It seems not only civil but also military aircraft types have now an extreemly long service life!
Boeing B-52 is a good example: flew first in the early fifties and is still operational.
Also Russian types like the Antonov An-2 and An-8 seem to have the eternal life.
And Russian 'Bear' is operational, like the B-52, for more than fifty years.
Another nice example is the Grumman Hawkeye. On the two photos you see it photographed at Le Bourget in 1965 and in 2009. Location where I took the photos is almost identical, only C-141 cargo plane is now replaced by C-17!
Timespan between two pictures is almost 45 years!!
