post cleared for a more detailed intro
General overview
The PAC JF-17 Thunder, also known as the Chengdu FC-1 Fierce Dragon (simplified chinese æžé¾™, traditional chinese 梟é¾, pinyin:"XiÄo Lóng") [Note: Some analysts refer to the J-10 Vigorous Dragon (F-10 Vanguard) as the "Fierce Dragon".] in China, is a 4th generation single-seat multi-role fighter aircraft jointly developed by China and Pakistan. The "JF" and "FC" designations stand for "Joint Fighter" and "Fighter China" respectively. The first two aircraft were delivered to the Pakistan Air Force on 2007-03-12. Anon. (12 March,2007) [
http://www.geo.tv/geonews/details.asp?id=3323¶m=1 Two JF-17s Delivered to Pakistan] . "GEO News".] The JF-17/FC-1 is designed to be a cost-effective plane which can meet the tactical and strategic needs of air forces of developing countries. On January 22 2008, Pakistan started serial production of the aircraft at the Pakistan Aeronautical Complex, Kamra. [ [
Defence Security Report JF-17 production commences - Jane's Air Forces News ] ] [ [
Pakistan Launches Production Of JF-17 Thunder Fighter Jets Urdu ] ] [ [
DAWN.COM | Archive | Your Source of News on the World Wide Web Sub-assembly of Thunder aircraft begins at Kamra -DAWN - Top Stories; January 23, 2008 ] ] .
Development
The JF-17 is being built by China's Chengdu Aircraft Industry Corporation (CAC) and Pakistan Aeronautical Complex (PAC). Fact|date=March 2008
The project is expected to cost about US$500 million, divided equally between China and Pakistan, while each individual aircraft is expected to have a fly-away cost of US$8-15 million. The JF-17 Thunder initial development project was completed in a period of four years. Anon. (2003) [
FC-1 / JF-17 Thunder JF-17 Thunder/FC-1] . "Global Security".] However, later improvements to the project has taken up more time. Pakistan has announced that it will procure 150, but this may easily go up to 300. The JF-17 will replace Pakistan's MiG-21-derived Chengdu F-7, Nanchang A-5 (Q-5) and Mirage III/V currently in service. Azerbaijan and Zimbabwe have each placed orders as well. 9 other countries which have expressed interest in purchasing the JF-17 are Bangladesh, Burma (Myanmar), Egypt, Iran, Lebanon, MalaysiaIqbal, Anwar. (Feb, 2005) [
army Malaysia looks to Pakistan as source of armaments] . "Pakistan Military Consortium".] , Morocco, Nigeria and Sri Lanka, plus Algeria, which has reversed the decision of opting the latest MiG-29UBS.
In 1986, China signed an agreement with Grumman to develop an upgrade for the J-7 known as the "Saber II", the replacement of the abandoned "Super 7" upgrade of J-7. The program was cancelled in 1990, primarily due to worsening relations with the U.S. following the Tiananmen Square protests of 1989. However, CAC kept the program alive by providing low-level funding from its own resources.
After U.S. sanctions were imposed on Pakistan in 1990, Pakistan also became interested in the project.
The first prototype was rolled out on May 31 2003, conducted its first taxi trials on July 1, and made its first flight on August 25 of the same year. Prototype 03 made its first flight in April 2004. On April 28, 2006, Prototype 04 made its first flight with fully operational avionics.
The first JF-17 prototype aircraft (called FC-1) was rolled out in May 2003. It made its first flight in August 2003. Later on, two more prototype aircraft were added for basic structure, flight qualities, performance and engine flight testing while two prototype aircraft were involved in comprehensive avionics flight testing. The basic flight testing was completed in 2007 which also marked the arrival of JF-17 Thunder aircraft in Pakistan where it was formally presented to the nation as a Pakistan Day gift on 23 March 2007. A Test and Evaluation Flight was established at PAC Kamra which carried out the detailed operational evaluation of the aircraft as well as the training of ground and air crew. The JF-17 aircraft has been formally inducted in Pakistan Air Force by replacing A-5 aircraft of No 26 Squadron. The aircraft has already participated in Farnborough Airshow in UK and Zhuhai Airshow in China in 2010.
