DRDO's DRDL tests active cooled scramjet subscale combustor for over 1,000 seconds
The Defence Research & Development Laboratory (DRDL), Hyderabad, of DRDO conducted long-duration ground testing of an Active Cooled Scramjet Subscale Combustor for over 1,000 seconds on 25 April 2025.
Summary
The Defence Research & Development Laboratory (DRDL), a Hyderabad-based laboratory of DRDO, conducted long-duration Active Cooled Scramjet Subscale Combustor ground testing for more than 1,000 seconds at the newly built Scramjet Connect Test Facility in Hyderabad on 25 April 2025. The test follows an earlier test of 120 seconds reported in January 2025; with this success the system will soon be ready for full-scale flight-worthy combustor testing. Hypersonic cruise missiles travel at more than five times the speed of sound (over 6,100 km/h) for long durations and are powered by air-breathing engines. Raksha Mantri Rajnath Singh complimented DRDO, industry partners and academia.
Key facts
- Lab
- DRDL, Hyderabad (DRDO)
- Test
- Active Cooled Scramjet Subscale Combustor, over 1,000 seconds
- Facility
- Scramjet Connect Test Facility, Hyderabad
- Earlier test
- 120 seconds, January 2025
- Hypersonic
- More than 5 times the speed of sound (> 6,100 km/h)
Practice MCQs 3 questions
For how long did DRDL ground-test an Active Cooled Scramjet Subscale Combustor on 25 April 2025?
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Correct answer: B — Over 1,000 seconds
DRDL conducted the ground test for more than 1,000 seconds; the earlier test in January 2025 was for 120 seconds.
Which laboratory conducted the long-duration scramjet combustor ground test in Hyderabad on 25 April 2025?
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Correct answer: D — Defence Research & Development Laboratory (DRDL)
The test was conducted by the Defence Research & Development Laboratory (DRDL), a Hyderabad-based DRDO lab.
Consider the following about DRDO's scramjet test of 25 April 2025: 1. Hypersonic cruise missiles travel at more than five times the speed of sound (over 6,100 km/h). 2. The test was conducted at the Scramjet Connect Test Facility in Hyderabad. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as per the Ministry of Defence release.