My guess is this thing broke up and was put back together. Its just a shell now, the inards are likely gutted. It makes no sense to build a mock up as it would be obvious to the experts and put in doubt if they have it at all.

Perhaps for JF-17 NG upgrade. Also a potential candidate for UCAV projects.

You seem to have not read my original post. I described a range of PGMs which are designed for use against AFVs, & would be particularly effective against massed formations.

You seem to be saying the A-5 is entirely relevant, so long as it gets Brimstone like systems.

Couldn’t they have used blimps?

Newish photo.

Is that with the tube or not?

w/o tube, from end of radome to end of engine, it is 306 pixels, which would put the J-20 at 20.3m

with tube, it is 318 pixels, puts the J-20 at 19.5m

Presumably w/o tube, that plane is not that small. There are some sources which claim the FC-1 to be slightly longer, but it’s a matter of a few inches.

Seems to me it’s now clear the J-20 is clearly well under 21.0m, likely under 20.5m.

using an image editor
J-7 is 297 pixels (from tip of radome no tube to end of tail) and is listed as 14.885m in length

The J-20 is 444 pixels (from tip of radome no tube, to end of tail). thus using these.. it comes out to 22.25m or 72ft 11.90 in.. which rounds up to 73 feet.

14.885m is the length with nose probe extended. The F-16 is about that long. There’s no way the J-7 is Viper size. According to this website the J-7 is 13.46 meters long without probe.

http://www.vectorsite.net/avmig21_2.html

Using your calculations J-20 is 20.12 meters long.