Production
Pakistan Aeronautical Complex (PAC) holds the exclusive rights of 58% of JF-17 airframe co-production work. A comprehensive infrastructure comprising state of the art machines and required skilled human resource has very quickly been developed at the Complex.
The final assembly and flight testing of the aircraft was the first JF-17 co-production activity to start at PAC. The first PAC produced aircraft was handed over to Pakistan Air Force in November 2009. Since then, aircraft are being produced regularly to meet the required schedule. The co-production of sub assemblies and structural parts has also commenced and is sequentially attaining the sustained production status. Besides upgrading the production system, PAC has also upgraded its quality, technology and archive management systems to meet the production and management standards of a 3rd generation fighter aircraft.
Design
Looking at the status of the development's work, the fourth prototype version of the JF-17 Thunder combat jet has successfully completed its first operational flight in Chengdu, China, on Wednesday, 2006-03-10. Anon. (11 May, 2006) [
Zulfiqar resigns, levels allegations against MQM and Malik - PakTribune 4th Prototype JF-17 Thunder aircraft successfully completed inaugural flight JF-17 Thunder] . "Pak Tribune".] The 4th prototype of the JF-17 Thunder combat jet is configured as a multi-role fighter-bomber and is capable of carrying multiple air-to-air and air-to-ground weapons. The fighter jet is equipped with advanced electronics and weapons systems. Pakistan received the first consignment of 2 aircraft on 2007-03-23, while the Pakistan Aeronautical Complex in Kamra will start manufacturing the JF-17 in 2008. China will start official production in June 2007.
The fourth prototype version is said to be redesigned with F-35 style Divertless Supersonic Intakes (DSIs) being the most notable feature; according to Lockheed Martin, DSIs are more stealthy than other conventional air intakes as well as DSIs also divert turbulent boundary-layer airflow away from the engine inlet Anon. (12 May, 2006) [
http://www.-----------/jf-17_thunder.html JF-17 Thunder] . "Pakistan Defence - JF-17 Multirole Aircraft".] Anon. (30 Dec, 2006)
Many advanced aerodynamic solutions of the modern contemporary fighters are embodied in FC-1/JF-17, i.e. moderate aspect ratio wing design, large strake wing sections, cambered twist wing profile, full span all moving automatic Leading Edge Flaps (LEF). These Characteristics provide FC-1/JF-17 excellent sub-transonic maneuverability and Short Take-off and Landing (STOL) capability.
At the Sixth Zhuhai Airshow in China, a Unit Training Device (UTD) appearing identical to the earlier mockup of the JF-17 was publicly displayed, and the manufacturer of the aircraft, along with other manufacturers of airborne weaponry, provided more detailed information on the projects:
Avionics
The software of JF-17 totaled more than one million lines of instructions, incorporating the concept of open architecture. Instead of using the common Ada, the programming language of JF-17 software is written in C++ instead. The reason for using C++ instead of Ada was due to practice of the commercial off-the-shelf to better utilize the large number of civilian software programmers available. The avionics of JF-17 prototypes was based on Motorola 88000 microprocessor originally, but can be changed to other types of the same class. The 4th prototype includes advanced avionics features such as:
Cockpit
* Electronic Flight Instrument System with cockpit displays that are compatible with western systems such as those built by Rockwell Collins and Honeywell.
**HUD is a state-of-the-art system developed by Pakistan Aeronautical Complex (PAC).
**All HUD and head-down displays are compatible with the standard electro-optical targeting pod that is carried externally.
**Many images/information can be displayed at the same time.
**The control panel consists of only 3 multi-function displays.
***All information is processed and displayed on them.
***Each screen's functions can be redefined individually, and are exchangeable.
***Brightness and contrast can be adjusted automatically or manually, and can be made compatible with night vision goggles.
