LIGHT COMBAT HELICOPTER of India?

dabrownguy

New Member
I was browsing some sites and I came across areo india 2003 and found out that they plan to make a LCH.
It's not the ALH,it's not the LCA. Previously known as the LAH (Light attack helicopter), it is not to be confused with the currently known LAH (Light attack Helicopter ) Lancer,which is a derivative of the Cheetah helicopter. HAL's recently rechristened Light Combat Helicopter ( LCH ) is a dedicated combat and gunship variant of the existing Advanced Light Helicopter(Dhruv/ALH), being developed to a draft IAF and IA requirement.

A full scale mockup of the LCH,on display at the HAL pavilion at Aero-India-2003. It was unveiled by Defence minister George Fernandes on the first day of the show. Note the FLIR turret which is slaved to a HMS.

The project evolved from an original requirement to provide a dedicated combat helicopter to operate at extremely high altitudes for COIN operations,after the limitations and the inability of the Mi-25 and Mi-35 gunships of the IAF to operate at that altitude,was realised during the 1999 Kargil war. Though the concept was publically revealed at Aero-India 1998, HAL confirms that as of Feb. 2003, the design is still far from finalization and that the type is at least 5 years away from induction,despite some promises made by the former to have the aircraft available for evaluation by December 2001. Many of the onboard systems are yet to be decided though the aircraft has already been configured for integration.

Development however received a boost when IAF ACM S Krishnaswamy,committed to grant Rs 300 crore (Rs 3 billion) to HAL for designing and developing the Light Combat Helicopter in the next 24 months. HAL has now promised to deliver the LCH by the the next Aero-India show in 2005. Rumors of Israeli participation in the project have proven to be unsubstantiated.


Various close in views of the Light Combat Helicopter's sighting and armament stations.

The LCH belongs to the 5. 5 ton class,with a narrow fuselage accommodating a pilot and a gunner/co-pilot in tandem configuartion. The cockpit and windsheild have armour protection. Maximum possible commonality with the Dhruv/ALH is maintained to minimise development time frame and cost. The LCH incorporates a number of stealth features such as low visual signature, reduced aural cross section / Low Radar Cross Section and a low IR signature as well as crashworthy landing gear for better survivability. The Dhruv's current external structure composite percentage of 67% is expected to be improved upon.

Primary electro-optical sensors including the FLIR/CCD camera and laser range finder/designator will be installed inside a nose mounted Gimballed Payload assembly(GPA) which is similar to the one on the Nishant UAV. IRDE(DRDO) has already developed a nose mounted gyro stabilised sighting system for the ALH, comprising of a high performance thermal imager and Laser Range Finder with a 4 km detection range of a NATO Tank target. Known as the Heliborne-thermal imaging system(HELITIS), it provides a stabilization accuracy of 30 microradians and is intended for target recognition and engagement.

LEFT: A 3-view Engineering drawing diagram of the Light combat Helicopter ( Pic courtesy : HAL helicopter division,Bangalore )
RIGHT: An inside peek into the MFD equipped rear cockpit of the LCH on display at Aero India.


The LCH will feature a full glass cockpit for both the pilot and gunner,as well as eye level displays. The Multifunction displays pictured above are the products of DataSol, a private venture specializing in avionics. The 9'' x 11'' 'smart' MFDs are ruggeddized and Mil qualified for airborne operations. They feature high luminance and contrast with optional night vision and optical customization as well as an MIL-STD-1553B/Arinc429/RS422 interface with exclusive software libraries and OGL support.

The LCH will have two engines with a dual redundant analogue flight control system (AFCS), Electrical, hydraulic, communication and navigation systems. Crashworthy features are incorporated into the fuel system (tank), bottom structure and fixed type tricycle landing-gear. The dynamic system (Main rotor and Tail rotor system, Integrated Dynamic system), Powerplant, Transmission, Electrical and Hydraulic systems, AFCS and Avionics are at present, common with the ALH WSI. RWR aerials, Missile approach warning systems (MAWS) and the counter-measure dispenser system (CMDS) have already been incorporated into the design and await final integration with an undecided self defense suite. HAL mentions that the candidates for the latter are under current evaluation.


--------------------------------------------------------------------------------

SPECIFICATION

Type/Role Light Combat Helicopter Twin tandem seat, light attack helicopter
Roles :
Air defense against UAVs
Air defense against slow moving aircraft
Escort to special heli-borne operations
Destruction of Enemy Air Defence (DEAD)
Offensive employment in urban warfare
Counter surface force and COIN operations
Support of Combat SAR operations
Anti-tank and Anti-vehicle roles
Scout duties

Performance Max. AUW 5500 kg
Max. Cruise at SL 260 km/h
VNE 330 km/h
Max. Operating altitude 6500 m
Ferry range with interm.load 700 km
Dimensions Max. height 5300 mm
Main rotor diameter 13300 mm
Max. Length 16000 mm
Wing Span 3550 mm
Tail rotor diameter 2054 mm
Armament 20 mm gun
Air to surface missiles
Air-to-Air missiles
Unguided rockets
Iron bombs,Cluster bomb units,Grenade launchers
Anti-radiation missiles
-------------------------------------------------------------------------------------
ANy commments?


source
 

webmaster

Troll Hunter
Staff member
Another pic from the Defencetalk.com



dabrownguy, would you mind UPLOADING the pictures that you are LINKING to our Gallery?
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
Interesting design, it looks like there is some heavy russian and british influence in there.

Does anyone know whether the cockpit protection is a carbon fibre/polymer type bucket, RHA or titanium?
 

