HTT-40 (Hindustan Turbo Trainer-40) is a new basic training aircraft being developed by Hindustan Aeronautics Limited (HAL) for the Indian Air Force (IAF). The new aircraft will replace the ageing fleet of HAL HPT-32 Deepak trainers that are in service with the IAF.
The aircraft will be primarily used for basic flight training, aerobatics, instrument flying and close-formation flights, whereas its secondary roles will include navigation and night-flying.
The HTT-40 trainer is currently in the design phase and is expected to take maiden flight in late 2015.
The HTT-40 project was conceptualised by HAL to fulfil the IAF's requirement of 181 trainer aircraft. Due to the HTT-40's development delays, the air force placed an order in May 2012 for 75 Pilatus PC-7 Mk II turboprop trainers to meet its urgent operational requirements.
The Indian Ministry of Defence chose to procure 38 Pilatus trainers to replace its old trainer aircraft fleet in February 2015, while the remaining 68 aircraft will be sourced from HAL.
HAL completed works on ground test air-frame and also produced several air-frame structures for the first aircraft by mid-2015. The aircraft is projected to enter production by 2018. The serial production will start at HAL's transport aircraft division (TAD) in Kanpur, India.