The main armor areas have decent protection for that medium-like mobility, about Type 59-level. However, this armor does not mean much against Tier IX and X guns, and the lower front plate has less slope than the upper hull. We can bounce 175 avg pen hits with some extra angle on the UFP and the superstructure, 203 on a good day. At least the side armor allows safe angling up to 25 degrees, 160 avg starts to penetrate the hull sides above that.
The armor is ruined just as
However, our close combat- hugging-abilites are hampered by three major weaknesses of the armor. First, we have a tumor on the right side of the superstructure with a mere 90 mm unsloped armor. Second, the hull roof/engine deck is only 20 mm thick, and thanks to the three times of calibre overmatch rule, a wretch like the 8.0 Panzer IV can penetrate us from the front. Third, the driver’s hatch is very weakly armored too.
Bonus, 105mm AP or HE can penetrate the rear armor through the stern door for full damage. There is a thin line with spaced armor between the hull the superstructure, but it does not offer any extra protection when compared to the latter (~100 mm).
Flanker TD, if there is one such thing
Despite all the aforementioned weaknesses, the Su-101 can be still a deadly medium tank hunter. It can bully lower Tiers and most Tier VIII mediums, but alone the Uralmash-1 is in trouble against same Tier heavies and tank destroyers because they can just outgun it. In the terms of armor and firepower it’s nowhere to the French AMX AC Mle. 1948. The grind will be shorter if you have the all engines from the T-44.
Have mercy, let me play my T95 instead…
In its current state, I have no intention to play the Su-101 on live. The Su-122-54 could be the best thing invented since the enduring light bulb, I don’t care and I haven’t got the stomach for the upcoming Object 263 hype either. If we can unlock the 122 mm BL-9S for in one of the next versions of the game, then we can talk about it. Meaningless buffs like 50 extra hp and faster reload with half a second won’t do jack and sh@t.
Video credits to ZeusMoltar