This is one of two
Arjun Mk1A MBT prototypes that are presently being subjected to
mobility-cum-firepower trials. This photo, which appears in a four-page DRDO
corporate advertisement published in the latest issue of THE WEEK magazine, was taken at the CVRDE’s
proving ground at Avadi earlier this year. The second Arjun Mk1A prototype
comes outfitted with the new digital hunter-killer tank fire-control system,
inclusive of a target auto-tracker and a newly-designed commander’s
panoramic day/night sight that incorporates an IRIS thermal imager (from France’s SAGEM Défense Sécurité) and
an eyesafe laser rangefinder. These optronic sensors are the same as that
installed on the IRDE-developed commander’s panoramic day/night sight which is
presently undergoing user-trials on board an upgraded T-90S MBT.
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Sunday, July 29, 2012
Wednesday, July 25, 2012
Friday, July 20, 2012
The Truth, Only If Revealed, Shall Set You Free
Is it indeed a hoax? Is it a sheer
waste of taxpayer’s money? Or is it an R & D venture that’s lacking
direction and guidance from the apex-level decision-makers of India? The
answers to all these questions can only be revealed AFTER one finds answers to
the following questions:
1) What
were the contents of the political directive given by the MoD to the DRDO in
1996 with regard to the aims and objectives of developing a BMD system?
2) How
was the MoD to ensure that development of a BMD system by the DRDO did in no
way diminish the deterrence value of India’s nuclear weapons arsenal and her
retaliatory second-strike WMD doctrine?
3) On
what terms and conditions did France, Israel and Russia agree in mid-1998 to
provide key technological inputs by way of supplying off-the-shelf hardware and
sub-systems required for the DRDO’s BMD-related R & D programmes?
4) What
then was the resultant BMD launch control centre’s (LCC) architecture,
inclusive of its launch control section, simulation section and shadow
mission control centre (MCC) section, finalised?
5) What
are the LCC’s six core missions?
6) What
are the LCC Task Controller’s 19 major functions?
7) How
was the mission control centre’s (MCC) architecture defined?
8) What
is the demonstrated kill-probability for the launch of four simultaneous (2 x
PAD exo- and 2 x AAD endo-) interceptor missiles?
9) What
is the projected kill-probability for the launch of four simultaneous (2 x PDV
exo- and 2 x AD-1 or AD-2 endo-) interceptor missiles?
10) What is the
projected engagement capability of a standalone terrestrial BMD system (without
early warning from a constellation of four projected geostationary orbit-based missile
monitoring satellites) in terms of simultaneously engaging multiple (how many)
targets?
Do I know the answers (corroborated by
evidence beyond doubt) to the above-listed 10 questions? You bet. Will they
be revealed here? No, for the time is not yet ripe.
Wednesday, July 18, 2012
Russia-India Military-Industrial Cooperation Set To Increase In Scope And Size
Understanding was reached yesterday on a
host of future potential procurement contracts and military-industrial
cooperation programmes when the Russian Deputy Prime Minister Dmitry Rogozin,
heading a high-level delegation to India, held discussions with the Indian
Ministry of Defence (MoD) delegation led by Defence Minister A K Antony. On top
of the agenda was the planned procurement of another three (Batch-3) Project
1135.6 guided-missile frigates (FFG) that would conform to the same
specifications as those for the three Batch-2 Project 1135.6 FFGs that are now
in delivery for the Indian Navy (IN).
Also discussed were plans for Russian
military-industrial involvement in forthcoming domestic shipbuilding projects
like the planned construction of seven Project 17A FFGs and four Project 15B
guided-missile destroyers, stepped life-extension programme (SLEP) for the
three Project 15 DDGs, and another SLEP for the IN’s 10 existing Project 1241RE
guided-missile corvettes, of which the first five were acquired off-the-shelf
from Russia between 1987 and 1991, while six were subsequently licence-built by
the MoD-owned Mazagon Docks Ltd (MDL) and Goa Shipyard Ltd (GSL) at a unit cost
of US$35 million.
The discussions also included plans for
proceeding ahead with the upgrading of the mission management system and
mission sensors of the IN’s existing eight Tu-142ME LRMR/ASW aircraft by
installing on each of them the Novella (Sea Dragon) suite, developed by St
Petersburg-based Leninets Holding Company and already operational on board the
IN’s five existing IL-38SD MRMR/ASW aircraft. Once completed, the upgraded
Tu-142MEs, each armed with torpedoes as well as up to four Novator 3M54E Klub supersonic anti-ship
cruise missiles, are expected to remain in service until 2024.
