ERASR – Extended Range Anti-Submarine Rocket
Exam Level: UPSC / Defence Awareness | Content Type: Notes + MCQs
🚢 1️⃣ Overview of ERASR Trials
From June 23 to July 7, 2025, the Indian Navy conducted successful user trials of the Extended Range Anti-Submarine Rocket (ERASR) from INS Kavaratti, a Kamorta-class anti-submarine warfare corvette.
✅ 17 rockets were test-fired under operational conditions validating range, fuze performance, and warhead effectiveness.
🔬 2️⃣ Development & Manufacturing
| Category | Details |
|---|---|
| Lead Developer | ARDE (Pune), DRDO |
| Supporting Labs | HEMRL & NSTL |
| Manufacturing Partners | Bharat Dynamics Ltd (Hyderabad), Solar Defence & Aerospace Ltd (Nagpur) |
| Induction Status | Expected soon after successful trials |
⚙️ 3️⃣ Key Technical Features
- ✔️ Twin-Rocket Motor Configuration
- ✔️ Electronic Time Fuze for precise detonation
- ✔️ Capable of engaging short & long-range submerged threats
🎯 Twin-motor system provides operational flexibility against varying submarine ranges.
🏛️ 4️⃣ Strategic Significance
- Boosts Indian Navy’s anti-submarine warfare capability.
- Strengthens indigenous defence manufacturing ecosystem.
- Enhances maritime security in the Indian Ocean Region.
Defence Minister Rajnath Singh termed ERASR a major boost to the Navy’s striking power.
📝 5️⃣ Multiple-Choice Questions (MCQs)
Question 1:
Where were ERASR trials conducted?
A) INS Visakhapatnam
B) INS Kavaratti
C) INS Vikrant
D) INS Kolkata
Answer: B
Explanation: Trials were conducted from INS Kavaratti.
Where were ERASR trials conducted?
A) INS Visakhapatnam
B) INS Kavaratti
C) INS Vikrant
D) INS Kolkata
Answer: B
Explanation: Trials were conducted from INS Kavaratti.
Question 2:
Which DRDO lab led ERASR development?
A) ADE
B) ARDE
C) DLRL
D) DMRL
Answer: B
Explanation: ARDE (Pune) led development with HEMRL and NSTL support.
Which DRDO lab led ERASR development?
A) ADE
B) ARDE
C) DLRL
D) DMRL
Answer: B
Explanation: ARDE (Pune) led development with HEMRL and NSTL support.
Question 3:
What precision feature does ERASR include?
A) GPS navigation
B) Acoustic homing
C) Electronic Time Fuze
D) Infrared seeker
Answer: C
Explanation: Electronic Time Fuze ensures accurate detonation timing.
What precision feature does ERASR include?
A) GPS navigation
B) Acoustic homing
C) Electronic Time Fuze
D) Infrared seeker
Answer: C
Explanation: Electronic Time Fuze ensures accurate detonation timing.
Question 4:
How many rockets were tested?
A) 10
B) 15
C) 17
D) 20
Answer: C
Explanation: A total of 17 rockets were successfully tested.
How many rockets were tested?
A) 10
B) 15
C) 17
D) 20
Answer: C
Explanation: A total of 17 rockets were successfully tested.
Question 5:
Advantage of twin-rocket motor configuration?
A) Cost reduction
B) Aerial launch capability
C) Flexibility for short & long range targets
D) Satellite compatibility
Answer: C
Explanation: Enables engagement of both short and long-range underwater threats.
Advantage of twin-rocket motor configuration?
A) Cost reduction
B) Aerial launch capability
C) Flexibility for short & long range targets
D) Satellite compatibility
Answer: C
Explanation: Enables engagement of both short and long-range underwater threats.
