Vessels of Polish Riverine Flotilla

River Fleet (Flota Rzeczna)

Warszawa (Warsaw), Horodyszcze, Pińsk, Toruń
built in 1920 (Stocznia Gdańska), displacement 110/126,5t
 * since 1920 – 105 mm (5 cm) Cannons (2xI),5 MG
 * since 1930 – 100 mm howitzer, 75 mm Cannons (2xI), 4 MG
 * since 1938 – 75 mm Guns (1xII and 1xI), 4 MG

Kraków

 * 122 mm Cannons (x2)
 * 145 mm (3 cm) Cannons (x2)

Wilno

 * 100mm wz 1914/19P (3 cm) Cannons (x3)
 * 75 mm (3 cm) Cannons (x2)

Zuchwała, Zawzięta, Zaradna

 * 100 mm wz.14/19 Cannon (x1)
 * 37 mm Puteaux Cannon (x1)
 * 7.92 mm Hotchkiss Cannon (x1)
 * 7.62 mm Maxim wz Heavy MG (x3)

LKU 16, 17, 18, 19

 * 37 mm Puteaux wz. 85 Cannon (x1)
 * 7.9 mm (1 cm) Maxim 08 Heavy MG (x1)

KU 21, 22, 23, 24

 * 37 mm Puteaux wz. 85 Cannon (x1)
 * 7.9 mm (1 cm) Maxim 08 Heavy MG (x1)

LKU 25, 26, 27, 28, 29

 * 37 mm
 * 7.9 mm (1 cm) MG

CKU Nieuchwytny

 * 40 mm Vickers Cannon (x1)
 * 40 mm Bofors Antiaircraft Cannon
 * 37 mm Puteaux Cannon
 * 7.9 mm (1 cm) Hotchkiss Heavy MG

KU 30

 * 13.2 mm (2 cm) Hotchkiss 03 Heavy MG

KU-6

 * 37 mm (1 cm) Cannon