While all the to-be-built principal
surface combatants for the IN would be built by MDL and armed with
vertically-launched BrahMos-1 supersonic anti-ship cruise missiles, the three
Project 15 DDGs and five Project 1241RE guided-missile corvettes too will be
retrofitted with inclined launchers for the BrahMos. The latter were designed
by Russia’s St Petersburg-based Almaz Central Design Bureau and are currently each
equipped with four P-20 Termit anti-ship cruise missiles and Harpoon-E target
engagement system. Under the planned SLEP—to be carried out by GSL—the P-20s
will give way to eight BrahMos missiles mounted on twin inclined quad
launchers, while the Harpoon-E will give way to the Sigma-E suite.
Therefore, it came as no surprise when
Rogozin with the accompanying high-level military-industrial delegation visited
BrahMos Aerospace Pvt Ltd’s headquarters on July 17, 2012. There, he was shown
a full-scale mock-up of the Army version of the BrahMos Mobile Autonomous
Launcher and was briefed about it by Dr A Sivathanu Pillai, CEO & MD of
BrahMos Aerospace. Rogozin was also briefed on the achievements and progress
the India-Russia JV had made in recent years, including a futuristic ‘Vision Plan
2050’ for developing newer technologies
to remain a market leader in its
fields of activity. After completion of this visit, Rogozin remarked: “I am
delighted to see the enthusiasm of Indian and Russian specialists who have made
the BrahMos project a success. I believe in its bright future as I believe in
the future of friendship between our two nations.” Earlier, when addressing the
young scientists, engineers marketing and management officials of BrahMos
Aerospace he said: “Latest technologies
can be shared with close friends only , which has been seen in our cooperation
in BrahMos, both India and Russia are
great countries and working together we can do wonders. I wish you all the best
and success in the development of futuristic technologies for both our nations.”
During the Russian Deputy Premier’s visit,
Dr Pillai highlighted the importance of the JV’s product being inducted into
service with the Russian Navy, and expediting the development of new products,
including the hypersonic BrahMos-2, to maintain technological edge over other
countries and maintain its ‘First-in-the-World’ status. Rogozin was accompanied
by the Ambassador of the Russian Federation to India Alexander Kadakin, Head of
Federal Services for Military Technical Cooperation Alexander Fomin, Head of
Military Industrial Consortium NPOM Dr Alexander Leonov, Head of Tactical
Missile Armament Cooperation Boris Obnocov, Head of United Aircraft Cooperation
Mikhail Pogosyn, and the Head of Rosoboronexport State Corp Anatoli Isykin, and
other Russian military-industrial officials.
Tuesday, July 10, 2012
Users Insist On Radical Makeover For Tejas Mk2
Vendor selection by the Bengaluru-based
Aeronautical Development Agency (ADA) in consultation with the Indian Air Force
(IAF) for supplying various critical sub-systems of imported origin for the Tejas
Mk2 multi-role combat aircraft (MRCA), which has been delayed by almost
one-and-a-half years, is now expected to be concluded by next March. By then,
the IAF would recommend the foreign vendor for supplying the integrated
fire-control system (including an infra-red search-and-track sensor, or IRST,
integrated with an AESA-based multi-mode radar, or MMR), and a frameless canopy
actuation system.
The IAF’s favourite choice is believed to be the Vixen850E AESA-based
MMR integrated with the 55kg Skyward nose-mounted IRST, both of which have been
developed by the UK-based Selex Galileo subsidiary of the Italy-based
Finmeccanica Group, and is being promoted in India by Data Patterns Pvt Ltd.
The Vixen 850e features an innovative roll-repositionable AESA antenna to
provide a full +/-100-degree field-of-regard, which allows the aircraft to turn
away after a BVRAAM launch, whilst still maintaining data-linking with the
BVRAAM. Choice of the optimum combination of air combat missiles (both
within-visual-range and beyond-visual-range) will be totally dependent on which
fire-control system is finally selected, with the principal contenders being
Raytheon and MBDA (AIM-132 ASRAAM/AIM-120C AMRAAM), RAFAEL of Israel
(Python-5/Derby), MBDA (MICA family) and Russia’s Vympel JSC (RVV-MD/RVV-SD
combination), which IAI/ELTA Systems will likely propose in case the
Python-5/Derby solution is rejected by the IAF.
