Sovjetski brodski protivavionski top 25 mm KZAU 2M-3M

[Bozo13]

Nemam puno podataka, osim ovih na tabli, i u temi Torpedni čamci klase "Shershen" postavljen je Shershen iz naoružanja RM Kambodže na kome je top AK-230 zamenjen 25 mm 2M-3M.


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[Bozo13]

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[Bozo13]

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LPB

[Prvačić]

Ovo izgleda radi na principu kratkog trzaja cijevi.
Za li ko kako mu zabravljuje zatvarač?

[Bozo13]

Top ima naziv 25 mm/79 110-PM, i osim dolnek opisa, nisam našao ništa detalnije.

This gun was based upon the 84-KM which was designed in 1943-44.  The specifications for a new weapon were first developed in 1945 and then modified in 1947.  Trials started in 1949 and the gun was accepted into service in 1953 as 110-PM.  Manufacturing in the USSR continued until 1984.
These guns were fed from 65-round belts and the early guns could also be fed by 7-round clips.  The twin mount on which these guns were originally used was designated as 2M-3.  At a later date, the mount was modified into 2M-3M version.  In this later version, the automatics were converted to gas-operation and the firing rate was increased to 470 - 480 rounds per minute during trials.  These guns were nominally rated as being air-cooled, but they were actually cooled with water from a special hose for at least 15 seconds during reloading.

[kumbor]

Kako kaže gornji tekst, prve verzije, nazvane 2M-3 bile su na principu kratkog trzaja, a serijski 2M-3M na principu pozajmice barutnih gasova, hranjene redenikom. Pouzdan top na lakom lafetu, korišćen na skoro svim lakim jedinicama VMF SSSR. Veći brodovi su već početkom 60ih dobili AK-230. Korišćen na brodovima 100tD i više. Posle 1945. zamišljen kao masovno oruđe zaprečne vatre PVO brodova, ali je ubrzo postalo jasno da bi bio neefikasan zbog male kadence i lakog zrna. Sličan japanskom Type 97 25mm (Hotchkiss), ali veće kadence.

[Prvačić]

Sovjeti su imali PAT 25mm M1949, ali on nije kolistio istu municiju kao ovaj top, i ako je čak i dužina čaure ista.

http://www.russianammo.org/Russian_Ammunition_Page_25mm.html#11