The Indian Prime Minister Shri Narendra Modi unveiled HTT-40, an indigenous trainer aircraft designed and developed by Hindustan Aeronautics Limited (HAL), at the India Pavilion during 12th DefExpo in Gandhinagar, Gujarat on October 19, 2022. Raksha Mantri Shri Rajnath Singh, Chief Minister of Gujarat Shri Bhupendrabhai Patel were among those present on the occasion. The aircraft has state-of-the-art contemporary systems and has been designed with pilot-friendly features. With over 60 per cent in-house parts and collaboration of private industry, it is a shining example of the vision of ‘Aatmanirbhar Bharat’. The HTT-40 has completed all systems tests, all PSQR performances, hot weather, sea level and cross wind trials and user assisted technical trials.
The HAL HTT-40 (Hindustan Turbo Trainer-40) is an Indian training aircraft designed and built by Hindustan Aeronautics Limited (HAL). It will replace the Indian Air Force’s retired HPT-32 Deepak as a basic trainer. The HAL HTT-40 demonstrated rain water resistance. Provisional clearance for airworthiness of the aircraft is received from Centre for Military Airworthiness and Certification (CEMILAC). The HTT-40 would be used for basic flight training, aerobatics, instrument flying and close formation flights whereas its secondary roles would include navigation and night flying. It is a testament to the cutting-edge technology designed to meet primary training requirements of the Indian defence services.
The HTT-40 is an all-metal, tandem seat aircraft powered by a 1,100 hp (820 kW) turboprop engine. In early 2012 the company forecast building 106 examples. Built around a meticulously-tested turbo-prop engine, the aircraft is equipped with the latest avionics, an air-conditioned cabin and ejection seats. It boasts of unique features like running change-over of pilots, hot-refuelling and short-turnaround time. All the tests required for certification were completed in record six years from the first flight. The HTT-40 made its first public introduction flight on 17 June 2016, with Defence Minister Manohar Parrikar in attendance at the HAL airport in Bangalore. On 19 May 2017, the second prototype had its first flight.
In July 2019 it was anticipated that initial operational clearance would be reached by end of 2019 and that, after placement of an order, the first aircraft would be delivered to the Indian Air Force within a year. In January 2020, HAL forecast that limited series production is to start in year 2020-21. On 11 August 2020, the Defence Acquisition Council approved procuring 106 HTT-40s for the Indian Air Force. At Aero India 2021, HAL received request for proposal from the IAF for 70 HTT40s with an option for 38 more. Production will take place at the Bangalore and Nashik manufacturing plants. By August 2021, the HTT-40 had completed its spin certification flight testing.