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SOURCE: RAUNAK KUNDE / NEWS BEAT / IDRW.ORG

Hindustan Aeronautics Limited (HAL), India’s premier aerospace and defense company, has embarked on a critical project to develop a next-generation 4.2kN class turbojet engine. This upgraded version of the PTAE-7 engine, known as the PTAE-7G, marks a significant step forward for Indian aerospace capabilities and is poised to play a crucial role in two key programs: the CATS Warrior Loyal Wingman unmanned jet and the CATS Hunter Air-Launched Cruise Missile (ALCM).

The PTAE-7, originally developed in the 1980s, was a single-spool turbojet engine generating 3.43kN of thrust. While reliable, it lacked the advanced features and performance demanded by modern military applications. The PTAE-7G addresses these limitations by incorporating several key upgrades:

  • New turbine blades: Enhanced for improved efficiency and higher thrust output.
  • Digital Electronic Fuel Control System (DEFC): Provides precise fuel management and optimizes engine performance.
  • Hardened compressor sections: Increased durability and resistance to foreign object damage.
  • Full Authority Digital Engine Control (FADEC): Enables advanced engine management and automated control for optimal performance and safety.

These advancements translate into a more powerful and efficient engine, with the PTAE-7G generating a 23% increase in thrust compared to its predecessor. This translates to improved range, payload capacity, and overall performance for the aircraft it powers.

The PTAE-7G will play a pivotal role in two of HAL’s most ambitious projects:

  • CATS Warrior Loyal Wingman: This unmanned aerial vehicle (UAV) is designed to operate alongside manned fighter jets, providing reconnaissance, surveillance, and attack capabilities. The twin-engine configuration of the CATS Warrior will utilize the PTAE-7G for its propulsion, enabling high speeds and maneuverability.
  • CATS Hunter ALCM: This air-launched cruise missile is intended for long-range precision strikes. The PTAE-7G’s compact size and high thrust-to-weight ratio make it ideal for powering the CATS Hunter, providing the necessary range and speed for effective strike missions.

HAL aims to complete the certification process for the PTAE-7G within the next 12 months, showcasing the company’s commitment to rapid development and deployment of advanced technologies. This ambitious timeline, if achieved, will be a testament to HAL’s engineering expertise and its ability to deliver critical technologies on time.

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