Military Aviation

Bangalore, India: In a major milestone for India’s indigenous defence manufacturing, Hindustan Aeronautics Limited (HAL) successfully carried out the maiden flight of the first series-production HTT-40 basic trainer aircraft (tail number TH-4001) from its Bengaluru facility on Friday. The aircraft, built under the “Aatmanirbhar Bharat” initiative, marks the transition of the HTT-40 programme from development to full-scale production. According to HAL, the flight lasted approximately 40 minutes and validated the aircraft’s performance parameters, flight controls, and avionics systems. “This achievement reflects our capability to design, develop, test, and now produce a world-class basic trainer entirely within India,” said HAL Chairman and Managing Director C.B. Ananthakrishnan. “The HTT-40 will soon play a key role in shaping the next generation of Indian Air Force pilots.” The HTT-40 (Hindustan Turbo Trainer-40) is a tandem-seat, fully aerobatic turboprop aircraft designed for ab-initio pilot training. The trainer can perform a range of operations including basic flying, aerobatics, instrument training, and night sorties. Unlike earlier prototypes, the newly flown TH-4001 represents a production-standard version that will lead HAL’s delivery commitments to the Indian Air Force (IAF). The aircraft is powered by a Honeywell TPE331-12B turboprop engine and features a modern glass cockpit, zero-zero ejection seats, hot refuelling capability, and advanced avionics such as VOR/ILS, TACAN, and IFF. HAL officials confirmed that the indigenous content of the HTT-40 currently stands at around 56%, with plans to push it beyond 60% as local suppliers scale up production. The Indian Air Force has placed an order for 70 HTT-40 aircraft, valued at approximately ₹6,800 crore. Deliveries were initially targeted for late 2025 but were delayed due to supply chain constraints, particularly the delayed shipment of Honeywell engines. HAL now expects the first batch of production aircraft to be delivered to the IAF by February 2026, after completion of flight certification and quality assurance trials. A second production line at HAL’s Nashik division has also been inaugurated to accelerate output and meet the IAF’s requirements. The HTT-40 will replace the ageing HPT-32 Deepak trainers that were grounded in 2009 following safety issues. With its modern systems and improved safety standards, the aircraft will serve as the backbone of the IAF’s basic flight training programme, bridging a crucial capability gap in pilot induction.

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