| OSU-35K | |
|---|---|
 OSU-35K system dispalyed at MSPO 2023 defense expo | |
| Type | close-in weapon system |
| Place of origin |  Poland |
| Service history | |
| In service | 2022-present |
| Used by |  Polish Navy |
| Production history | |
| Designer | Military University of Technology |
| Designed | 2012 |
| Manufacturer | PIT-Radwar |
| Specifications | |
| Mass | 3300 kg (without ammunition) |
| Length | 4.85 m |
| Height |
|
| Crew | Unmanned |
| Shell | |
| Caliber | 35×228mm |
| Barrels | 1 |
| Action | Gas-operated |
| Elevation | −10° / +85° |
| Traverse | 360° (unlimited) |
| Rate of fire | 550 rpm |
| Effective firing range | 3000-5000 m |
| Feed system | Dual feed, 2×100 rounds belt |
The OSU-35K (Polish: Okrętowy System Uzbrojenia 35 mm - 35 mm Naval Weapon System) is a Polish naval remote weapon station and a close-in weapon system manufactured by PIT-Radwar. Armed with a 35 mm Oerlikon KDA autocannon, it is meant to defend surface combatants against various types of maneuvering aerial targets such as anti-ship missiles, unmanned aerial vehicles, conventional and rotary-wing aircraft, It can also engage surface and coastal targets.[1] It is in service with the Polish Navy on the Kormoran II-class (Project 258) minehunters and is planned to equip the Wicher-class (Project 106) frigates.[2]
- ^ "35 mm automatyczna armata morska KDA z zabudowanym na okręcie systemem kierowania ogniem wykorzystującym Zintegrowaną Głowicę Śledzącą ZGS-158 wykonaną w wersji morskiej wraz ze stanowiskiem kierowania ogniem – Wydział Mechatroniki, Uzbrojenia i Lotnictwa WAT" (in Polish). Retrieved 2024-10-20.
- ^ Ciślak, Jarosław (2024-09-10). "Mieczniki z innymi rakietami. Zmiany na polskich fregatach [ANALIZA]". defence24.pl (in Polish). Retrieved 2024-10-21.