***In mid-2007, Chinese state-run television station CCTV-7 aired the latest information on the EFIS of JF-17 with most conventional analogue dial indicators eliminated:
****It was shown that the EFIS of JF-17 consists of three large rectangular shaped color MFDs that appeared to be LCD. The MFD in the middle is in a lower position than the two on the side. Unlike most MFD with width greater than height, all MFDs on JF-17 appear to be rotated 90 degrees, i.e. with height much greater than width. A digital moving map display in Chinese is shown on the MFD to the right. However, other languages are also available, but it can be concluded for sure that English is definitely the dominant language.
****There is a monochrome up-front control panel (UFCP) directly under the HUD, above the MFD in the middle. Control buttons are arranged to the left and the right sides of the UFCP, while there are three lines of display similar to that of civilian hand-held scientific calculators in the center, providing information such as dates in English. It appears that the displays of UFCP can only display information in English.
*HOTAS control.
*Intelligent avionics.
**Avionics system is all-digital and fully integrated.
**Distributed structure with open architecture.
***Two independent but exchangeable (can back up each other) STD-MTL-1553B data buses connect all equipment, plus two powerful control computers (that can also back up each other).
***Each computer controls one data bus.
***The current MIL-STD-1553B data bus can be readily replaced by MIL-STD-1773 fiber optic bus, on customer request.
*The seat is inclined more than the normal 13/14 degrees.Fact|date=November 2007
Radar
Several radars have been tested onboard prototypes of JF-17, which includes:
;Chinese Nanjing KLJ-7 radar: Many radars on the JF-17 have been tested, and many were selected for the first batch of JF-17s/FC-1s. However, recently, it has been disclosed by PAF Air Chief Marshal Tanvir Mahmood Ahmed that the supplied JF-17s to Pakistan have KLJ-7 radars. [ [
JF-17 Arrived in Pakistan - MILAVIA Military Aviation News MILAVIA News - JF-17 Arrived in Pakistan ] ] [ [
JF-17 Thunder Multi-role Fighter Aircraft JF-17.com : Your Best Resource for JF-17/FC-1 ] ] ;Israeli Elta EL/M-2032 radar: Two delivered to China before the sales stopped under U.S. pressure. At least one was installed on the first Chinese prototypes for testing and evaluation. There are unconfirmed reports that at least one unit was lost when a prototype crashed.;Russian Phazotron Super Komar radar: This is a development of the Komar (Mosquito) radar Russian offered to upgrade Q-5s and J-7s. The Komar itself is a development of the Phazotron Kopyo (Spear) radar offered for the MiG-21-93/98, with newer electronics to drastically reduce the weight by more than a third, from the original 125 kg of Kopyo to 80 kg. With the exception of the sector of scan increased to +/-60° from the original +/-40° of Kopyo, all the rest of the performance parameters of the Komar remained the same as those of the Kopyo. The Super Komar radar has improved capabilities over the Komar in that instead of being able to simultaneously track 8 targets and engage 2 of the tracked like the Komar and Kopyo, it can simultaneously track 10 targets and engage 4 of the tracked. It is reported, however, despite successful tests, that the radar was eventually rejected by both China and Pakistan, because the 60/40 km tracking/engagement range of the Super Komar radar was simply too short, and this was the reason why no more follow-up orders were placed.;Italian FIAR Grifo-S7 radar: Unlike the Russian Super Komar, the Italian radar lacks the capability of multi-target tracking and engagement via semi-active radar homing air-to-air missiles. However, it does have multi-target tracking capability (up to 8) and single-target engagement capability via semi-active radar homing air-to-air missiles and when using active radar homing air-to-air missiles, two targets can be simultaneously engaged. The radar weighs 110 kg and a slotted planar array antenna. This Italian radar has a higher MTBF than the Russian radar, up to more than 220 hours. Furthermore, the ISO-9002-certified radar and electronics manufacturing facility at Kamra of the Pakistan Aeronautical Complex already had vast experience in license