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.
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.
A significant export order has been secured and an entire squadron is being dedicated for training and familiarization of foreign pilots (Source: Eagle Hannan, Pakdef).