A HAL HTT 40 basic training aircraft used by the Indian Air Force. Credit: Hindustan Aeronautics Limited (HAL).

India-based Hindustan Aeronautics Limited (HAL) has successfully commenced the spin testing phase of its Hindustan Turbo Trainer 40 (HTT 40) basic training aircraft.

Developed for use by the Indian Air Force (IAF), the HTT 40 trainer began its maiden spin testing with two turn spin and subsequent recovery using the appropriate controls.

Go deeper with GlobalData

Data Insights

The gold standard of business intelligence.

Find out more

Related Company Profiles

View all

Stall testing on the aircraft has already been completed by the company.

Carried out by the company’s Aircraft Research and Design Centre, spin testing was conducted following an extensive wind tunnel testing and mathematical model analyses of the basic training jet in order to fully test the spin characteristics of the aircraft.

HAL Engineering and Research & Development director Arup Chatterjee said that the preliminary services qualitative requirements test points have been successfully met during the test.

“The HTT 40 will be primarily deployed for basic flight training, aerobatics, instrument flying and close-formation flights, while performing other secondary missions.”

The spin completion is the last stage that needs to be completed before the aircraft enters into service with the IAF.

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.

In August 2013, the project started its detailed design with internal funding, having reached the spin tests phase in just over five years.

The Indian Defence Acquisition Council (DAC) has granted approval for the acquisition of 70 units of the basic trainer aircraft from HAL.

Production clearance for the aircraft is expected to be attained by the end of this year.

Designed to replace the IAF’s ageing fleet of HAL HPT-32 Deepak training aircraft, the HTT 40 will be primarily deployed for basic flight training, aerobatics, instrument flying and close-formation flights, while performing other secondary missions such as navigation and night-flying.

The HAL aircraft carried out its first flight in May 2016.