assembly / production of earlier Italian FIAR Grifo series radars for the F-7MP/P/PG, and the Italian radar would have an advantage over its competitors should assembly / production licenses be granted like it had been done earlier. This Italian radar emerged as the winner in the competition against the British Blue Hawk and the French RC-400 radars, and it was reported that at least several units would equip the very first JF-17s in Pakistani service.;British GEC-Marconi Blue Hawk radar: This radar is developed from GEC-Marconi's Blue Vixen radar on board the BAE Sea Harrier, with an MTBF of over 200 hours. The radar lacks the compatibility with semi-active radar homing air-to-air missiles, and this was one of the reason it was rejected by Pakistan, but this capability can be incorporated up on customer's request. The radar weighs 104 kg and incorporates a slotted planar array. This British radar remains a potential candidate on export versions of the JF-17, should potential customers require a cheaper alternative to the Italian Grifo-S7 radar.;French Thomson-CSF RC-400 radar: This radar is developed from Thomson-CSF's RDY radar on board the Dassault Mirage 2000, with reduced peak power and maximum range due to decreased size and weight. Like the British GEC-Marconi Blue Hawk radar, this French radar was also rejected by Pakistan for lacking the compatibility with semi-active radar homing air-to-air missiles, but Thomson-CSF had claimed that such capability could be readily incorporated upon customer's request. Another reason for Pakistani rejection of the radar was that, instead of being built to the MIL-STD-1553 standard, the French radar was built to the French DIGIBUS one instead, so extra work must be done for compatibility with MIL-STD-1553, thus increasing the cost. However, for potential customers who had been accustomed with French equipment, this French radar is a logical choice, because although the initial cost for installation is higher, the overall operational cost would be lower when the radar is compatible with all other French equipment in the inventory. For this reason, the RC-400 also remains a potential candidate for export versions of the JF-17 for possible future customers equipped with French systems.
KLJ-7 Airborne Radar
Pakistan Aeronautical Complex
Technical Specifications
The KLJ-7 is an X-band airborne fire-control radar (FCR) uses a mechanically-steered slotted array antenna. The KLJ-7 has multiple modes, both beyond-visual-range (BVR) and close-in air-to-air modes, ground surveillance modes and a robust anti-jamming capability. The radar can reportedly manage up to 40 targets, monitor up to 10 of them in track-while-scan (TWS) mode and simultaneously fire on two BVR targets.
* Frequency : X-band
* A mechanically-steered slotted array antenna
* 14 Operational Modes
* Range more than 100 km
* Total targets tracked: 10 in TWS (Track-While-Scan) mode
* Reliability:
o MTBF (Mean Time Between Failure): 220 hours
o MTTR (Mean Time To Recovery): 0.5 hours
* Weight less than 120 kg
* Composition
o Antenna Unit
o Receiver Unit
o Transmitter Unit
o Processor Unit
o Power Supply Unit
o Auxiliary Transmitter Unit
Head-up display (HUD)
When Chinese Su-30MKK and Indian Su-30MKI were deployed in the humid subtropical and tropical zones, both had experienced significant fogging problems for the Russian SILS-30 HUDs, which was originally designed for arid environment in arctic/subarctic zones, thus a great deal of effort was spent to solve this issue so that the holographic HUD of Chinese origin on JF-17 could be deployed in any environments like its western counterparts. Alternatively, western HUDs can be incorporated directly into the aircraft with little effort due to the modular design and the adoptation of MIL-STD-1553B. The Chinese designed HUD for J-10 has inherited Russian/Soviet tradition of doubling as a radarscope, enabling the pilot to keep his eyes focused at infinity while working with his radar at the same time, a feature originally reverse engineered from MiG-23s obtained from Egypt.Fact|date=August 2008 The Chinese further expanded this function to include the projection of monochrome images from electrical optical pods JF-17 carried, though the colored images from these electrical optical pods would still have to be displayed on the head down displays.
