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HAL LCH| Updates and Discussions

Deploying a helicopter in Ladakh, an area with one of the rarest atmosphere doesn’t seem like a PR stunt but a litmus test for a helicopter don’t you think?
This was done at the IAF's request, the VCAS and his team probably wanted to know first hand how the LCH will perform hence he got a familiarization flight with the HAL TP at the controls.
The trials were done way back in 2015 itself and the mechanical underpinning is identical to the Dhruv which is already the best utility heli in the fleet for "Super High Altitude" Areas.
The key things mentioned are underlined in my above post too.
 
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Some great details about the LCH from one of it's Test Pilots at HAL, Grp Cpt Hari Nair. Posted on an Indian defence forum.

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The LCH will be one of the most survivable gunships, given the fact that landing gear, seats and the structure, are all designed to help absorb impact loads and protect the pilots.


The LCH is designed to meet a specific percentile of crashworthiness, as defined in Mil Standard .
Towards this:
- The landing gear oleos have a two-stage design. The first stage caters for normal operations. The second stage compression caters for the crash loads.
- The lower portion of the fuselage has a section that is designed to crush, to attenuate the crash loads, after the oleos have absorbed the initial impact and the fuselage contacts the surface.
- The seats for the Pilot and Weapon Systems Operator are crash-worthy. These seats are mounted on rails and stroke downwards to further reduce the acceleration. The seat loads are absorbed by its Variable Load Energy Absorbers. The idea being to finally reduce the 'g' load on the spine to below 14.
So, its essentially a three-stage approach - using the oleos, the crush portions and the seat for energy attenuation in the event of a crash with vertical velocities more than 2000 feet per minute.

- When up close, its very evident that the oleos and attachment points are beefy - they remind me in size, of those on the Mi-17: which is a 13 tonne helicopter!
- The testing of the LCH landing gear was done on a rig that was used to check out the Navy LCA's landing gear. However the rig had to be modified, since the LCH landing gear had to be dropped from a even higher height. The landing gear, with ballast representing the helicopter weight came down with a mighty crashing sound in the rig - it passed the test in a single go. My instinct tells me that its capable of taking more punishment and has a generous amount of over-design. Which is a good thing for an attack helicopter.

and some tidbit about the tail rotors

The tail rotor of the LCH is an engineering marvel - it weighs just about 14 kg and can be easily lifted by a single hand ! It comprises two composite flex-beams bolted in a cross shape. The flex-beams have the four tail rotor blades. There are no hinges(for flap or drag like a conventional helicopter) or greasing / lubricating points for maintenance. The tail rotor is designed as a 'stiff-in-plane' rotor.

and about the superb A/C and Environment Control System

The air conditioning is very effective - the best place to be on a blazing hot summer day in Jodhpur (with temperatures above 40 deg C) or during a bitterly cold winter day in a forward base in Ladakh (minus 28 C) - is the cockpit, with the engines started up.

We have even 'personalised' the air conditioning - through the flight tests, we located vents strategically that blows air on the nape of the neck of the Pilot & WSO and that location is surprisingly effective!

Long ferries are surprisingly fatigue-free, as a result of the very effective air conditioning, the ergonomic seats excellent auto-pilot and navigation systems. This despite the cockpit being an extremely tight fit - the side canopy panels are just about (or less than) four feet wide.
 
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Sorry, but how could the deployment of two prototypes be relevant in terms of added combat capability?

It's a PR-stunt, nothing more.

It isn't about adding to combat capability, but verifying that the LCH, which was purpose designed to be at it's best when flying and fighting at high altitudes, can deliver the goods. It was put through combat profiles, carrying combat loads, with IAF personnel on board, who could verify it's performance and flight characteristics.

That the first order for 15 LCHs for the IAF and IA is on the verge of being signed is a fact. A little bit of good PR never hurts either. Certainly the Chinese with all those filmy videos have been doing more than their bit of PR of late.
 
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LUH at Ladakh, going through what may be the final set of trials.

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India's LUH in Ladakh for final trials

It’s the final stretch before an indigenous light helicopter will be ready to replace hundreds of Cheetah and Chetak helicopters in military service.

Two HAL Light Utility Helicopter (LUH) prototypes landed in Ladakh on August 19 for what is playing out as a final capability demonstration for the Indian Army before orders are placed. The helicopters, in their final stretch of flight test to meet an Indian armed forces requirement of nearly 200 of these, have been flying sorties between Leh, forward airfields like Daulat Beg Oldie and even super-high altitude helipads at the Siachen glacier. The demonstration, requested by the Army, comes amidst a continuing military standoff in eastern Ladakh between the Indian and Chinese armies. You can read all about the LUH’s final stretch in our June report here.

The LUHs are back in Ladakh for the second time in less than a year. In September last year, an LUH prototype operated from the world’s highest airfield at Daulat Beg Oldie. You can read about those trial flights in our September 2019 report here. The current deployment comes at a dramatically different time from last year. Over the last week, the LUH prototypes have been flying with Indian Army pilots close to areas not far from the military standoff zones. Daulat Beg Oldie, where the LUH has operated from both last year and this week, is also the site of a major mobilisation on both sides of the Line of Actual Control.

The deployment is a crucial one for Hindustan Aeronautics Ltd (HAL), which was recently invited by the Indian Air Force to send a pair of Light Combat Helicopters (LCH) to Ladakh on an unprecedented force projection deployment in an operational setting. Livefist had detailed that deployment here with first videos breaking cover on our YouTube channel.

As we noted earlier this year, the LUH achieved initial operational clearance (IOC) in February, with FOC planned for next year, by which time paperwork on inductions will have begun. Both the IAF and Army have expressed confidence in starting procurement procedures, a sign that the LUH has established early maturity. Most work towards FOC will focus on systems and automatic flight control system (AFCS) work until the services issue their requests for quotation (RFQ) with firm requirements.
 
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Good quality image of the first LSP of the LCH going through ground runs.

Image credit - Anantha Krishnan

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First look at the production standard Light Combat Helicopter (LCH) that will be handed over to the IAF even before a contract is signed for them. The Tipnis grey color gives it away as an IAF bird.

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Brand new Coast Guard ALH-Mk3 helicopters at Aero India 2021

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LCH firing MBDA Mistral AAM during it's trials..

link

LCH launching Mistral ATAM which is a fully digital IR guided fire & forget missile with large off-boresight capability & can be operated at speeds of up to 200 knots and at altitudes exceeding 15,000 ft. Max & Min intercept range 6.5 km & 500 m respectively

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