Search in HRJ Tricks

Related Posts Plugin for WordPress, Blogger...

Saturday, September 8, 2012

NUMBER3:combat aircraft

(I)JF 17Block II



Pakistan and China have recently concluded a final agreement for the manufacture of a second batch of JF-17s. According to well-vetted sources from Pakdef (Eagle Hannan), these 50 jets are the final form of the JF-17s. The aircraft will be manufactured at Kamra, Pakistan, but will be flown to China for additional work. This work is said to relate to a new generation of avionics and sensor suite...


The Block II JF-17 is believed to have AESA radars similar to those observed on the J-10B. The integrated avionics, sensors and EW suite is entirely Chinese and is believed to be at the level of Europes best planes. The AESA radar is a slightly smaller version of the one being utilized for the J-10B. The radar is highly sophisticated and its installation is beyond the present capacity at PAC Kamra and will thus require the aircraft to take a trip to Nanjing, China.

The Block II will be the standard version to be used in the PAF with the older Block Is to be retired after the end of production for the first 150 aircraft. This suggests that the structural changes needed to convert the Block Is to Block II standard are significant, suggesting considerable changes to the revised edition. The following are believed to be some of the key changes:

1. AESA radar

2. Comprehensive upgrades for low RCS profile including cockpit glass, RAM paint, refined structure, completely new nose structure for AESA, significant increase in the use of composites and retractable refueling probe. 5/24/2011

3. Awaited integration of A-Darter missiles from Brazil / South Africa with HOBS capability and Brazilian HMS. 

4. The BVR missile is the SD-10B which has been found more than a match for the AMRAAM-120 C5s. An unknown Meteor class missile is in the works beyond the SD-10Bs.




(II)J-10(export version)/fc20 

The J-10B is a modified variant of the J-10 multirole fighter aircraft, with modifications in airframe and avionics. Chengdu Aircraft Corporation (CAC) of AVIC began to develop a follow-on variant of its J-10 fighter around 2004/05. A J-10B prototype reportedly made its maiden flight in December 2008. Photos of the aircraft began to emerge on the Chinese Internet in March 2009. Once commissioned, the J-10B is likely going to become the standard for later J-10 productions.
Rampless Inlet

The J-10B features a chin-mounted diffuser supersonic inlet (DSI) air inlet. The traditional rectangle-shape air inlet on the J-10 requires a large moveable inlet ramp to generate a rearward leaning oblique shock wave to aid the inlet compression process. The ramp sits at an acute angle to deflect the intake air stream from the longitudinal direction. The air inlets comprises many moving parts, which increases the aircraft’s weight and radar reflections.

The newly designed rampless inlet, first tested on the FC-1/JF-17 fighter design by Chengdu, employs a one-piece bump at the top of the inlet replacing the movable ramp. This eliminates all moving parts on the inlet, lightening the overall weight and reducing the aircraft’s radar signature.

Electro-Optic Targeting System

The J-10B has been added with an electronic-optic targeting system (EOTS) commonly found on all fourth-generation Russian fighter aircraft such as Su-27 and MiG-29. Placed forward of the cockpit canopy to the right, the system comprises an infrared search and track (IRST) sensor and a laser rangefinder, which can detect enemy targets passively without requiring to turn on the fire-control radar, thus reducing the chance of the aircraft being detected. The EOTS of the J-10B is likely based on a Russian design.
Tailfin ECM Pod

The upper edge of J-10B’s tailfin is curved, in contrast to the straight-edged tailfin of the J-10. A large fairing is added to the tip of the tailfin to accommodate electronic warfare and countermeasures (EW/ECM) equipment.

ECM Antenna Array

The J-10B has four black antenna arrays attached externally to the fuselage, a larger one on either side of the cockpit and a smaller one on either side of the rear fuselage near the engine nozzle. The specific purpose of these antennas is unknown but they are thought to be for electronic countermeasures purpose.

No comments:

Post a Comment