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GS3 · Defence

Scramjet combustor runs 1,000 seconds

1 min readMissiles
Battle IAS current affairs title card: Scramjet combustor runs 1,000 seconds (GS3 · Defence, 25 April 2025)

What happened

  • DRDL ran an actively cooled scramjet combustor for over 1,000 seconds on 25 April 2025 [PIB].

Background

  • Earlier test was 120 seconds in January [PIB].

Why it matters

  • A long scramjet run is the step toward hypersonic cruise missiles.

How to use this in Mains

GS-III Security; indigenisation of technology

  1. As per PIB (2025-04-25): DRDL ran an actively cooled scramjet combustor for over 1,000 seconds on 25 April 2025.
  2. A long scramjet run is the step toward hypersonic cruise missiles.
Quotable data point

DRDL ran an actively cooled scramjet combustor for over 1,000 seconds on 25 April 2025.

PIB: Scramjet test, 25 Apr 2025

Exam angle

UPSC

Prelims: scramjet.

Practice MCQs

Original practice questions (not PYQs).

Practice · UPSC

Test duration

Answer (b) & explanation

PIB.

Official source: PIB: Scramjet test, 25 Apr 2025

facts from cited sources only; faculty review pending