The Indian Air Force has taken delivery of its first three indigenous HTT-40 basic trainer aircraft from Hindustan Aeronautics Limited, though their introduction to rookie pilot training is delayed by nearly two years while instructors undergo preparation and procedure development.

The Indian Air Force has taken delivery of its first three indigenous HTT-40 basic trainer aircraft from Hindustan Aeronautics Limited, though their introduction to rookie pilot training is delayed by nearly two years while instructors undergo preparation and procedure development.

The Indian Air Force has taken delivery of its first three indigenous HTT-40 basic trainer aircraft from Hindustan Aeronautics Limited, though their introduction to rookie pilot training is delayed by nearly two years while instructors undergo preparation and procedure development.

The Indian Air Force (IAF) has received the first three indigenous HTT-40 basic trainer aircraft from Hindustan Aeronautics Limited (HAL), under a Rs 6,828.36-crore contract for 70 such jets. However, the aircraft are unlikely to be used for training rookie pilots for nearly two years.

The IAF first plans to build a fleet of around 25 to 30 HTT-40 aircraft and train enough flying instructors before introducing the trainers into its regular pilot training programme.

According to a Hindustan Times report, the initial batch of aircraft will be stationed at the Flying Instructors' School in Tambaram, near Chennai, where instructors will undergo training on the new platform.

These instructors will eventually be responsible for teaching newly inducted pilots to fly the HTT-40.

"The HTT-40 trainers will initially be stationed at the Flying Instructors' School in Tambaram near Chennai to train instructors who will eventually teach rookie pilots how to fly the aircraft," Hindustan Times quoted a source as saying.

Another official said the instructors would also be responsible for developing standard operating procedures for the HTT-40. They will prepare the training syllabus and establish proficiency standards that trainee pilots must achieve.

These preparations are necessary before the aircraft can be introduced into the IAF's basic flying training programme.

The IAF signed a contract in 2023 to procure 70 HTT-40 basic trainer aircraft from HAL for Rs 6,828.36 crore. The indigenous aircraft are intended to address the shortage of basic trainers used for training new pilots.

The delivery of the HTT-40 aircraft has also faced delays due to supply chain problems involving their engines. The aircraft are powered by Honeywell's TPE331-12B turboprop engines, which are supplied from the US. Disruptions in the supply of these engines had affected the aircraft's production and delivery schedule. However, engine supplies have now stabilised, allowing HAL to increase production.

According to the report, HAL can manufacture up to 20 HTT-40 aircraft annually at its production facilities in Bengaluru and Nashik.

Role of HTT-40 in IAF

The HTT-40 is an indigenous turboprop basic trainer designed to train newly inducted pilots before they progress to more advanced stages of flying. The aircraft has been developed to offer good handling characteristics at low speeds, an important requirement for basic flight training.

It is a fully aerobatic aircraft featuring a tandem-seat configuration, allowing an instructor and trainee to sit one behind the other.

The HTT-40 will be used for basic flight training, aerobatics, instrument flying and close-formation flying. It can also undertake navigation and night-flying training as secondary roles.

The aircraft is equipped with modern avionics, an air-conditioned cockpit and zero-zero ejection seats. Other features include hot refuelling, which allows the aircraft to be refuelled while its engine is running, and a running change-over facility for pilots.

These capabilities, along with a short turnaround time, are designed to improve training efficiency.

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