I think they'll have some trouble. Those Russian engines they use aren't cheap, aren't getting any more plentiful, the machinery is getting progressively more s

I think they'll have some trouble. Those Russian engines they use aren't cheap, aren't getting any more plentiful, the machinery is getting progressively more scarce and the folks who designed/built them are either dead or no longer have sufficient knowledge to recreate them. Not to mention the supply of those engines is highly predicated on maintaining a solid relationship with Russia for what that's worth.