To answer your question; upgrade. Note however that the article addresses
only the A model. The B models are newer and were built with improvements
over the As.

The C-5 still has a much better range/payload capability than the C-17.
The C-5 can carry larger payloads.
The C-17's short-field capes are not needed for many missions.
It's a lot cheaper to upgrade.

Curt


"Eric Moore" wrote in message
om...
With the appropriate upgrades, the C-5 can last for another
25 years or so. See:


http://aviationnow.com/avnow/news/ch.../glxy07164.xml

Is it worthwhile to upgrade the C-5's, or should we just build more
C-17's?