How much does the Russian plans cost to build and maintain and how much do they water them down compared to the F-35s the US will be exporting. I would be more worried about our allies turning to them. If the Russians can sell a product that can go toe to toe with a water down F-35 for less it becomes a tougher sell.
Edited, Mar 21st 2012 4:30am by RavennofTitan