vivek_ahuja wrote:shiv wrote:Army Day Bengaluru 2003
Shiv saar, I remember these armed Cheetahs. Weren't they called Cheetal? I think we even exported some of these. <SNIP>?
-Vivek
Indranil wrote:I have lost some of the tender files. About a year back, HAL had issued a tender for integration of 12.7 mm guns on LUH.
Indranil wrote:Meanwhile, HAL plans to build 33 LCH's per year from 2019-20 onwards.
Indranil wrote:From Design & Development and Supply of Display Head Assembly
Indranil wrote:Tsarkar sahab, that is not true. You know that Cheetal holds the world altitude record (25,150 feet) and has done rescue missions at 23,000 feet!!!
The transmission limits kicked in only at lower altitudes. Even then, Cheetals had better top speed, payload and range than the Cheetah because the engine itself was lighter and had better fuel efficient. However, at high altitudes the advantages were much more significant. At higher altitudes, the engine performance degrades drastically below the transmission limits and hence the performance was limited by available engine power alone. With bigger engines, Cheetals had higher payload carrying capability (90kg vs 50 kgs) at 20,000 feet compared to its predecessor. Pilots could fly in with more fuel, reaching further and higher or stay longer. It also provides significantly better control margins making operations safer (over and above the additional safety accorded by the FADEC engine).
Even the Nepalese love them.
The Indian government has blamed Ecuador for the high loss rate of its Hindustan Aeronautics Limited (HAL) Dhruv utility helicopters after the Latin American country decided to get rid of its remaining platforms.
Answering questions in parliament in late November, the Indian minister of state in the Ministry of Defence (MoD), Dr Subhash Bhamre, said that all of the four crashes of the Ecuadorian Air Force's (Fuerza Aérea Ecuatoriana: FAE) Dhruvs between October 2009 and January 2015 were found to be the fault, or to probably be the fault, of the Latin America operator, and were not down to any inherent design deficiency in the Indian-built aircraft.
Indranil wrote: Cheetal holds the world altitude record (25,150 feet)
aame.in
HAL To Arm Its LCH & ALH Platforms With A New Air-to-Air Missile
Equipping the helicopters to engage in aerial warfighting.
Air to Air Missile For India's Light Combat Helicopter [LCH] & Advanced Light Helicopter [ALH]
Hindustan Aeronautics Limited [HAL], currently developing the Light Combat Helicopter [LCH], as well as the Advance Light Helicopter [ALH], plus its armed variant, the ALH-WSI plans to arm them with Air to Air Missiles [AAM]. Its Rotary Wing Research and Design Centre [RWR&DC] recently floated a Request For Information [RFI] seeking response from Global vendors for a suitable AAM solution.
20161231 - LCH - ALH-WSI - AAM - 03
The LCH & ALH-WSI are intended to be armed with AAM capable of hitting aerial targets at a distance of 5 km, utilising passive, fire-and-forget, heat-seeking, Infrared [IR] guidance system. Ideal for engaging other rotor-mounted adversaries, or UAV/UCAV. The chosen solid-fuel missile would need to demonstrate the ability to be targeted, by either the pilot or the Weapon System Operator [WSO], using the helicopter's Helmet-mounted Pointing System [HPS], as well as slewable Electro-Optical Sighting System [EOSS]. Each LCH & ALH-WSI is being developed to eventually hold 4 such missiles - 2 each under either of its 2 weapon stub-wing pylons. Depending on the mission requirements, the pylons can, in tandem, be mounted with land-attack Anti-Tank Guided Missiles [ATGM], unguided Rockets/bombs, or Anti-Radiation Missiles [ARM].
Interestingly, this means that, earlier reports, that HAL would be integrating the MBDA Mistral-2 with both the helicopters, may no longer hold true. This, despite both the helicopters being photographed, on various occasions, with the Mistral-2 on its pylons. The ALH has, in fact, test-fired the Mistral-2 ATAM during weapon trials. The missile's overall specifications, on paper, match that stated in the RFI's specification document. Incidentally, MBDA had announced giving a local Indian company the Work Order to develop a suitable missile launcher for mounting on the helicopters.
