DAW 1st December 2025, Mains Answer Writting 2026

DAW 1st December 2025, Mains Answer Writting 2026

Question

How is S-400 air defence system technically superior to any other system presently available in the world? (150 Words, 10 Marks). 

Model Answer

Approach: 

Introduction:  

  • Start by defining the S-400 Triumf, a top-tier long-range SAM system with advanced range, radar, and multi-target capability, greatly boosts India’s air-defence power. 

Body: 

  • Compare S-400 with global systems (Patriot, SAMP/T, HQ-9) on range, target types, missile diversity, engagement capacity, and mobility. 

  • Present why S-400 is technically superior. 

  • More powerful, Better technology, Faster, Fool-proof , Cheaper and More versatile. 

Conclusion: 

  • Reaffirm that S-400 significantly enhances India’s air-defence capability. 

  • Note that further integration, training, and ecosystem strengthening are needed for full effectiveness. 

 Introduction: 

  • The S-400 Triumf, also called “Sudarshana Chakra”, is among the world’s most advanced long-range SAM systems. Developed by Russia’s Almaz-Antey, it stands out for its extended range, multi-layered radar network, and ability to track and engage multiple aerial threats simultaneously. India’s induction of the S-400 air defence system has significantly strengthened its air defence capability, making it one of the technically superior systems globally. 

 Body: S-400 are superior to other missile defence system available in the world as: 

Feature 

S-400 (Russia) 

Patriot (USA)   

SAMP/T (Europe)   

HQ-9 (China) 

Max Range (approx.) 

Up to 400 km.  

Up to 100 km (PAC-3 MSE). 

Up to 120+ km (Aster 30 Block 1NT). 

Up to 200 km (HQ-9B). 

Target Types 

Aircraft, missiles (ballistic & cruise), drones. 

Aircraft, tactical ballistic missiles, cruise missiles. 

Aircraft, cruise missiles, tactical ballistic missiles.  

Aircraft, cruise missiles, tactical ballistic missiles. 

Missile Variety 

Yes (multiple ranges) 

Limited. 

Limited.   

Yes (multiple ranges). 

Mobility 

High. 

High. 

High. 

High. 

Engagement 

High (multiple simultaneous targets). 

Moderate. 

Moderate. 

Moderate. 

Others: why S-400 is technically superior: 

  • More powerful: 

  • It also, it has the capacity to simultaneously engage 36 targets.  

  • It can protect a much larger area, as compared to Iron Dome used by Israel. 

  • Better technology: 

  • The system’s acquisition radars can even detect stealth-protected aircraft by operating in multiple frequency bands to ‘see’ them. 

  • It can protect a much larger area, as compared to Iron Dome used by Israel.  

  • Faster: 

  • S-400 can be deployed in 5 mins, as compared to 25 minutes taken by Patriot.  

  • The highest speed of S-400 at 4.8 km/sec, surpassing Patriot’s 1.38 km/sec. 

  • Fool-proof: 

  • It comes with an electronic counter-countermeasures to thwart any jamming attempts by the enemies. 

  • Cheaper: 

  • It is a fraction of the cost of its western counterparts such as THAAD or patriot. 

  • Innovative features: 

  • S-400 is also capable of engaging other aerial targets, like UAVs etc.  

 Conclusion: 

  • The S-400 greatly boosts India’s air-defence strength, but unlocking its full potential requires better integration, advanced training, and a stronger support ecosystem. In an increasingly contested airspace, true aerial dominance is shaped not just by offensive power but also by cutting-edge radar networks, interceptor systems, and missile batteries-as seen globally with platforms like Iron Dome, Patriot, and Arrow-3.