DHRUV
Advanced Light Helicopter (ALH- DHRUV)
Dhruv Advanced Light Helicopter

The indigenously designed and developed Advanced Light Helicopter (ALH-DHRUV) is a twin engine, multi-role, multi-mission new generation helicopter in the 5.5 ton weight class. The basic Helicopter is produced in skid version and wheeled version. Dhruv is “type –Certified” for Military operations by the Centre for Military Airworthiness Certification (CEMILAC) and civil operations by the Directorate General of Civil Aviation (DGCA).

Certification of the utility military variant was completed in 2002 and that of the civil variant was completed in 2004.  The deliveries of production series helicopters commenced from 2001-02 onwards.  A total of 117 Helicopters have been produced by Mar 2011 including 96 for the Indian Armed Forces.  

The major variants of Dhruv are classified as Dhruv Mk I, MK II, MK III & Mk IV. The major features of them are furnished below.
     
VariantPower Plant / Major SystemsRoles

ALH Mk. I

- TM-333-2B2 engine
-  Conventional cockpit instruments

Utility

ALH Mk. II

- TM-333-2B2 engine
-  Integrated Architecture Display system (Glass cockpit)

Utility

ALH Mk.III

- Shakti engine
-  IADS with Digital Moving Map
-  Electronic Warfare Suite
-  Electro Optical pod
-  Counter Measure Dispensing system
-  Infra Red Suppressor
-  Health & Usage Monitoring system

Utility roles of Defence Services suited for high altitude operations

ALH Mk. IV

ALH Mk.III with weapons &
additional systems like..

-  Turret Gun
-  Rocket
-  Air-to-Air Missile
-  Air-to-Ground Missile
-  Helmet Pointing System
-  Data Link
-  Infra Red Jammer
-  Obstacle Avoidance System

Armed variant for Attack, Close Air Support and High altitude operations.

Technical Parameters
Length15.9 m
Width13.2 m
Height4.98 m
MTOW5500 kg
Speed295 Km/h
Range640 km
Endurance3.7 hr
PAX12 + 2

Power Plant 

 

  • TM 333 – 2B2 (For Dhruv Mk-I and Mk-II) & ARDIDEN 1H1 (Shakti) (for Dhruv Mk III & Mk IV).

TM 333 – 2B2 (For Dhruv Mk-I & Mk-II)

  • Max. Power is 801 kW

 

TM 333 - 2B2 SHAKTI
- Dry wt.167.5 kg195 kg
- Max. Power801 kW899 kW
- Specific Fuel Consumption 0.323 kg/kw hr0.300 kg/kw hr
Shakti Engine (For Dhruv Mk-III & Mk-IV)
  • 12 % Higher power than TM 333 2B2 engine
  • Dual centrifugal compressor assembly
  • Single crystal blades
  • Dual channel FADEC
Roles of Dhruv
  • Passenger / Commuter Role
  • VIP Travel
  • Causality Evacuation
  • Under Slung Load
  • Rapid Deployment of Forces
  • Logistic Air Support
  • Search and Rescue
  • Training
Features of Dhruv
  • Composite Hinge less Interchangeable Main Rotor Blades
  • Composite Bearing less Tail Rotor Blades
  • Composite Air Frame
  • Glass Cockpit & AFCS
  • Chaff & Flare Dispenser
  • Helmet Pointing System
  • Health & Usage Monitoring System
  • Digital Video Recording System
  • VOR/ILS/DME
  • EO Pod with FLIR, LRF & LP
  • IR Suppressor
  • FADEC
  • Integrated Self Protection Suite
  • Digital Moving Map
  • On Board Inert Gas Generation System
Orders for Dhruv
HAL Supplied 7 Dhruv to Ecuadorian Air Force during 2009-2012.  Dhruv has also been supplied to Nepal Army & Mauritius Police.  

More than 100 Dhruvs are operating with Indian Defence Forces. HAL is executing an order for 159 Dhruv helicopters from Indian Army & IAF which is under supply.

Dhruv is also being operated by Civil customers such as ONGC, GSI, Government of Jharkhand and para military force (BSF).

More orders for Dhruv expected from Defence, Civil & Export markets.
ALH Sarang
ALH Sarang

Sarang – the ALH (Dhruv) display team of Indian Air force formed in October 2003 with the aim of showcasing professionalism of the Indian Air Force and giant leap by Indian aviation industry. The word sarang means peacock in Sanskrit and the team epitomizes beauty and grace of peacock - the hallmark of its display.

As the word “Sarang” suggests, with the new role of display flying, the team’s display aims to enchant its audience and embodies beauty and grace. The “Sarang” helicopters have been painted in a unique paint scheme which utilizes bright colours with a peacock form embossed on it. The team has carried out numerous displays in India and abroad. The team has displayed its capability at prestigious Air Shows at Aero India, Paris, Farnborough, Berlin, Al-Ain etc.  The team has also performed during various prestigious events such as Air Force Day, National Defence Academy Passing Out Parade and other events of national and international significance.

The team displayed its skill and versatility with single cross, dolphin leap, double cross etc. and weaved beautiful array in the sky. The team continuously strives to upgrade and perform new profiles for each display.