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The '''HAL HTT-40''' is an Indian [[Trainer (aircraft)|training aircraft]], designed and built by [[Hindustan Aeronautics Limited]] (HAL). It will replace the [[Indian Air Force]]'s retired [[HPT-32 Deepak]] as a basic trainer.<ref>[http://indiadefenceonline.com/1146/hal-offers-new-basic-trainer-to-air-force HAL Offers New Basic Trainer to Air Force]  {{webarchive |url=https://web.archive.org/web/20101217003650/http://indiadefenceonline.com/1146/hal-offers-new-basic-trainer-to-air-force |date=December 17, 2010 }}</ref><ref name="HALoutline">{{cite web|url = http://www.hal-india.com/futureproducts/products.asp|title = Hal htt-40|access-date = 8 May 2012|last = Hindustan Aeronautics Ltd|author-link = Hindustan Aeronautics Ltd|date = n.d.|archive-url = https://web.archive.org/web/20161222115526/http://www.hal-india.com/futureproducts/products.asp|archive-date = 22 December 2016|url-status = dead|df = dmy-all}}</ref>
The '''HAL HTT-40''' (Hindustan Turbo Trainer-40) is an Indian [[Trainer (aircraft)|training aircraft]] designed and built by [[Hindustan Aeronautics Limited]] (HAL). It will replace the [[Indian Air Force]]'s retired [[HPT-32 Deepak]] as a basic trainer.<ref>{{Cite web|url=http://indiadefenceonline.com/1146/hal-offers-new-basic-trainer-to-air-force|archiveurl=https://web.archive.org/web/20101217003650/http://indiadefenceonline.com/1146/hal-offers-new-basic-trainer-to-air-force|url-status=dead|title=HAL Offers New Basic Trainer to Air Force|archivedate=December 17, 2010}}</ref><ref name="HALoutline">{{cite web|url = http://www.hal-india.com/futureproducts/products.asp|title = Hal htt-40|access-date = 8 May 2012|last = Hindustan Aeronautics Ltd|author-link = Hindustan Aeronautics Ltd|date = n.d.|archive-url = https://web.archive.org/web/20161222115526/http://www.hal-india.com/futureproducts/products.asp|archive-date = 22 December 2016|url-status = dead|df = dmy-all}}</ref>


==Design and development==
==Design and development==
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On 28 February 2015, it was reported that the Indian defense ministry had selected 68 HAL HTT-40 trainers and 38 [[Pilatus Aircraft|Pilatus]] trainers to replace its current trainer fleet, stating that this move was "commercially viable".<ref>{{cite web|url=http://indianexpress.com/article/india/india-others/parrikar-68-basic-trainer-aircraft-to-come-from-hal-38-from-pilatus/|title=Parrikar: 68 basic trainer aircraft to come from HAL, 38 from Pilatus|date=1 March 2015|work=The Indian Express|access-date=1 March 2015}}</ref>
On 28 February 2015, it was reported that the Indian defense ministry had selected 68 HAL HTT-40 trainers and 38 [[Pilatus Aircraft|Pilatus]] trainers to replace its current trainer fleet, stating that this move was "commercially viable".<ref>{{cite web|url=http://indianexpress.com/article/india/india-others/parrikar-68-basic-trainer-aircraft-to-come-from-hal-38-from-pilatus/|title=Parrikar: 68 basic trainer aircraft to come from HAL, 38 from Pilatus|date=1 March 2015|work=The Indian Express|access-date=1 March 2015}}</ref>


On 21 June 2015, HAL chose the [[Honeywell]] [[Garrett TPE331]]-12B turboprop to power the trainer.<ref>{{cite web|url=http://www.defencenews.in/defence-news-internal.aspx?id=2v/9TCFdNvk=|title=HAL Chooses TPE331 for New Indian Basic Trainer}}{{dead link|date=October 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
On 21 June 2015, HAL chose the [[Honeywell]] [[Garrett TPE331]]-12B turboprop to power the trainer.<ref>{{Cite web|url=http://www.defencenews.in/defence-news-internal.aspx?id=2v/9TCFdNvk=|title=HAL Chooses TPE331 for New Indian Basic Trainer}}</ref>


