RedMercury
Junior Member
Last paragraph almost completely ripped from Xinhui's blog. Shameless.
China Flanker Thread II
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SteelBird
Colonel
Though I can't confirm the credibility of the above article; however, it sounds quite credible to me. Consider the first Su-27 China bought is about 20 years old. At that age, for a Russian fighter, it's about time to get it retired. I read somewhere a long time ago, Russian fighters usually don't last the service life they promise. So, nearly 20 years is already long service life for them.
The one thing missing in that detail is that in fact, the first bunch of Su-27s got overhauled sometime in 2003-2004 and there are pictures. Its probably they already reached their 5000 flight hour life by then, and only extended through that overhaul.
Please note the possibility that the planes, belonging to the 19th Division, might get replaced by other J-11s. Its likely they're getting the J-11s passed down from the 1st Division, these planes in turn replaced by the J-11B.
Please note the possibility that the planes, belonging to the 19th Division, might get replaced by other J-11s. Its likely they're getting the J-11s passed down from the 1st Division, these planes in turn replaced by the J-11B.
Londo Molari
Junior Member
you'd think flankers wouldn't be retiring when J-7s and J-8s are still in service
unless these particular flankers were very heavily used, or unless Russian aircraft have much shorter life spans than Chinese aircraft.
unless these particular flankers were very heavily used, or unless Russian aircraft have much shorter life spans than Chinese aircraft.
SteelBird
Colonel
Less is heard about the rotating of the J-7 and J-8, but that doesn't mean they don't retire old aircraft and acquire new ones. How long are service lives of the J-7 and J-8? How often they fly their J-7 and J-8? Do they expand service lives of those aircraft by changing critical components?
Considering all those first generation J-8Is still in service with the 24th Division. When was the first J-8Is ever came out?
SteelBird
Colonel
I can't imagine they are still flying those J-8I. How old are they? Are they still air worthy? I really don't hope they'll be the next to gain the next-name "flying coffin".
Soviet era combat jets were fed very high octane fuel to push as much performance out of them as possible in a kamakazi clash with NATO. Extended service life wasn't a high priority for the aircraft's frame or engines:
Because of the Cold War "push and recover" logistics system, the Soviet war machine provided forward area support on a continual wartime basis. New aircraft and/or depot refurbished aircraft were programmed into the forward areas at a replacement rate consistent with a strict utilization-replacement cycle. Just about the time the aircraft would reach a minimum point in flight hours remaining, that is, the hours just above the required amount needed to actually fight a war (which was always kept on the aircraft), they would pull it out and send it back to the factory for a total refurbishment. This process was logical to the Russian military mind, both as a convenience and a safety factor, since combat generally afforded the same results and it guaranteed maximum production rates back home with adequate spare airframes. Spare aircraft were actually stockpiled at bases to ensure no problems in the readiness of the units by unforeseen losses. This type of replenishment assumed that almost all single engine failures would result in the loss of the aircraft. In fact, many single engine failures in the MiG-29, did end in the ejection of the pilot and not in the recovering the aircraft. This is one of the reasons why such careful engineering was put into the ejection systems. Redundancy of systems, focused on survival not just the completion of the mission, was only recently incorporated into Russian primarily because of the requirements that accompanied the export of their MiG-29's and Su-27's.
Brassey's reports that the MiG-29 airframe service life is 2500 hours which could represent a 10 year lifespan at 250 hours per year (20.8 hrs/month).
It wasn't until the post-Cold War era that the Russian military industry had to improve the aircraft's longevity for export customers. The MiG-29 SMT was reported to have improved airframe lifespan of 4,000 hours, and the MiG-35 & Su-35 have reinforced titanium airframe that brings lifespan up to 6,000 hours.
Assuming China's early Su-27's were built to late Cold War era specs, the aircraft probably needs more frequent overhauls than newer planes.
We still keep getting recent pictures of the group flying these planes. Its neat---the planes are all clean white, and shiny, all well maintained. These planes should start around the early eighties, predating even the J-8II.
But alas, the rumors is that this division is now being targeted for a J-10 conversion. So buh bye old birds.
Old J-7s are probably on the way out too, but remarkably a regiment of the J-7C/D is still in active service. That's the J-7 variant that looks more like the regular MiG-21 (MiG-21MF in this case). These planes came into service around the late eighties.
I do know J-7E has already started decommissioning. J-7Es were introduced to the PLAAF around 1991, just a year before the Su-27SKs did.
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