The principal lightweight PGM destined for
the Tejas Mk2 (as well as for the Rafale M-MRCA and Mirage 2000UPG) is likely
to be the AASM Hammer modular air-to-ground weapon built by France’s SAGEM Défense
Sécurité. France’s defence procurement agency DGA on May 31 successfully
carried out the first qualification test-firing of the laser terminal guidance
version of the Hammer at the Cazaux air base from a Rafale M-MRCA. The target,
a bridge pier located more than 50km from the release point, was illuminated by
an airborne illuminator that was activated during the last few seconds of the
PGM’s flight. The AASM Hammer’s guidance was deliberately initialised by
offsetting the target’s GPS coordinates by over 50 metres. Thanks to its
navigation, laser spot detection and terminal guidance algorithms, the AASM hit
its target to within a metre. Prior to the impact, the PGM steered itself to a
glide slope of 20 degrees, preferred for this type of operational scenario. The
AASM Hammer is a family of air-to-ground PGMs comprising guidance and range
augmentation kits attached to standard bombs. The GPS/inertial/laser guidance
version, designated SBU-64 Hammer, joins the AASM range which already includes
two other versions qualified for deployment by the Rafale: GPS/inertial and
GPS/inertial/infra-red versions. The SBU-64 features a semi-active laser seeker
in place of the infra-red imager, plus dedicated algorithms that are activated
during the terminal phase. This version of the AASM can be used to attack
moving targets.
Both the IAF and Indian Navy have also
recommended that the projected cockpit of the Tejas Mk2 should offer a range of
new and enhanced features such as a centric, modular concept of operation,
enabling pilots to control and personalise the displays, applications and
information sources. The IAF is believed to have zeroed in earlier this year on
the CockpitNG option, which was originally developed by ELBIT Systems for the
global F-16 upgrade market, and can be easily sourced from HALBIT Avionics Pvt
Ltd, the joint venture between ELBIT Systems and the MoD-owned Hindustan
Aeronautics Ltd (HAL). For the CockpitNG, an advanced display fusion engine has
been developed, allowing information to be fused in multiple layers, yet
displayed in one place. The new capabilities provide pilots with enhanced
situational awareness and mission management, reduce pilot workload and support
successful achievement of mission goals in all weather conditions. The
CockpitNG, which is being shown for the very first time at the Farnborough International
Airshow (FIA-2012), comprises a large area panoramic display (LAD), a low-profile
head-up display (LPHUD) and the Targo helmet-mounted display/cueing system. New
applications are projected on all elements of the CockpitNG, displaying all
relevant data while hiding the irrelevant information to prevent overload. The
LAD touch-screen offers a unique concept of operation, enabling pilots to
personalise their displays, applications and information with a sweep of the
finger, according to specific mission requirements. The cutting-edge 3-D map
concept of operation, centered in large size, projects a 3-D image of the
world, viewing fused information from own-ship sensors and data-link members’
sensors. The projection of fused synthetic and real-time pictures, videos,
sensors and information makes any mission possible and supports successful
achievement of enhanced mission goals in all weather conditions.
The 22-inch LAD with HD resolution, is a
new-generation avionics display system designed to replace all conventional flight
instruments and AMLCD screens, thus creating a full glass-cockpit. The display
combines sensor fusion with a decision support system, in order to present all
relevant information in a format that facilitates the pilot's missions. The LPHUD
is designed as a combined solution for cockpits containing a large-area display
due to its streamlined size and shape that requires less space than typical HUD
designs. Providing sizeable enhancements for resolution, brightness, accuracy,
reliability and maintainability compared to current-generation HUDs, the LPHUD
employs digital display technology (LCD-raster display) and provides capability
for video processing and image display functions, digital video interfaces,
analogue deflection interfaces and sensor display fusion growth provisions. The
TARGO HMD will deliver all mission-critical avionics and advanced applications
directly to the helmet. Augmented reality will; be achieved by a combination of
real-time videos and synthetic data projected on the visor, thereby enhancing
pilot situational awareness and increasing operational success rates. When
installed on board the Tejas Mk2, the CockpitNG along with its LAD and LPHUD, plus
the OSAMC and the processor-cum management LRU will collectively offer
significant weight-savings and at the same time make available additional
internal volume for accommodating additionally mandated avionics like the IRST
sensor, and the open-architecture and integrated defensive avionics suite, or IDAS.
