This is a question by DeepCBoss on the JOK thread. I know Tyler Perry Flies some big one off airplanes and Canada Man is assembling a big production kit of a n F 14.Tomcat. The europeans do some crazy big stuff.

I know one guy who is building giant space shuttle, this thing is bigger than smallest full scale airplane!

I saw a MB339 at Dubai RC club with 2 x 300s side by side, that's how big it was lol

i have seen video of a demonstration crash landing of a boeing 707,full scale, by r/c. some kind of a fire retardant additive to fuel test.
late 60s-early 70s time frame.

I believe the 2 largest models you can buy right now from proven manufacturers, that can fly in the US under the AMA LTMA2 program are
sports jet The 4m Leonardo that comes it at 157in long with a 142in wingspan
scale jet The Skymaster XXL F-15 comes in at 154in long with a 103in wingspan

6mtr F104