SF Prep Notes

CSIR-NAL unveils indigenous micro and small gas turbine engines NJ-05, NJ-50 and NJ-100

CSIR-National Aerospace Laboratories unveiled three indigenous gas turbine engines with 5, 50 and 100 kg thrust for drones and compact missiles in New Delhi on 25 August 2026.

Summary

CSIR-National Aerospace Laboratories (CSIR-NAL) unveiled three indigenous micro and small gas turbine engines at the SSB Auditorium, CSIR Headquarters, New Delhi, on 25 August 2026. The engines are the NJ-05 with 5 kg thrust, the NJ-50 with 50 kg thrust and the NJ-100 with 100 kg thrust, meant for tactical UAVs, drone interceptors and compact missile systems. Air Marshal Tejinder Singh, Chief of Integrated Defence Staff to the Chairman Chiefs of Staff Committee (CISC), was the chief guest, along with CSIR Director General Dr N. Kalaiselvi and NAL Director Dr Abhay A. Pashilkar. The team, led by R. Prathapanayaka, credited advances in high-RPM turbomachinery and high-temperature combustion.

Key facts

Date / venue
25 Aug 2026, CSIR HQ, New Delhi
Developer
CSIR-National Aerospace Laboratories
Engines
NJ-05 (5 kg), NJ-50 (50 kg), NJ-100 (100 kg thrust)
Uses
Tactical UAVs, drone interceptors, compact missiles
Chief guest
Air Marshal Tejinder Singh, CISC

Practice MCQs 3 questions

Q1

Which laboratory unveiled the indigenous NJ-05, NJ-50 and NJ-100 gas turbine engines on 25 August 2026?

Show answer

Correct answer: B — CSIR-National Aerospace Laboratories

CSIR-NAL unveiled the three micro and small gas turbine engines at CSIR Headquarters in New Delhi.

Q2 Advanced

What is the thrust class of the NJ-100 engine unveiled by CSIR-NAL in August 2026?

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Correct answer: A — 100 kg

The NJ-05, NJ-50 and NJ-100 have 5 kg, 50 kg and 100 kg thrust respectively.

Q3 Advanced

Consider the following statements about the CSIR-NAL gas turbine engines unveiled in August 2026: 1. They were unveiled at NAL's campus in Bengaluru. 2. The Chief of the Air Staff was the chief guest. Which of the above is/are correct?

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Correct answer: D — Neither 1 nor 2

Both are wrong. The engines were unveiled at CSIR Headquarters in New Delhi, and the chief guest was Air Marshal Tejinder Singh, Chief of Integrated Defence Staff to the Chairman COSC.

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