Hi,
Former Air Force fighter pilot here.
Many 1950s-era fighters are now owned by civilians. Very few if any newer ones are; the cost is simply beyond belief and frankly the 1950s planes have enough performance to scare/kill the typical middle-aged fat-cat pilot-wannabe.
Fairly modern (1970s-1980s) jet trainers are another common toy; the performance is still plenty hot and the costs aren’t nearly as crazy. Google for [L-19 airplane] and you oughta find some examples.
As to “demilitarization”, the laws are quite detailed as to what must be taken off. All the weapon pylons, the wiring, the computers, etc. Anything connected to weapons & fighting. That’s not too hard to do on a 1950s plane where all the systems are discrete.
But on a modern fighter, there’s an interegated network of computers and the ones that provide your instruments and navigation are also the ones which provide the weapons capability. So short of writing new software, there’s no way to remove the weapons capability to the government’s satisfaction.
That essentially forecloses those aircraft from ever being in civilian hands, at least until the details of the regulations are changed to permit the software to exist as long as there’s no wiring leading to bomb racks/missile rails to give the software any teeth.
BUT … given the ever-higher importance of software as the true differentiator of combat capabillity, regs will probably be changing in the opposite direction.
My supposition is that the Viet Nam-era fighters & current-era jet traininers are the last ones we’ll ever see in civilian hands. F-4, T38, BAE Hawk, Aeromacchi 229, Volochody L19 and that’s probably about it.
Somebody asked about the Blue Angel’s aircraft. I can’t speak directly to that, but I was stationed at Nellis AFB, in a unit just down the street from the Thunderbirds.
They had F-16s, just like we did. The only difference was their airplanes had the gun removed to make room for an oil tank to make their white smoke, and they left the weapons pylons off. That and the shiny paint.
On an F-16 the pylons are removable with a few bolts and a couple of electrical connectors, and different pylons are attached to different places (“stations”) on the wings and fuselage depending on the mission.
All the wiring and computers and everything else stayed the same. Yes, that meant some wires weren’t used every day, and that’s “wasteful”, but not nearly was wasteful as the cost of the engineering effort to determine what to remove and to develop the procedures to reliably store & reinstall all of it if/when needed.
They claimed they could put their 7 airplanes back to wartime capability in a couple of days. I’d bet they could do the work that fast, but they might be chasing accumulated gremlins in the wiring for weeks. Unused parts have a way of failing silently that isn’t apparent until you try to use them again.
Removing and reinstalling the gun was a fairly routine operation; some repairs to the regular combat aircraft needed the gun pulled out. A lot more involved than an oil change, but nothing 3 guys with the right tools and training couldn’t do in a couple of hours.
Putting it back in was a similar job but then it had to be aligned properly with the jet (“bore-sighted”) and that took a couple extra hours with some lasers. They still shot poorly for a few missions after a gun change and needed some tweaking to get the gun settled in and tightly aligned with the aiming systems.