Tier VI Medium Tank Poland

B.U.G.I.

Tank ID 3985

Vehicle description

Wargaming Tankopedia

The B.U.G.I. uses the first letters of the last names of the engineers who developed this project (Bujnowicz, Ulrych, Grabski, and Iwanicki). The engineers took the concept of the KSUS II medium tank but adjusted the new vehicle to feature a one-turret design. The project was sent for consideration during the Grudziądz conference in 1938–1939. The project was finalized in May 1939 in the Armed Forces Training Center in Modlin. In mid-August 1939, the engineering group presented the vehicle concept and blueprints. However, further development was discontinued due to World War II.

Description from the Wargaming Tankopedia · Language selected automatically

Technical profile

Standard configuration

Hit points

870

Weight

38.0 t

Forward speed

55 km/h

Reverse speed

11 km/h

View range

340 m

Signal range

430 m

Armour

	Front	Sides	Rear
Hull	55	40	40
Turret	60	40	40

Engine: Maybach VL-2 ZTB · 630 hp

Radio: RKB C

Armament

Standard gun and ammunition

75 mm wz. 36/37

Calibre 75 mm

Reload time 4.3 s

Aiming time 2.1 s

Dispersion 0.38

Rate of fire 13.95 /min

Ammo capacity 74

Shell types

AP · armour-piercing Damage 113 / 150 / 188

Penetration 111 / 148 / 185 mm

APCR · composite rigid Damage 113 / 150 / 188

Penetration 131 / 175 / 219 mm

HE · high explosive Damage 131 / 175 / 219

Penetration 29 / 38 / 48 mm

Marks of Excellence

Damage thresholds

Combined Damage (Damage + Assist + Tracking)

Combined damage

1 Mark ≥ 65 %

1,349

2 Marks ≥ 85 %

1,963

3 Marks ≥ 95 %

2,535

Approximation based on WN8 expected values — not an official Wargaming figure.

WN8 Expected Values

XVM reference

XVM Expected Values for WN8 calculation (per battle)

Per battle (avg.)

Avg. damage 818

Avg. spotted 0.97

Avg. kills 0.94

Avg. defence 0.66

Exp. win rate 52.70 %

Community stats

Measured, not estimated

Average across every profile stored on WG-Watch — real battles instead of expected values.

Win rate

55.99 %

Avg. WN8

2,091

Battles

7,060

As of Aug 31, 2026

Rank 18 of 91 at Tier VI

Best players on this tank

By WN8

From the stored profiles, minimum 50 battles on this vehicle. Updated daily.

#	Player	WN8	Battles	Win rate
1	Dakillzor eu	6,208	61	75.41 %
2	Xilense eu	5,782	60	63.33 %
3	Rasierer32 eu	5,652	61	72.13 %
4	Vavanne__ eu	4,999	72	75.00 %
5	Yzne eu	4,981	96	68.75 %
6	skill4ltu eu	4,828	91	74.73 %
7	marty_vole eu	4,685	93	69.89 %
8	swiss1809 na	4,355	78	75.64 %
9	3rdMarker eu	4,017	86	62.79 %
10	Ursid eu	3,845	83	81.93 %