, which is a critical factor in aerial combat scenarios.

Cost Considerations: When juxtaposed against its capabilities, the LCA Tejas emerges as an expensive investment. Furthermore, the Tejas programme has been plagued by cost overruns. The initially estimated budget for the programme have exceeded by a considerable margin, exacerbating the financial challenges associated with the aircraft. This cost-benefit disparity not only impacts its potential for export due to competitive pricing pressures but also challenges its large-scale domestic induction. Given the financial ramifications domestic and international stakeholders are now deeply wary of committing to or procuring the aircraft at its staggering cost. The viability of the entire programme stands on a knife’s edge! 

In light of these operational problems, while the LCA Tejas represents an ambitious project for India, deeper analysis indicates the need for substantial enhancements to make it a viable, cost-effective competitor in the modern aviation market.

Technical Issues

LCA is also confronted with a host of technical problems; only a few are described below:

Engine Concerns: At the heart of any aircraft is its engine and airframe, setting the foundation for its performance and reliability. Powering the LCA is the GE F404-IN20 engine, which has unfortunately encountered issues such as overheating and flameouts. Not only have these engine troubles caused significant delays in the Tejas programme’s progression, but they have also stoked apprehensions about the aircraft’s overall safety in flight scenarios.

Software and Integration Challenges: The avionics and software of the Tejas have presented their own set of challenges. Specifically, the aircraft has faced difficulties in seamlessly integrating new weapon systems, an aspect crucial for its combat-readiness and adaptability in the evolving landscape of aerial warfare.

Structural Issues: The airframe of the Tejas, a fundamental element determining its durability and longevity, has shown structural shortcomings. Such issues don’t just extend the Tejas programme’s timeline but also cast doubts about the aircraft’s resilience, especially in high-intensity operations.

In short, these technical challenges not only jeopardise the Tejas’ performance but also its credibility as a modern fighter jet in a highly competitive global market.

Conclusion

India needs to indulge in serious retrospection!

LCA Tejas is a complex aircraft, and it is not surprising that it has faced many technical and operational problems since its development. The IAF and HAL are contending with a design concept that is now 45 years old. To put that into perspective, within such a timeframe, most fighter aircraft would typically complete their service life and retire. No wonder then that the longevity and viability of the Tejas has become a point of intense scrutiny. Given this context, is it worthwhile for India to invest in an aging, costly and outmoded project and also expect others in the global defence marketplace to do so? 

Air Vice Marshal Nasser Ul Haq Wyne (Retd) is a Director at the Centre for Aerospace & Security Studies, Islamabad, Pakistan. The article was first published in The Nation. He can be contacted at: [email protected].

Design Credit: Mysha Dua Salman


Share this article

Facebook
Twitter
LinkedIn

Recent Publications

Browse through the list of recent publications.

The US-Israel War on Iran: Objectives, Strategy, and Escalation Management

Zahra Niazi
‘States tend to overestimate themselves or the benefits and swiftness of war, and to underestimate their opponents’ capabilities, intentions, or the costs and duration of war.’ If anything, the 2026 war initiated by the United States and Israel against Iran shall be remembered in the annals of warfare among the most visible manifestations of this dynamic.
The war, immediately preceded by the January mass protests in Iran, did not represent a sudden rupture but rather the continuation of a 47-year-long confrontation and a more intense phase of the June 2025 war.
The US Secretary of War, Pete Hegseth, defined the war’s objectives as being laser-focused: to destroy Iran’s missile capabilities and its security infrastructure, while ensuring that it could never develop nuclear weapons. Beyond these stated objectives, among the priorities on the continuum also lay the objective of regime change, with both President Trump and Prime Minister Netanyahu explicitly calling on the Iranian population to take over the government at the outset of the war.

Read More »

Marka-e-Haq to the Peace Talks: Pakistan’s Middle Power Status

On 7th May 2025, Pakistan’s military forces took the international security community by surprise when it demonstrated operational superiority against its larger belligerent adversary India with its rapid and coordinated response. The Four-Day conflict proved to be a watershed moment for Pakistan, marking its rapid emergence as an important player in the region. In recent years, amidst the ongoing global competition between the United States and China, Islamabad has adopted a position of ’Strategic Balancing,’ where it maintains ties of cooperation with both Beijing and Washington. Deft diplomacy, emphasis on geo-economics, and credible conventional and strategic deterrence have remained the foundational pillars for Pakistan’s ambition as a rising middle power

Read More »

Debunking the S-400 Shield: Lessons from the India-Pakistan Conflict

Air defense has always been a central aspect of warfare. In South Asia, the phenomenon carries immense significance due to compressed reaction times. In this context, one of the most-hyped systems is the Russian-made S-400, touted by New Delhi as a one-stop solution to counter aerial threats from both Pakistan and China.
The 2025 conflict between India and Pakistan marked an important chapter in testing the S-400 technology. The conflict began on May 7, when India attacked what it alleged were terrorist targets in both Pakistani-held Kashmir and Pakistan proper, using drone and missile strikes. The conflict lasted for four days, culminating in a U.S-facilitated ceasefire. However, the brief conflict debunked a lot of the myths regarding the S-400 technology.
First, India claimed that the mobile S-400 would be able to control Pakistan’s airspace. In contrast, Pakistani aircraft continued to operate freely, according to official briefings by the Pakistani military. Although the Pakistan Air Force (PAF) aircraft were in their own airspace, they were still within the air defense range.

Read More »