IAF and Defence Affairs Questions for AFCAT

IAF Structure and Commands

The Indian Air Force is divided into seven operational and functional commands, each headed by an Air Marshal. The Western Air Command (HQ Delhi) is the largest and most operationally active. The Air Force has a three-tier rank structure: Officers, Junior Commissioned Officers, and Airmen. The Chief of Air Staff (CAS) is the professional head, holding the rank of Air Chief Marshal.

• 7 Commands: Western (Delhi), Eastern (Shillong), Southern (Thiruvananthapuram), South-Western (Gandhinagar), Central (Allahabad), Maintenance (Nagpur), Training (Bengaluru)
• Chief of Air Staff rank: Air Chief Marshal (4 stars)
• IAF motto: Nabha Sprisham Deeptham — Touch the sky with glory (from Bhagavad Gita)
• IAF Establishment Day: 8 October 1932
• Integrated Theatre Commands are being reorganised — a major ongoing reform as of 2024
• Air Defence Command and Maritime Theatre Command are under planning/implementation

IAF Aircraft Fleet

The IAF operates a mix of Russian, French, and indigenous aircraft. Knowing the role of each aircraft — fighter, transport, helicopter, trainer — is critical. AFCAT frequently asks which aircraft performs which role, and which aircraft was recently inducted or retired.

• Frontline fighters: Rafale (French, inducted 2020), Su-30 MKI (Russian, backbone of IAF), MiG-29, Mirage 2000
• Light Combat Aircraft: Tejas (indigenous, HAL-built, Mark-1A being inducted 2024-25)
• Trainer aircraft: Hawk AJT (Advanced Jet Trainer), HTT-40 (indigenous basic trainer)
• Transport aircraft: C-17 Globemaster III (heavy lift), C-130J Super Hercules (special ops), AN-32 (medium)
• Helicopters: Apache AH-64E (attack), Chinook CH-47F (heavy lift), Mi-17 V5 (utility)
• MiG-21 fleet being phased out — historic aircraft, India's longest-serving jet fighter

Missiles and Air Defence Systems

Missile systems are heavily tested in AFCAT. You must know the category (surface-to-air, air-to-air, cruise), origin (indigenous vs imported), and operating agency. The S-400 acquisition from Russia was a landmark deal and appears repeatedly in recent papers.

• S-400 Triumf: Russian surface-to-air missile system, long-range air defence, induction began 2021-22
• Akash: indigenous SAM (Surface-to-Air Missile), developed by DRDO, deployed by IAF and Army
• BrahMos: Indo-Russian supersonic cruise missile, fastest cruise missile in the world (~Mach 2.8-3)
• Astra: indigenous beyond-visual-range air-to-air missile (BVRAAM) for IAF fighters
• MRSAM (Medium Range SAM): jointly developed by DRDO and Israel Aerospace Industries
• Python-5 and Derby: Israeli AAMs integrated on Tejas and other aircraft

Major Defence Exercises

Joint and bilateral military exercises show India's strategic partnerships and interoperability. AFCAT tests exercise names, countries involved, and the service branch (Air, Naval, Army). Remember the naming pattern — India always contributes part of the name.

• Garuda: India-France Air Force exercise (Garuda = India's bird, France partner)
• Cope India: India-USA Air Force exercise
• Tasman Saber / Malabar: India-USA-Japan (Malabar is Naval but often clubbed in questions)
• Ex Desert Eagle: India-UAE Air Force exercise
• Ex Shakti: India-France Army exercise (not Air but frequently confused)
• Tarkash: India-France Special Forces (know to avoid confusion with Air exercises)

Key Defence Acquisitions and Schemes

Make in India in defence is a major policy focus. AFCAT often asks about indigenous programmes, DRDO achievements, and recent government defence deals. The distinction between DRDO, HAL, BEL, and ISRO roles is important.

• DRDO: Defence Research and Development Organisation — develops weapons and systems
• HAL (Hindustan Aeronautics Limited): manufactures aircraft — Tejas, HTT-40, ALH Dhruv
• ALH Dhruv: Advanced Light Helicopter, fully indigenous, used by all three services and Coast Guard
• AMCA (Advanced Medium Combat Aircraft): 5th generation stealth fighter under development by HAL/DRDO
• Defence Acquisition Procedure (DAP) 2020: replaced DPP, promotes Atmanirbhar Bharat in defence
• iDEX (Innovations for Defence Excellence): startup ecosystem for defence innovation

Historical Milestones and Honours

AFCAT tests key IAF firsts, war contributions, and gallantry awards specific to the Air Force. IAF played decisive roles in 1965, 1971 (decisive air superiority), Kargil 1999, and has conducted relief operations globally.

• 1971 War: IAF destroyed Pakistani airfields on first night — Operation Safed Sagar (Kargil 1999 was the air op name)
• Operation Safed Sagar: IAF operations during Kargil War 1999, first combat use of Mi-17 armed helicopters
• First CAS: Air Marshal Sir Thomas Elmhirst (British); first Indian CAS: Air Marshal Subroto Mukerjee (1954)
• Param Vir Chakra connection: Flying Officer Nirmal Jit Singh Sekhon — only IAF recipient of PVC (1971 War)
• Operation Rahat: IAF humanitarian operation during 2013 Uttarakhand floods
• Abhinandan Varthaman: Wing Commander, shot down Pakistani F-16 in Feb 2019, awarded Vir Chakra

• Confusing Army exercises with Air Force exercises — Ex Shakti is Army (India-France), Garuda is Air Force (India-France). Same partner, different service.
• Mixing up S-400 (Russian, surface-to-air, defensive) with BrahMos (Indo-Russian, cruise, offensive) — both are Russia-linked but totally different systems.
• Thinking MiG-21 is still in full service — IAF has been phasing it out; always check the latest status before exam.
• Forgetting that AMCA is still under development and NOT inducted — questions test awareness of what is operational vs what is planned.
• Confusing IAF motto language — it is Sanskrit (from Gita), not Hindi. Full phrase: Nabha Sprisham Deeptham.

• 7 Commands memory trick — WE SS CMT: Western, Eastern, Southern, South-Western, Central, Maintenance, Training. Think 'WE SS CoMbaT'.
• BrahMos = BRAHmaputra + MOSkva river — the Indo-Russian joint name tells you its origin instantly.
• For IAF firsts — remember Sekhon: S for Solo defender, S for Srinagar, S for only airman to get PVC. Triple S.
• Aircraft roles grouped: FAST fighters (Rafale, Su-30, Tejas), BIG movers (C-17, Chinook), ATTACK rotors (Apache). FBA — Fast, Big, Attack.

• AFCAT typically has 2-3 questions purely on aircraft names and roles — focus on Rafale, Tejas, Apache, and C-17 as these appear most in recent papers (2021-2024).
• One question almost always comes on recent defence exercises — note the year of the latest Garuda and Cope India exercise before your exam date.
• Questions on IAF historical facts often use tricky phrasing like 'first Indian CAS' vs 'first CAS of IAF' — these are different people, so read carefully.
• Missile questions focus on category and origin — make a quick 2-column table (indigenous vs imported, SAM vs cruise vs AAM) for last-minute revision.
• Abhinandan Varthaman and Operation Safed Sagar are recurring PYQ favourites — know the rank, award, aircraft (MiG-21 Bison), and year (2019 and 1999 respectively).