SU1946 stands for Simple Universe 1946, it is a series of late-WWII (or prototypes) planes plus some fiction. Planes in this series would have significantly better performance than their historical counterpart, and would receive a "Z" in their names to distinguish them from other, more accurate replicas.

This is the Simple Universe version of the Messerschmitt Me 262, set to be sold to the Nationalists in China for the Chinese Civil War. The HGII uses a 35 degree swept wing and a V-shaped tail, and in our Simple Universe story, it caused the Communists to build the Su-9 KZ with semi-active missiles to counter them.

Performance:
Max Speed: 1865 km/h at sea level
Agility: approx. 11.21 seconds to turn 360 degrees @ 1710 km/h

Armament:
4x 30mm MK213 revolver autocannons (150 dmg, 20 rounds per second, 900 m/s muzzle speed)
9 pylons for bombs and rockets. (maximum advisable load is about 16 tons)
Note: I know the muzzle speed is faster than what you would find in all the data about MK213, but it just doesn't make sense for MK213 to have similar muzzle speed with the MK108 when it uses much larger rounds (30x146 mm compared with MK108's 30x90) and has much longer barrel.
Note2: the 1200 RPM firing rate may be faster than your model update speed, causing some bullets to not be registered. You can use the Overload mod, adjust the outputs, then use USS Tiny to test it out (it has 60000 HP), usually the effect should be minimal.
Note 3: some pylons are pretty close to each other, you might want to watch out when loading some particularly large bombs/missiles as overlapping could cause premature explosion when one of them are fired.

AG1: Tail hook
AG2: Drag chute

CAUTION! Requires the Hispano-Suiza 20mm mod to work properly. If your problem persists even with the mod, try using the Overload and Fine Tuning mod as well.

CAUTION! Due to the fact that we have extremely overpowered engines on SU1946 planes, you need to be extra careful when accelerating these planes. Suggest pushing your stick forwards and do not exceed 20% throttle when taking off. Also, I do not advise flying this plane with keyboard only, but it is entirely flyable with mouse joystick.