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BR-18 – howitzer special power 305 mm sample 1939 of the year


		BR-18 - howitzer special power 305 mm sample 1939 of the year

Like the 210-mm gun Br-17, 305-mm howitzer BR-18 samples 1939 year has been developed "" Barricades, "" based on the Skoda-Werke AG design documentation of the company plant design bureau. Both artillery systems are so-called "duplex" - superimposed on the uniform carriage 210 mm gun barrel length 49,6 calibres or 305-mm howitzer barrel length 22 caliber.


		BR-18 - howitzer special power 305 mm sample 1939 of the year

This approach to the creation of artillery systems significantly shortens the design of new tools and facilitates the development of their production. Prototype 305 mm howitzer, who had a factory designation Br-18, It was presented at the field testing in September 1940 g. Carried out before the end of November 1940 g. tests gave positive results in general. In order to accelerate the launch of mass production of howitzers in field tests were announced Polygon-troop and howitzer recommended to adopt under the designation 305-mm howitzer sample 1939 of the year. Barrel howitzer is a piece with a conical liner, replacement which could be made not only in the factory or in an artillery workshop, but also in the field. The length of the liner was 6295 mm.
In the barrel was performed 68 rifling constant slope, the length of the threaded portion was 16.6 caliber. The barrel is locked produced piston two-stroke bolt with an obturator. Mass barrel with the shutter reached 12 400 kg.


		BR-18 - howitzer special power 305 mm sample 1939 of the year

Flitches howitzers BR-18 was similar to a gun carriage 210 mm gun Br-17, However the lifting mechanism modified so, it implements guidance provided in the angle range of -4 ° to + 70 ° Precepts instructed to fire at elevation angles of + 45 ° to + 70 °, since at lower elevation angles stability of the system was not provided. The horizontal howitzer is induced in the sector ± 45 °.
Shooting from howitzers conducted rounds of separate loading kartuznogo. Applied charges of Soviet and Czechoslovak production. The shells were only in Czechoslovakia - demolition and concrete wallpaper. Their basic characteristics are listed in Table. When firing the full charge explosive projectile had an initial rate 530 m / s and can hit targets at ranges of up to 16 500 m. Betonoboynymi projectile an initial velocity 410 m / s was the highest firing range 13 100 m. 305-mm explosive projectile on sandy ground forms a funnel depth of 2-2.5 m and a diameter of 5.5-8 m. Thickness punctured them vertical brick wall was 2 m.


		BR-18 - howitzer special power 305 mm sample 1939 of the year

One hit MI-1063 betonoboynymi projectile at a rate of 330-335 m / s and an angle of incidence greater than 60 ° destroyed reinforced concrete ceiling thickness 2 m, at a speed 255 m / s and an angle of 60 ° at two results in one place destroyed reinforced concrete ceiling thickness 3 m. At angles of elevation rate of about 70 ° was 1 shot for 2,5 minutes, at angles of 45 ° - 1 shot for 2,1 minutes.
305-mm sample howitzer 1939 year used by the Red Army in the battles at the final stage of the Great Patriotic War, when, as he recalled Marshal Artillery ND. Yakovlev, the implementation of breakthrough enemy defenses "sounded" great voices "203-mm howitzers and 280-mm mortars. And sometimes, blocking everything and everyone, It comes in and 305-mm howitzer ". We must pay tribute to Marshal. he put extremely accurate - 305 mm howitzer intervene only occasionally, since due to the fitting of the Czech prototype design for the technological features of the precious time has been lost "Barricades" plant, and before the war it was possible only to make 3 such howitzers. And imported shells were laid up slightly.


		BR-18 - howitzer special power 305 mm sample 1939 of the year

Tactical; Technical characteristics gaubitsы Br-18

Caliber, mm……………………………………………………………………305
barrel length, calibres …………………………………22
The highest elevation angle, city…………………………….+70
angle of declination, city ………………………………………………….-4
Horizontal angle of fire, city………………………………90
Weight in firing position, kg…………………………………..43 000
explosive projectile Weight, kg………………………………………..330
The initial velocity of the projectile, m / s……………………………..530
Most firing range, m ………………… 16 500

Photo howitzers Br-18 in the Artillery Museum in St. Petersburg


		BR-18 - howitzer special power 305 mm sample 1939 of the year

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