What has already been confirmed thus far
is that the two-way airborne operational data-links (ODL) will be supplied by
HAL, which, among other systems, will also be supplying the OSAMC mission
computer (to cater to the increased processing requirements of the new
fire-control system, stores management functions, and a new-design glass-cockpit),
the RAM-1701AS radio altimeter, TACAN-2901AJ and DME-2950A tactical air
navigation system combined with the ANS-1100A VOL/ILS marker, CIT-4000A Mk12
IFF transponder, COM-1150A UHF standby comms radio, UHF SATCOM transceiver, and
the SDR-2010 SoftNET four-channel software-defined radio (working in VHF/UHF
and L-band for voice and data communications), and the Bheem-EU brake
control/engine/electrical monitoring system, all of which have been developed
in-house by the Hyderabad-based Strategic Electronics R & D Centre of HAL.
SAGEM Défense Sécurité will supply the Sigma-95N ring laser gyro-based inertial
navigation system coupled to a GPS receiver (which is also on board the
Su-30MKI and Tejas Mk1). The IDAS, which has been under joint development by
the DRDO’s Bengaluru-based Defence Avionics Research Establishment (DARE) and
Germany-based Cassidian since 2006, will include the multi-spectral AAR-60(V)2
MILDS-F missile approach warning system, the Tarang Mk3 radar warning receiver
(built by Bharat Electronics Ltd), the open-architecture EW processor-cum
management LRU, countermeasures dispenser built by Bharat Dynamics Ltd, and
Elettronica of Italy’s Virgilius suite that makes use of ELT-568 directional
jammers (now being installed on the IAF’s MiG-29UPGs), which make use of active
phased-array transmitters for jamming hostile low-band (E-G) and high-band
(G-J) emitters. The redesigned digital flight-control computer will be built by
BEL.
For tactical strike missions, the Tejas
Mk2 will be equipped with the Litening-3 LDP, supplied by RAFAEL Advanced
Defence Systems of Israel. The actuated retractable aerial refuelling probe,
mounted on the Tejas Mk2’s starboard cockpit section, will be supplied by
UK-based Cobham Mission Equipment. The same vendor will also supply the
pneumatic air-to-ground stores ejection systems like release units, practice
bomb carriers, multiple stores carriers, AGML-3 triple-rail launchers, and
high-velocity ejection launchers, almost all of which are already operational
on the IAF’s fleet of BAE Systems Hawk Mk132 lead-in fighter trainers. Cobham
will thus join a growing list of foreign vendors associated with both the Tejas
Mk1 and Mk2, which include Intertechnique SA, SAFRAN Group’s SAGEM Défense
Sécurité subsidiary and IN-LHC ZODIAC of France; US-based GE Aero Engines,
Hamilton Sunstrand, EATON Aerospace, MOOG, and Goodrich Aerospace; UK-based
CHELTON Avionics, Penny + Giles, and Martin Baker (supplier of Mk 16LG
zero-zero ejection seats); Italy’s Secondo Mona; and Germany’s Cassidian and
Faure Herman. Indian companies involved include HAL, TAML, Data Patterns Pvt
Ltd, Government Tool Room and Training Centre (GT & TC), and SLN
Technologies Pvt Ltd.
The Tejas Mk2 will have a length of 0.7 metres more than that of the Tejas Mk1 for incorporating a stretched
nose section and a modified fuselage section aft of the cockpit for housing an
expanded complement of mission avionics LRUs), height of 4.6 metres (as opposed
to 4.4 metres of the Tejas Mk1) to accommodate an enlarged vertical
tail-section, and a wingspan of 8.2 metres—same as that of the Tejas Mk1—that,
however, will feature an increased wing area. External stores capacity will be
boosted to 5,000kg (as opposed to 3,500kg for the Tejas Mk1), while the twin
internal air-intake ducts will be enlarged to cater to the increased airflow
requirements of the 98kN thrust F414-GE-INS6 turbofan built by GE Aero Engines.
India’s Ministry of Defence has sanctioned US$542.44 million (Rs2,431.55-crore)
for ADA to develop the IAF’s Tejas Mk2 variant and the Indian Navy’s LCA Mk2
(Navy) variant so that the first Tejas Mk2 prototype can roll out by September
2013 and fly by December 2014, following which HAL would begin series-producing
the MRCA by 2016. While the IAF is committed to procuring an initial 83 Tejas
Mk2s, the Navy has expressed its firm requirement for 46 LCA Mk2 (Navy).
