Directionally Solidified Gas Generator (GG) Turbine blades were also developed for the engine indigenously.

[1][5][6] In the Annual Report 2020-21 of Hindustan Aeronautics Limited, it is revealed that HTSE 1200 achieved 100% speed run on core engine.

HAL Engine Division at Koraput in association with Defence Metallurgical Research Laboratory (DMRL) has developed Single Crystal Blade samples.

[2] HAL has completed High altitude cold weather trials of Jet Mode Engine at Leh and High altitude hot weather trials of Jet Mode Engine at Leh, South Pullu and Khardung-La.

The core has achieved 100% RPM milestone and completed sea-level trials while limited series production is to start soon.