Aircraft
HAL Chooses TPE331 for New Indian Basic Trainer
But the indigenous HTT-40 program faces competition from the Pilatus PC-7 Mk II, already in service with the Indian Air Force.
The Honeywell TPE331-12B turboprop will power the proposed new basic trainer from HAL.
The Honeywell TPE331-12B turboprop will power the proposed new basic trainer from HAL.

Hindustan Aeronautics (HAL) has chosen the Honeywell TPE331-12B turboprop to power its proposed new basic trainer. The HTT-40 is the delayed indigenous candidate to replace the old HPT-32 piston-engine basic trainer in the Indian Air Force (IAF). After delays in development of the HTT-40, the IAF bought 75 Pilatus PC-7 Mk II turboprops as an interim measure. Those aircraft are now being delivered.