However, many domestic Chinese sources have claimed that based on the feedback of the Chinese, Pakistani and other foreign pilots invited to evaluate the system, the result of such attempt to combine the best of Russian/Soviet and western practices is mixed at the best. While pilots accustomed to Soviet fighters including MiG-23 and MiG-29 welcomed the move, many others were rather not impressed at all, feeling that it was nothing other than merely pasting a transparent map on the HUD, because there was no three-dimensional presentation that would accurately cue a pilot's eyes to look for a target as it appears in a particular direction/angle, so the overall true effectiveness was still rather questionable. Such claimed are supported by the official acknowledgement of the manufacturer when Chengdu Aircraft Industry Corporation publicly announced at 6th Zhuhai Airshow held at the end of 2006 that this function did not come as a standard feature. Furthermore, the unit training device (UTD) presented at the same airshow also lacked this feature. As of early 2008, this function of HUD doubling as a radarscope is marketed by the Chengdu Aircraft Industry Corporation as an extra feature if the customer is willing to pay extra, rather than as a standard feature that comes with the aircraft. However, incorporating this feature might be helpful to attract customers who operates Soviet fighter with the same feature, such as MiG-23 and MiG-29.
Electro-optical systems
JF-17 is full compatible with the Chinese indigenously developed electro-optical (optronics) system originally developed for J-10 by Sichuan Changhong Electric Appliance Corporation. ( [
åš客èÂ¥é"€,ä¼Â业åš客èÂ¥é"€,å¾®åšèÂ¥é"€,社会化èÂ¥é"€,社会化åª'ä½"èÂ¥é"€,社会化ç"µå*ÂÃ¥"¢" 务èÂ¥é"€å¹³å°:ä¼Âåšç½' å››å·é•¿è™¹ç”µå™¨è‚¡ä»½æœ‰é™å…¬å¸] ) The domestic Chinese optronics system is more advanced than the Russian Izdeliye series which lacked the infrared imaging (ImIR) capability. The Chinese system is named as Type Hongguang-I Electro-optical radar (虹光-â… åž‹å…‰ç”µé›·è¾¾), with Hongguang meaning Rainbow Light, and it is a third generation optronics with ImIR capability and utilizes HgCdTe focal array, and received its certification on March 3, 2005 and subsequently entered service. A year later, the system was revealed to Chinese pubilc at the Conference on (Making) Sichuan Province a Strong Industrial Province ( [
?????_?_??_ å››å·å·¥ä¸šå¼ºçœå·¥ä½œä¼š] ). During the conference that lasted from March 26 to March 31, 2006, many cadres attending the conference including the Sichuan provincial (communist) party secretary Zhang Xuezhong (å¼ å¦å¿ ) were shown and operated an actual system demonstrated at the conference. Type Hongguang-I Electro-optical radar is also designed to be compatible with H-6, JH-7, J-8, J-11 and other large aircraft. Based on the limited information released, Hongguang-I optronics has a maximum range up to 75 km, longer than the Izdeliye OLS-27 (36Sh) optronics with 50 km on Su-27, but shorter than the Izdeliye OLS-30 (52Sh) optronics on Su-30.
In comparison to Russian Izdeliye family of optronics such as OLS-27 (36Sh) on Su-27 and OLS-30 (52Sh) on Su-30 that weigh over 200 kg, the Chinese system is much more lighter and compact, but still not enough to be fitted into the nose of the aircraft when the current available radars are installed. As a result, only the podded version can be carried by earlier production models of JF-17. Many domestic Chinese sources have claimed that this is the reason why the radar selection of JF-17 has not yet been finalized, due to the need for a more compact and lighter one while maintaining the same capability at the same time in order to install the domestic optronics system internally like similar systems on F-14, MiG-29 and Su-27.