Is it necessary to demonstrate everything for 'Fanboys' who are debating at an internet forum .... ???
Are we that important ..... ???
Plz connect the dots
1- We had this information of 98KN available since Dubai Air show (Klimov poster), but somehow 'we' choose to ignore it at that time for 'further confirmation'.
2- We know that Pakistan has rejected the offer of upgraded RD-93MA in favor of current engine.
3- I think ACM Tahir Rafiq Butt (or some other PAF official) on record express the satisfaction of PAF with the performance of RD-93 engine in an interview.
4- 200% stress test of JF-17 in China without the change of engine was the indication of 'utilized' engine power, but we at the forum took it as the indication of upgradation for block-II.
5- Before the stress test in China, if we recall the incident of only crash of JF-17 flying above the 'official' Mach limit of 1.6 at that time.
So in short we can say that it was our failure to connect the dots available within the bigger picture.
1). Klimov poster only says the thrust range.. That means engine can be upgraded to 98 KN without changing its engine core (advanced metallurgy is the key)..That doesn't mean jf17 current engines are 98KN..
You can visit Klimov website.. It clearly says now the RD33 family consists of 8000-9000kgf engines .. Also that high thrust 9000 kgf (88 KN) RD33 family engine is most latest improved version RD33MK used in mig 35[can be upgraded to 98KN].. The russians really boasting of the 7% thrust increase in RD33MK, which is done by the use of cooled blades made of latest tech modern materials including composites..
China has no authority to upgrade RD33 engine.. But can repair, overhaul it.. So they can overclock the engine to a higher thrust (may be upto 94-95 KN) but in an expense of other performance especially its service life..
2).Russians offered improved engine clearly means proposed RD33MA is better than current RD93.. Value for money (values added by the money spending) or cost may be the reason..
3). PAF have no more options ( money and suppliers).. So they are satisfied..
4). How can an aircraft tested 200% stress using an engine?? Generally done as follows..
During stress tests, parts of the airplane are pushed, pulled, and twisted by hydraulic jacks. This series of tests called “destruct sequences.”
The tests were incremental. First, they put to “limit load.” This is a test that simulates the most extreme conditions expected in the life of the airplane..
These test tests positive and negetive maneuverability, emergency landing, extreme maneuvers,engine out response etc..