HAL rolled out the first prototype on 2 February 2016<ref>{{cite web|url=http://www.newindianexpress.com/cities/bengaluru/Boost-to-Make-in-India-HAL-Rolls-out-HTT-40-Prototype/2016/02/02/article3257448.ece|title=Boost to Make in India: HAL Rolls-out HTT-40 Prototype|work=The New Indian Express|access-date=2 February 2016}}</ref> and it first flew on 31 May 2016.<ref name="HTT-40’s first flight successful"/>
HAL rolled out the first prototype on 2 February 2016<ref>{{cite web|url=http://www.newindianexpress.com/cities/bengaluru/Boost-to-Make-in-India-HAL-Rolls-out-HTT-40-Prototype/2016/02/02/article3257448.ece|title=Boost to Make in India: HAL Rolls-out HTT-40 Prototype|work=The New Indian Express|access-date=2 February 2016}}</ref> and it first flew on 31 May 2016.<ref name="HTT-40’s first flight successful"/>
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In July 2019 it was anticipated that initial operational clearance would be reached by end of 2019 and that, after placement of an order, the first aircraft would be delivered to the IAF within a year.<ref>{{Cite web|url=https://economictimes.indiatimes.com/news/defence/no-need-to-import-trainer-aircraft-htt-40-to-be-ready-by-december-hal/articleshow/70423760.cms|title=No need to import trainer aircraft, HTT 40 to be ready by December: HAL|first=Manu|last=Pubby|date=July 29, 2019|via=The Economic Times}}</ref> In January 2020, HAL forecast that limited series production is to start in year 2020-21.<ref>{{Cite web|url=https://theprint.in/defence/hal-needs-new-orders-to-prevent-complete-halt-of-production-after-2021-22/348108/|title=HAL needs new orders to prevent complete halt of production after 2021-22|date=January 11, 2020}}</ref> On 11 August 2020, the Defence Acquisition Council approved procuring 106 HTT-40s for the Indian Air Force.<ref>{{Cite web|date=2020-08-11|title=IAF to get Made in India trainer aircraft from HAL; DAC approves proposals worth Rs 8722 crore|url=https://www.financialexpress.com/defence/iaf-to-get-made-in-india-trainer-aircrafts-from-hal-dac-approves-proposals-worth-rs-8722-crore/2052135/|access-date=2020-08-11|website=The Financial Express|language=en-US}}</ref> At [[Aero India]] 2021, HAL received request for proposal from the IAF for 70 HTT40s with an option for 38 more. Production will take place at the Bangalore and Nashik manufacturing plants.<ref>{{Cite web|last=Urs|first=Anil|date=4 February 2021|title=HAL hopes to fly high with CATS Warrior and RUAV drones |url=https://www.thehindubusinessline.com/news/hal-hopes-to-fly-high-with-cats-warrior-and-ruav-drones/article33752827.ece|url-status=live|access-date=2021-03-30|website=Business Line|language=en}}</ref>
In July 2019 it was anticipated that initial operational clearance would be reached by end of 2019 and that, after placement of an order, the first aircraft would be delivered to the IAF within a year.<ref>{{Cite web|url=https://economictimes.indiatimes.com/news/defence/no-need-to-import-trainer-aircraft-htt-40-to-be-ready-by-december-hal/articleshow/70423760.cms|title=No need to import trainer aircraft, HTT 40 to be ready by December: HAL|first=Manu|last=Pubby|date=July 29, 2019|via=The Economic Times}}</ref> In January 2020, HAL forecast that limited series production is to start in year 2020-21.<ref>{{Cite web|url=https://theprint.in/defence/hal-needs-new-orders-to-prevent-complete-halt-of-production-after-2021-22/348108/|title=HAL needs new orders to prevent complete halt of production after 2021-22|date=January 11, 2020}}</ref> On 11 August 2020, the Defence Acquisition Council approved procuring 106 HTT-40s for the Indian Air Force.<ref>{{Cite web|date=2020-08-11|title=IAF to get Made in India trainer aircraft from HAL; DAC approves proposals worth Rs 8722 crore|url=https://www.financialexpress.com/defence/iaf-to-get-made-in-india-trainer-aircrafts-from-hal-dac-approves-proposals-worth-rs-8722-crore/2052135/|access-date=2020-08-11|website=The Financial Express|language=en-US}}</ref> At [[Aero India]] 2021, HAL received request for proposal from the IAF for 70 HTT40s with an option for 38 more. Production will take place at the Bangalore and Nashik manufacturing plants.<ref>{{Cite web|last=Urs|first=Anil|date=4 February 2021|title=HAL hopes to fly high with CATS Warrior and RUAV drones |url=https://www.thehindubusinessline.com/news/hal-hopes-to-fly-high-with-cats-warrior-and-ruav-drones/article33752827.ece|url-status=live|access-date=2021-03-30|website=Business Line|language=en}}</ref>
By August 2021, the HTT-40 had completed its spin certification flight testing.<ref>{{Cite web|url=https://www.airrecognition.com/index.php/news/defense-aviation-news/2021/august/7509-india-htt-40-training-aircraft-ready-for-operational-clearance.html|title=India: HTT-40 training aircraft ready for operational clearance|website=www.airrecognition.com}}</ref>
<!--==Operational history== -->
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==Operators==
==Operators==
{{IND}}
{{IND}}
* [[Indian Air Force]] — 106 on order<ref>{{cite web|title=HAL to sign orders for 73 Advanced Light Helicopters, 106 HTT-40 trainers|url=http://economictimes.indiatimes.com/news/defence/hal-to-sign-orders-for-73-advanced-light-helicopters-106-htt-40-trainers/articleshow/57167815.cms|website=India Economic Times|access-date=15 February 2017|location=Bengaluru|date=15 February 2017}}</ref><ref>{{cite web|title=Army, IAF to soon get 73 choppers, 106 HTT-40 trainers from HAL: CMD|url=https://www.financialexpress.com/industry/army-iaf-to-soon-get-73-choppers-106-htt-40-trainers-from-hal-cmd/553178/|website=India Financial Express|access-date=6 August 2018|location=Bengaluru|date=15 February 2017}}</ref>
* [[Indian Air Force]] — 106 are Planned<ref>{{cite web|title=HAL to sign orders for 73 Advanced Light Helicopters, 106 HTT-40 trainers|url=http://economictimes.indiatimes.com/news/defence/hal-to-sign-orders-for-73-advanced-light-helicopters-106-htt-40-trainers/articleshow/57167815.cms|website=India Economic Times|access-date=15 February 2017|location=Bengaluru|date=15 February 2017}}</ref><ref>{{cite web|title=Army, IAF to soon get 73 choppers, 106 HTT-40 trainers from HAL: CMD|url=https://www.financialexpress.com/industry/army-iaf-to-soon-get-73-choppers-106-htt-40-trainers-from-hal-cmd/553178/|website=India Financial Express|access-date=6 August 2018|location=Bengaluru|date=15 February 2017}}</ref>


==Specifications (HTT-40)==
==Specifications (HTT-40)==
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