Three possible reasons pop up in the mind. First, the missile has not performed as desired during this year's trials. Suspect, given that the RFI was initially floated in April 2016, even before the LCH weapon trials were scheduled to begin, later, in July 2016. Second, the RFI states that the chosen missile system would need to be manufactured & maintained locally through the Transfer of Technology [ToT] route. A logical view given that, the Indian Army, Air Force & Navy would have a combined requirement of more than 300 heptrs of both types. Economy of scale, & all that. Possible disagreement may have risen on the nature & extent of ToT that the OEM is willing to part with. Thirdly, a negotiating tactics designed to strengthen India's hands. India, presently, has no on-going, indigenous, programme for developing such a short-range Air-to-Air Missile. Thus, it has to acquire one from the international market. Would be interesting to see which 1 it finally zeroes in on & why the change in preference away from the MBDA solution.
Godspeed
Also Read: Bolstering India's Coastal Defences - Navy On The Hunt For New Missiles
WSI - Weapon Systems Integration
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The army has firmed up plans to retire its oldest light-utility helicopters, pushing the panic button, as a string of recent crashes have blemished the safety record of the machines.
A South Block source said that the early variants of the Cheetah and Chetak fleet will be replaced by the locally-made advanced light helicopter (ALH), also known as Dhruv.
The source said the army’s aviation wing would replace 41 Cheetahs and Chetaks with new helicopters from the “ALH reserve stock” and the proposal would be sent for Cabinet committee on security approval soon.
The army and air force grounded their fleets of 280 light-utility helicopters last December, concerned if the machines were fit to fly, after three aviators were killed in a crash in West Bengal.
The Kamov-226T light utility choppers, to be built with Russia, are to replace these helicopters. However, the $1-billion programme is yet to kick off and the military may have to wait several years for the new machines. Russia will supply 60 helicopters in flyaway condition while the remaining 140 will be manufactured in India.
“The manufacturing line of the ALH is quite stable and the machines are coming out at a pretty steady rate. The Kamovs will take time to come,” a senior officer said. The army operates a mix of 150 Cheetahs and Chetaks. A new line of ALH has also been commissioned at Kanpur.
The design of these helicopters is more than 50 years old and their airworthiness is being questioned after a string of mishaps. Nine personnel were killed in six accidents involving these machines during 2012-15. The Cheetahs play a crucial role in supporting the army on the Siachen glacier, one of the world’s highest battlefields, flying at more than 20,000 feet.
A group of army wives met defence minister Manohar Parrikar in 2015, demanding the helicopters be retired. HAL has licence-produced 625 Cheetah and Chetak helicopters. It no longer builds them but is responsible for their maintenance and repair, a cause for concern.
CHEQUERED PAST
November 30, 2016: A Cheetah helicopter crashes at Sukna in West Bengal, killing three officers
March 11, 2016: A Cheetah helicopter crash lands in Hoshiarpur
February 3, 2015: Army chief Gen Bipin Rawat (then a Lt Gen) survives Cheetah crash in Dimapur
October2, 2014: Three army aviators killed in Cheetah crash near Bareilly
May 23, 2012: Pilot killed in Cheetah crash at Siachen
August 18, 2010: 3 officers die in Cheetah crash in Nagaland
The Cheetah and Chetak helicopters, lifeline of troops in high-altitude areas, including the Siachen glacier, are being cleared for flying in batches by Hindustan Aeronautics Limited (HAL) after carrying out a comprehensive safety check.
Indranil wrote:41 "early variant" Cheetahs and Chetaks to be replaced with new helicopters from the ALH "reserve stock”. This is a very pragmatic decision by IA since Ka-226s are nowhere in sight and the LUH will take at least 3-4 years to start serial production. Use the ALH for now and send them back to reserve/alternate role as the LUHs come online.
Frankly, I can never get my head around HAL producing both the Ka-226 and the LUH. Now that it is quite sure that if they come, the deliveries would roughly start at the same time, it makes all the more sense to push Ka-226 into the "back-up" option. If LUH doesn't pan out the way it should (very unlikely but a firm deadline should be issued), then Ka-226s will be produced. Otherwise, HAL should be asked to just double the currently envisioned production rate of LUH. Give Russians other business where we can't design the machines on our own: more FGFAs, submarines, Klub missiles, regional airliner etc.
Rakesh wrote:ashish: as much as possible, please do not post entire articles from links. Title and link is sufficient. Copyright laws are fairly stringent now. If you want to make a point, quote a portion of the article. But nothing more.
Indranil wrote:HAL’s debutant stars at Aero India
shiv wrote:Indranil wrote:HAL’s debutant stars at Aero India
I had taken photos of the first displayed "concept images" in either 2013 or 2011 Aero India. Can't recall. The agonizing part is that one hears nothing for years and years until Aero India resurfaces..
