India’s Hindustan Aeronautics Restricted (HAL) has awarded a contract to Honeywell to fabricate and ship 88 TPE331-12B Turboprop engines/kits. The engines/kits will energy HAL’s Turbo Coach-40 (HTT-40) plane. The contract is estimated to exceed $100m and also will embrace upkeep and assist companies. The newest signing marks a big milestone within the execution of HAL’s current contract with the Indian Air Pressure (IAF) to supply 70 HTT-40 plane. The corporate acquired a request for proposal (RFP) from the IAF in February final yr. The deal was signed between Honeywell Protection & House OE Gross sales senior director Eric Walters and HAL government director (E & IMGT) B Krishna Kumar, in presence of HAL chairman and managing director (CMD) R Madhavan.

Walters stated: “The TPE331-12 household of engines has confirmed itself in operations everywhere in the world, and we have now dedicated to assist and ship engines in addition to kits inside stipulated schedule to satisfy necessities of IAF. Honeywell is dedicated to supporting the export of HTT-40 plane in coming years together with different engine programmes that are presently on radar.”


Madhavan stated: “HAL has efficiently developed HTT-40 to deal with primary coaching necessities of IAF. There may be potential requirement of 70 plane. The contract for a similar with IAF is below superior stage of approval.”

Hindustan Aeronautics Restricted Turbo Coach-40 (HTT-40) Fundamental Coach Plane

In response to HAL, the TPE331-12B engines have been supporting the HTT-40 prototypes since 2014 and the 2 firms at the moment are working intently to assist the export potential of the HTT-40. Honeywell’s TPE331-12B is a single-shaft turboprop engine, which contains two energy generators, an integral inlet and gearbox, a stage centrifugal compressor, a three-stage axial turbine, and a turbine exhaust diffuser. It additionally provides digital engine management (EEC) for dependable energy and operational traits. The Honeywell TPE331 (navy designation: T76) is a turboprop engine. It was initially designed within the Fifties by Garrett AiResearch, and produced since 1999 by Honeywell Aerospace.

The HAL HTT-40 (Hindustan Turbo Coach-40) is an Indian coaching plane designed and constructed by HAL. It’ll substitute the Indian Air Pressure’s retired HPT-32 Deepak as a primary coach. The HTT-40 is an all-metal, tandem seat plane powered by a 1,100 hp (820 kW) turboprop engine. On 28 February 2015, it was reported that the Indian protection ministry had chosen 68 HAL HTT-40 trainers and 38 Pilatus trainers. On 21 June 2015, HAL selected the Honeywell Garrett TPE331-12B turboprop to energy the coach. The deal was signed on 27 July 2022, for 88 engines, kits, upkeep and assist price greater than $100 million. Honeywell will work with HAL to increase assist for exports. HAL rolled out the primary prototype on 2 February 2016 and it first flew on 31 Might 2016.