I don't disagree in principle, but MiG fighters already have a bug on the machometer to show the commanded mach from Lazur ground control.
A new wing sweep gauge was needed anyway, so putting the limits there instead of having to make a bespoke variant of the other instruments was more practical.

always relevant

serious answer: a dremel or handsaw should work, then throw it in a vise and file the rough surface flat.
I think it'll hold way better now with the flange taking the force instead of the sealant.

here's a better way:
(do not do this)

i could see it being useful for photogrammetry if it can run continuously. regular old flash tubes are bright enough but are fragile and tend to overheat after like 100 shots.

anyone brave enough to do a supersonic dogfight at 12000m deserves every last deg/s they can get

I've heard there were apparently multiple versions of the instrument. I think it's one of those things that was silently revised throughout the aircraft's service.

(2/2)

изд. 72 is R-73, pretty funny that it's just drawn on the end there.
I guess from the pilot's perspective the launch procedure is the same, so they appended the ML manual so they could reuse it.

that's nuts, what does the color channel come from?

If it has SPO-15 and N003E then it must be 23-19 - as 23-22B has N008E by definition.

As a side note it always hurts a little to see these pristine aircraft completely abandoned, hope at least some of them end up in museums instead of being vandalized.

if I had been there the entire thing would have been yoinked out of the plane

internals:
similar spinning drum mechanism to TP-23