411 REFERENCE · Wikipedia
20/25TP
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
Polish medium tank design
July 2018
20/25TP
KSUS 20/25TP design
Poland
Medium tank/Heavy tank
yes
design values
22 tonnes KSUS version 23 tonnes BBTBr.Panc. 25 tonnes PZInż version
7.3 m ftin on
2.6 m ftin on
2.8 m ftin on
5 or 6
35 - 80 mm on
1 × 70 mm KSUS version 1 × Bofors 75 mm BBTBr.Panc. version 1 × 75 mm wz. 1922/1924 PZInż version
3 × 7.92 mm Ckm wz.30 KSUS and BBTBr.Panc. version 1 × 7.92 mm Ckm wz.30 PZInż version
gasoline engine
2 × 300 hp on KSUS version 1 x 500 hp BBTBr.Panc. version 1 x 400 hp PZInż. version
27 hp/tonne KSUS version 22 hp/tonne BBTBr.Panc. version 16 hp/tonne PZInż. version
Quarter-elliptical leaf spring suspension
45 km/h on KSUS version 40 km/h PZInż. version
The 20/25TP (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 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 mm anti-aircraft gun and 35 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 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 45 km/h on. The crew was six people.
The tank designed by BBTBr.Panc. was armed with a 75 mm Bofors gun coupled to a 40 mm Bofors L/60 cannon. The remainder of the armament was three heavy machine guns. It would have 50 mm armor with a total weight of 23 tons. The project had a 500 hp engine for a planned top speed of 40 km/h on with the crew of five people. As the only one turret.
PZInż project was equipped with a 75 mm anti-aircraft gun wz.22/24, one heavy machine gun and 60 mm armor. It was also the heaviest - the weight would be 25 tons.
See also
Neubaufahrzeug, a similar German tank
T-28, a similar Soviet tank
Polish armaments 1939-1945
Bibliography
pl Mała Encyklopedia Wojskowa, Wydawnictwo Ministerstwa Obrony Narodowej, wyd. I, W-wa 1967, T. I, str. 152
pl Nowa Technika Wojskowa 9/2006
Category:Medium tanks of World War II
Category:World War II armoured fighting vehicles of Poland
Category:Tanks of Poland
Category:Państwowe Zakłady Inżynierii vehicles