well, we had a discussion about this aircraft in another forum, all about if this aircraft is what we really need (argentina). When in reality its really a complicated one.
CPFH Block-2:
My reference is going to be the Block-2, since the B3 is not in production and costs for it should be stipulated
a lot higher.
We suppose that X Air Force flies 200 hours per aircraft per year.
After 3 years and a half the engine must be sent to russia for an overhaul (RD-93 TBO: 700hs lifespan 1400hs)(
process takes up 8 months)
After 7 years (1400hs) engine 1 is replaced by engine 2 (new)
After 7 years and a half the aircraft must be sent to Pak/china for its "half life" revision (
the whole process takes up 18 months). Its probable that the engine replacement and the airframe revision are done at the same time.
Pakistan JF-17 Jet Completes First Deep Overhaul in China
After 10 years and a half (2100hs) engine 2 must be sent to russia for overhaul (
process takes up 8 months)
After 14 years (2800hs), engine 2 is replaced by engine 3 (engine 3 could be used since the airframe has only 200hs remaining)
Times:
Airframe: 18 months overhaul/revision in china/Pak
Engines: 2 overhauls for engine 1 (700hs) and engine 2 (2100hs), 16 months in russia total
Engine change: time not specified.
Costs:
cost of overhaul (equal to the 70% of the CPFH)
-Cost of 2 engine overhaul (engine 1 and 2) (witch is 50% of the value of a new engine by the 2 engines), about 3/4M $US
-Cell Overhaul Cost 50% of the aircraft's value, (9/11M $US)+ a new engine (3/4M $US)
Total:
-9/1M $US per overhaul of the airframe+ engine change
-2 engine overhauls 1 y 2 (3/4M $US.)
-1 motor (nro. 2) nuevo (3/4M $US.)
-1 Spare engine (engine 3) 200hs (430/570 thousand $US)
Total overhaul cost: between 15/19M $US
CPFH: 70% overhaul (15/19 M.) + 20% Fuel + 10% others
Total: 21,42/27,15M $US per / 3000 hs.
As you can see, it might be cheap to acquire, but in reality is pretty expensive to run