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 Cannons (2xI), 5 MG
 * since 1920s – 100 mm howitzer (1xI), 75 mm Cannons (2xI), 4 MG
 * since 1930s – 75 mm Guns (1xII and 1xI), 2 MG

Kraków, Wilno

 * 100 mm wz 1914/19P howitzers (x3)
 * 7.92 mm Maxim MG (x3)
 * since 1939: 13.2mm Hotchkiss AAMG (x2)

Zuchwała, Zawzięta, Zaradna

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

LKU 16, 17, 18, 19

 * 37 mm Puteaux Cannon (x1)
 * 7.9 mm Maxim 08 Heavy MG (x1)

KU 21, 22, 23, 24

 * 37 mm Puteaux Cannon (x1)
 * 7.9 mm Maxim 08 Heavy MG (x1)

LKU 25, 26, 27, 28, 29

 * 37 mm
 * 7.9 mm MG

CKU Nieuchwytny

 * 40 mm Bofors Antiaircraft Cannon
 * 37 mm Puteaux Cannon
 * 7.9 mm Hotchkiss Heavy MG

KU 30

 * 13.2 mm Hotchkiss 03 Heavy MG (1×2)

KU-6

 * 37 mm Cannon