Just like the Tejas Mk1, the airframe of
the Tejas Mk2 will incorporate 13 major composites-built structures fabricated
by TATA Advanced Materials Ltd (TAML), which was awarded the contract after the
state-owned National Aerospace Laboratory (NAL) expressed its failure to
deliver the structures on time. Structures to be produced by TAML for each
aircraft will include a rudder assembly, fin assembly, 60 carbon-fibre
reinforced (CFC) wing spars, 38 wing fuselage fairing skins, 20 wing fuselage
fairing blocks, 41 CFC centre fuselage components, two forward undercarriage
doors and two aft undercarriage doors.
Friday, July 6, 2012
How China Employs ‘Mis-Direction’ To Achieve Its Military-Industrial Objectives
Since the latter half of 1989, the US had imposed a prohibition on the export to China of all US-made military hardware and related technical data as a result of the conduct in June 1989 at Tiananmen Square by the People’s Liberation Army (PLA) of the People’s Republic of China (PRC). In addition, in February 1990, the US Congress imposed a prohibition upon licences or approvals for the export of military hardware to the PRC. In codifying the embargo, the US Congress had specifically named helicopters of all types for inclusion in the ban. Despite this, Pratt & Whitney Canada Corp (PWC), a Canadian subsidiary of the US-based United Technologies Corporation (UTC), and Hamilton Sundstrand Corp (HSC) the US-based subsidiary of PWC, knowingly and willfully consented to the export of 10 (ten) PWC PT6C-67C turboshaft engines (each rated at 1,679shp), which were delivered between 2001 and 2002 along with related HSC-developed dual-channel full authority digital electronic engine control (FADEC) software without obtaining an export licence from the US. Based on documents filed and evidence gathered for an on-going court case initiated by the US Departments of Commerce, Justice and State in the District of Connecticut, it has since emerged that PWC on June 28, 2012 pleaded guilty to violating the US Arms Export Control Act and making false statements in connection with its illegal export to the PRC of US-origin military software used in the development of the PLA’s new-generation attack helicopter, the 6.5-ton ZW-10, which has been under development since the mid-1990s at the Changhe Aircraft Industries Group (CAIG) and China Helicopter Research and Development Institute (CHRDI), both based in Jingdezhen, Jiangxi province.
In addition, UTC, its US-based subsidiary Hamilton Sundstrand Corp (HSC) and PWC have all agreed to pay more than US$75 million as part of a global settlement with the US Justice and State Departments in connection with weapons export violations and for making false and belated disclosures to the US government about these illegal exports. While roughly $20.7 million is to be paid to the Justice Department, the remaining $55 million is payable to the State Department as part of a separate consent agreement to resolve outstanding export issues, including those related to the ZW-10. Up to $20 million of this penalty can be suspended if applied by UTC to remedial compliance measures. As part of the settlement, UTC and HSC have admitted conduct set forth in a stipulated and publicly filed statement of facts.
Although PWC knew since 1998 that the ZW-10 was destined to be an attack
helicopter, it allegedly decided to ‘suppress’ this piece of information also
failed to notify UTC or HSC about the actual application of their products.
Instead, both UTC and HSC were reportedly told that their products were meant
for a 7-ton civilian multi-role helicopter—the AC-352—that was apparently being
developed by CAIG and CHRDI, and since the PRC’s own indigenous engine for the
ZW-10, the WZ-16, had not yet been developed by the PRC’s China Helicopter
Turbine Engine Corp (CHTEC), the PWC PT6C-67Cs and their FADEC software
packages would be used only temporarily only for the ZW-10’s flight-test phase,
and would later be removed for eventual and permanent application/fitment on
board the AS-352. Furthermore, both UTC and HSC were reportedly given an
assurance (first conveyed to PWC by the PRC) by UTC that their products would
be exclusive to all civilian variants of the AC-352. Consequently, HSC began
cooperating with CAIG and CHRDI, which lasted till early 2004. PWC remained
involved in the ZW-10’s R & D efforts till June 2005.
In a related development, as part of its efforts to keep UTC, PWC and HSC more than happy, the PRC’s Aviation Industry Corp (AVIC) decided to enlarge the financial cake by announcing on November 6, 2002 that PWC’s PT6B-67A engine (rated at 1,200shp) and HSC’s dual-channel FADEC had been selected on an exclusive basis to power the three-engined AC-313 civilian multi-role heavylift helicopter, while for the 7-ton EC-175 twin-engined civilian multi-role helicopter (which is being co-developed by AVIC and Eurocopter SA since December 2005), PWC’s PT6C-67E turboshaft, rated at 1,775shp, had been selected as the exclusive powerplant along with HSC’s dual-channel FADEC.
