The coach HAL clears the crucial spin test

HTT-40, the basic training device for indigenous manufacturing, passed an important milestone on Friday – its first rotation tests – said Hindustan Aeronautics Ltd.

According to a person familiar with the program, a few more tests should follow before the aircraft can obtain its operational certification, probably in mid-2019.

Approval of the CAD

HAL said it expects a production license for the HTT-40 by the end of the year. The Defense Acquisition Board approved the purchase of 70 basic training devices built by HAL for the Indian Air Force. Once acquired, the HTT-40 will join the 75 trainers Swiss Pilatus PC-7 Mark II already in service.

HAL CMD R. Madhavan congratulated the design and project team, "The successful startup of the spin tests has stimulated HAL and restored [its] credibility in the successful design of a plane worthy of spin. "

At approximately 1330, the test pilots, Capt Gp Capt (retd) K.K.Venugopal, and Capt Gp S. Chaki (retd) flew the aircraft and achieved the feat.

The spin test is the most crucial phase in the development of a safe and airworthy aircraft, according to HAL. Beginning military pilots begin their flying career with a basic trainer, then move on to fighter and transport aircraft.

"It's a big boost [for the team]. We have responded well after two generations, the last one going back to the 1980s for Kiran, "said the associate manager of coaching development.

According to one statement, "HTT-40 has entered the most anticipated phase of the spin test by successfully starting a two-turn rotation and then recovering with the appropriate controls."

Arup Chatterjee, Director (Engg and R & D) stated that the spin test meets the PSQR test criteria or "qualitative requirements of preliminary specifications"; The completion of the spin test is the last milestone to be crossed prior to commissioning the aircraft.

The first spin test has been met five years since HAL started the basic design of the trainer project in August 2013, at its own expense, amounting to about 350 CRFs. It has gone at a vertiginous speed and has already passed the important phase of stall testing.

This development reinforces the morale of the state-owned defense aircraft manufacturer, who has braved the negative sentiment in recent months not to participate in the Rafale jet fighter acquisition program, which is the subject of numerous debates.

HTT-40 had also previously been rejected by the IAF, which had opted for the Pilatus.

Over the last few months, HAL's Aircraft Research and Design Center (ARDC) has conducted numerous wind tunnel tests and analyzed mathematical models to meet the requirements of the spin test. "The whole of the study is being tested during these early moments of spin testing," he said.