Multiple reasons -
1. The original tooling was destroyed long ago - by order of Congress. IIRC, Dick Cheney had more than a little to do with that.
2. Even if the original tooling still existed, modern manufacturing has *seriously* moved on since the 1970s when this plane was being developed. The old way would cost way more and be way slower than modern methods.
3. The original manufacturer and most of the suppliers are long gone.
4. It would likely cost more to make tooling to reproduce the original plane in its entirety using the old techniques than it would to design a new one using new technology.
What we should be doing (and should have been doing since 2000) is designing a brand new, tougher, more heavily armed and armored replacement for the A-10. You can only slap upgrades and rebuilds on an old platform for so long before it becomes a case of diminishing returns.
Hear! Hear!
Add carrier take off and landing capability and have The Marines fly it!
Don't give it to a branch that hates it and wants to be no slower than Mach 2 and no closer than 35,000 vertical feet to any actual combat!
On the original aircraft the pilot sits in a titanium ‘bathtub’ which protects him from most small arms fire. We've got all kinds of head-up-the-ass environmental regulations and who we can buy titanium regulations that would make producing anything today a nightmare.
One more example of how we have allowed liberal idiots to destroy our society and abilities.
You mean like an A-11?