Final Preparation is underway for the fourth series production Light Combat Aircraft, Tejas-SP4 to make its first flight in next few days in the month of February.
HAL is planning to carry out its first flight before AeroIndia 2017 and in next few days, HAL is planning to carry out low-speed taxi trials (LSTT) followed by the high-speed taxi trials (HSTT).
IAF formed the first squadron of an indigenously developed fighter aircraft last year with Tejas-SP1 and SP2, which was later joined by Tejas-SP3 by end of 2016.
