HAL Delivers First Three HTT-40 Trainers to IAF After Months of Engine Delays

Hindustan Aeronautics Limited (HAL) has finally delivered three Indian-built HTT-40 basic trainers to the Indian Air Force, after months of delays due to late Honeywell TPE331-12B engines. The ₹6,838-crore order covers 70 aircraft and is a significant milestone in the country's effort to build its own trainer jets.

The HTT-40 is designed for ab-initio flying, where cadets learn basic flight skills before moving on to more advanced trainers. It features a tandem-seat turboprop design with a single engine capable of 1,100 shaft horsepower, held back to 950 horsepower to prevent overwhelming beginners. The aircraft has a top speed of 450 kmph and can climb to 6,000 metres.

Compared to the imported Pilatus PC-7 Mk II, the HTT-40 is more powerful, with over 60% Indian content and locally supported production. HAL plans to build 67 remaining aircraft in India, with Honeywell supplying 16 engines directly under a $100-million contract. The technology-transfer arrangement will enable HAL to build engines domestically, reducing reliance on foreign suppliers.