Based on my interactions with several PRC-centric industry officials since 1996 at the biennial Airshow China aerospace expos held in Zhuhai, it can now be confirmed with certainty that the CAIG and CHRDI were mandated by the PLA sometime in mid-1998 to develop four types of new-generation helicopters—attack helicopter, multi-role heavylift helicopter, single-engined 2-ton multi-role helicopter meant for use as a LOH/LUH (this being the AC-301) and a medium twin-engined helicopter—all three of which were required to be capable of undertaking ‘hot-n-high’ flight operations throughout the Tibet Autonomous Region (TAR) and other high-altitude regions of China.
Two flight-test
prototypes of the ZW-10 were built in 2003 and two more in 2004. The first
flight of Prototype No2 took place on April 29, 2003. The latter two prototypes
were evaluated by the PLA Army by 2007. Originally designed by the 602nd Research Institute, 608th Research Institute, and the 613th Research Institute since the
mid-1990s, the ZW-10 makes use of the indigenous GJV289A digital flight-control
data bus, and is equipped with a fly-by-wire flight control system. The
auxiliary power unit is centered on a brushless DC electric
motor designed by Huafeng Avionics Co, a subsidiary of Guizhou Aviation
Industries Group. The weapons package includes eight NORINCO-built
7km-range Lan Jian 7 (Blue Arrow 7/AKD-10) laser-guided anti-armour guided-missiles
in box launchers under the stub wings, and a 30mm cannon mounted under the
chin, aimed via a gunner’s helmet-mounted sight. Furthermore, TY-90 AAMs can be
carried for use against hostile helicopters and slow-moving fixed-wing
aircraft. The ZW-10’s mission avionics suite is integrated via a MIL-STD-1553B
digital data bus, while its integrated EW suite—called YH-96—is the first
of its type developed by the PRC that integrates the millimetre-wave
fire-control radar, radar warning receivers, laser warning receivers, and
countermeasures dispenser suite together. A large nose turret, developed
by the 218th Factory of China
North Industries Corp’s (NORINCO) Opticals Science & Technology Ltd
subsidiary, houses the FLIR, TV camera, laser rangefinder and target
designator. The pilots’ helmet-mounted sight was developed by the 613th Research Institute, while the 69.5kg
millimetre-wave target acquisition radar has been built by China Northern
Electronic Co, a subsidiary of NORINCO. Twin missile approach warning system
(MAWS) sensors are installed on both sides of the fuselage behind the nose
turret. The ZW-10 is also fitted with an integrated communications suite,
four-axis automatic flight control system, and a ring laser gyro-based inertial
navigation system. The ultimate powerplant for the ZW-10 will be the
CHTEC-developed and built WZ-16
engines.
The first prototype of the AC-313 multi-role heavylift helicopter made its maiden flight on March 19, 2010 and on September 2, 2010 one of the AC-313 prototypes set an altitude record for PRC-built helicopters by exceeding an altitude of 8,000 metres (26,250 feet) in a flight aimed at proving the on-board fuel, lubrication and hydraulic systems. The helicopter performed the feat at a mass of 9.2 tons (20,300 lb), compared with a MTOW of 13.8 tons. The Civil Aviation Administration of China (CAAC) issued a certification of airworthiness for the AC-313 on January 9, 2012. The AC-313’s main and tail rotor blades are made of composites, while its ball-shaped main rotor hub is built with titanium. Up to 50% of the airframe is built with composites, while titanium has been used for the remainder. The avionics suite, integrated via a ARINC-429 digital data bus, includes an all-glass cockpit, nose-mounted search radar, and a four-axis automatic flight control system. The AC-313 can carry either 27 passengers or a 4-ton internal load, or a 5-ton load on external slings.
The AC-352 medium twin-engined multi-role helicopter, which was first showcased at the Airshow China expo in Zhuhai in late 2010, bears a strong resemblance to the EC-175, and its military variant will be known as the Z-15. The Z-15’s powerplant too, like the ZW-10, will comprise CHTEC-developed and built WZ-16 engines. What remains unexplained to this day is why the AC-352, whose existence was known since 1998, has yet to make an appearance, let alone its maiden flight. Was it because CAIG and CHRDI were awaiting the transfer of the EC-175’s design packages from Eurocopter SA via AVIC—something that was possible only by 2008? Only time will tell.—Prasun K. Sengupta
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