The Watcher

New Member
dabrownguy said:
The LCH will feature a full glass cockpit for both the pilot and gunner,as well as eye level displays. The Multifunction displays pictured above are the products of DataSol, a private venture specializing in avionics. The 9'' x 11'' 'smart' MFDs are ruggeddized and Mil qualified for airborne operations. They feature high luminance and contrast with optional night vision and optical customization as well as an MIL-STD-1553B/Arinc429/RS422 interface with exclusive software libraries and OGL support.
Doesn't say anything about cockpit other than that small piece. GF, which type of cockpit protection is prefered in gunships like this one?
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
bit of a guess here, but I would have thought that in a light gunship there would be a push towards carbon fibre and laminates.

the more weight you add to an already small airframe will reduce the ability to "churn and turn" with necessary speed. Titanium armour is always good as its a known quantity (and India would be able to get titanium through the russians), but it will impact on maximum elevation, acceleration etc...

on a lighter frame platform, there should probably be some more consideration to ECM as well as natural speed to exit a hostile environment.

after all, a lot of the strikes against US helos have been things like RPG's - which can't be jammed and require a watchful crew to maintain distance from a likely shooting spot etc...

Gremlin29 could probably add something more to this...
 

Gremlin29

Super Moderator
Staff member
Verified Defense Pro
I agree with Titanium as filling the bill. Being a "light" aircraft I would guess armor to be limited to pilot seats and fuel tanks. Armor is one of those things that can quickly compromise the design with a weight penalty that takes all the performance out of the machine. If you look at the old Mi 24 Hind it's a case study on how much armor you can put on a helicopter and keep it flying, well sort of flying. :)

The helicopters biggest threats are bullets and the man fired heat seekers both of which are nearly impossible to evade.
 

dabrownguy

New Member
  • Thread Starter Thread Starter
  • #7
Trust me when I say that light is just a trend. I think this thing is supposed take on the role of taking out tanks. if thats true i want india to purchas thousands of these.
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
At a doctrine level the LAH, MAH take on a similar role to the Cavalry, so they are actually a form of a flying light armoured unit.
 

Gremlin29

Super Moderator
Staff member
Verified Defense Pro
I wouldn't classify this as a light helicopter, the MGWT puts it into the medium range actually. Since light composites are a standard in aircraft design I don't see heavy gunships ever coming into existance again ala the Mi 24 which aside from being ultra cool looking is a highly impractical gunship platform in this century.
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
Classic design though the Hinds... The Australian Govt has got one in storage after stopping a mercerary arms transfer. V poor quality build, but one of the few platforms that looks menacing even on the ground.
 

Gremlin29

Super Moderator
Staff member
Verified Defense Pro
I agree the Hind is cool looking, in fact it is the coolest looking attack helo IMHO. I've examined them in person and they are impressive, the forward half of the fuselage is built like a boiler with huge round head rivets holding it together. The pilots station is layed out quite well but the gunners station,...well if your over 5 feet tall you will be quite cramped. Same goes for the cargo station, it's made for munchkins or pygmies! They are super cool to see in flight, with gear retracted and chugging along at cruise. Like all things Russian they are good solid designs with quality control problems.
 

dabrownguy

New Member
  • Thread Starter Thread Starter
  • #12
India's hele inventory.

[Admin Edit: The thread is about LIGHT COMBAT HELICOPTER of India? NOT India's Helicopter fleet.

Please share those pics by opening a new thread dedicated to Indian Heli Fleet.

Thanks, ENJOY!!!!
 

Gremlin29

Super Moderator
Staff member
Verified Defense Pro
The first problem current helicopters have operating at high altitudes is their inability to generate power. Turbines have to suck air for combustion, if your not sucking enough air (it becomes thinner the higher you go) the engine will underspeed (it's like driving a car up a steep hill in a high gear) This limits the amount of torgue that can be applied to the rotor system, and torque is power. To compensate for the loss of power available the aircraft max gross weight will be reduced. The next hurdle is loss of tail rotor effectiveness. The tail rotor overcomes the torque in the rotor blades which is trying to yaw the aircraft in the opposite direction of the rotation of the main rotor blades. This is more of problem for some designs, and less of a problem for others. Finally the rotor system itself becomes less effective at higher density altitudes making them increasingly difficult to control. I've flown Blackhawks as high as 16,000 feet to take advantage of winds aloft on ferry flights, nothing like getting a 340 knot ground speed in a helicopter!. At that altitudue helicopters really wallow, controls are sloppy and the collective lever is raised to nearly the travel limits which Never occurs at low altitudes. Finally every design will reach a density altitude whereby the rotor system is no longer capable of producing meaningful lift. These condtions all become a serious problem when your trying to accomplish a landing because you will most likely be terminating your landing approach to a hover, and hovering requires more power than forward flight. Finally, service ceiling is a misleading term, in avaiation service ceiling is defined as the point in which the aircraft is no longer capable of climbing at or above 500 feet per minute, which is a standard rate of climb during instrument flight. For short hops to resupply mountain bases exceeding the service ceiling is not that big of an issue, your flights will be short anyway so trading fuel weight for cargo weight becomes SOP.
 

umair

Peace Enforcer
Holy! Look at the size of this thing :eek
Does anybody here know that the capacity of the Mi-26 is similar to that of the C130 Herc!
Reminds me PAA also operates about 24 Mi 24 hinds.Will post there pics in a new thread either in Army or Mil Images forun.Just wait for a few days :smokingc:
 

Oqaab

New Member
umair said:
Reminds me PAA also operates about 24 Mi 24 hinds.Will post there pics in a new thread either in Army or Mil Images forun.Just wait for a few days :smokingc:
24 Hinds ??? I think there are only one or two Hinds in PA which were captured during afghan war. I dont think Russia sold Hinds to PAKISTAN.
 
Top