View source for 20/25TP

{{short description|Polish medium tank design.}}
{{Ref expand|date=July 2018}}
{{Infobox weapon
 |name=20/25TP
 |image=
 |caption=KSUS 20/25TP design
  |origin=Poland
 |used_by=
 |type=[[Medium tank]]/[[Heavy tank]]
 |is_vehicle=yes
 |service= 
 |wars=
 |designer= 
 |design_date=
 |manufacturer=
 |unit_cost=
 |production_date= 
 |number=
 |variants=
 
 |spec_label=design values
 |weight=22 tonnes ''KSUS version''<br /> 23 tonnes ''BBTBr.Panc.''<br /> 25 tonnes ''PZInż version'' 
 |length={{convert |7.3  |m|ftin|abbr=on}}
 |width={{convert|2.6 |m|ftin|abbr=on}}
 |height={{convert|2.8 |m|ftin|abbr=on}}
 |crew=5 or 6 
 |armour={{convert|35|-|80|mm|abbr=on}}
 |primary_armament= 1 × 70&nbsp;mm ''KSUS version''<br /> 1 × Bofors 75&nbsp;mm  ''BBTBr.Panc. version'' <br /> 1 × 75 mm wz. 1922/1924 ''PZInż version''
 |secondary_armament=3 × 7.92 mm [[Ckm wz.30]] ''KSUS and BBTBr.Panc. version'' <br /> 1 × 7.92 mm [[Ckm wz.30]] ''PZInż version''
 |engine=gasoline engine
 |engine_power=2 × {{convert|300| hp|abbr=on}} ''KSUS version''<br /> 1 x 500 hp ''BBTBr.Panc. version'' <br /> 1 x 400 hp ''PZInż. version''
 |transmission=
 |fuel_capacity=
 |pw_ratio=27 hp/tonne ''KSUS version''<br /> 22 hp/tonne ''BBTBr.Panc. version'' <br /> 16 hp/tonne ''PZInż. version''
 |suspension= Quarter-elliptical [[leaf spring]] suspension
 |clearance=
 |vehicle_range=
 |speed= {{convert|45| km/h|abbr=on}} ''KSUS version''<br /> 40 km/h ''PZInż. version''
}}

The '''20/25TP''' ('''{{lang|pl|dwudziestotonowy polski/dwudziestopięciotonowy polski}}'''; "20-tonne Polish/25-tonne Polish") was a Polish [[medium tank]] concept that was never built. There were three projects designed by KSUS and [[BBTBr.Panc.]] and [[Państwowe Zakłady Inżynieryjne|PZInż]] which even managed to build a wooden model of it. The name 20/25TP is not official; it was created by the author [[Janusz Magnuski]] analogously to nomenclature used for other Polish tanks of that period. According to different classification it could be [[medium tank]] or [[heavy tank]].

==Design==

KSUS project was in two variants, assuming the usage of 75&nbsp;mm anti-aircraft gun and 35&nbsp;mm armor. As well as the main turret, there were two turrets at the front of the vehicle equipped with heavy machine guns. There was another heavy machine gun in the main turret. Weight of the tank was 22 tonnes. The drive consisted of two petrol engines of 300&nbsp;hp each. The ability to cross the ditches reached 2.5 meters, wading depth reached up to 1.2 m. The tank would have a length of 7.3 m, width 2.6 m, height 2.8 m Assumed speed of travel on the road was {{convert|45|km/h|abbr=on}}. The crew was six people.

The tank designed by BBTBr.Panc. was armed with a 75&nbsp;mm Bofors gun coupled to a 40&nbsp;mm Bofors L/60 cannon. The remainder of the armament was three heavy machine guns. It would have 50&nbsp;mm armor with a total weight of 23 tons. The project had a 500&nbsp;hp engine for a planned top speed of {{convert|40|km/h|abbr=on}} with the crew of five people. As the only one turret.

PZInż project was equipped with a 75&nbsp;mm anti-aircraft gun wz.22/24, one heavy machine gun and 60&nbsp;mm armor. It was also the heaviest - the weight would be 25 tons.

== See also ==
* [[Neubaufahrzeug]], a similar German tank
* [[T-28 (medium tank)|T-28]], a similar Soviet tank
* [[Polish armaments 1939-1945]]

==Bibliography==
*{{in lang|pl}} Mała Encyklopedia Wojskowa, Wydawnictwo Ministerstwa Obrony Narodowej, wyd. I, W-wa 1967, T. I, str. 152
*{{in lang|pl}} Nowa Technika Wojskowa 9/2006

{{WWIIPolishAFVs}}

{{DEFAULTSORT:20 25tp}}
[[Category:World War II medium tanks]]
[[Category:World War II armoured fighting vehicles of Poland]]
[[Category:Tanks of Poland]]