4 pfd. Feldkanone M.1863

4 liberní polní dělo vz. 1863
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Basic cannon description


The barrel is made of cannon (copper: tin = 9: 1), has a caliber of 8 cm, the bore is equipped with six clockwise grooves. It is stored by means of post pins in the wall carriage. Above the mouth is a fly for closer targets, more distant objects were aimed at the fly placed on the right pin. The visor for a shorter distance is located on the so-called bottom frieze. For distant targets, the visor was inserted into the groove on the right side of the ass.


In the following photos of the muzzle of the barrel, there are six visible grooves in the barrel and also a front sight.


Sources:
Ctirad Beneš: On the history of Austrian artillery material since 1863
4 pfd. Feldkanone M.1863 -


4 pfd. Feldkanone M.1863 -


URL : https://www.valka.cz/4-pfd-Feldkanone-M-1863-t55764#203904 Version : 0
More photos of this canyon from Vienna's Arsenal are here:
4 pfd. Feldkanone M.1863 -


4 pfd. Feldkanone M.1863 -


4 pfd. Feldkanone M.1863 -


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Illustration of the 4-pounder gun from the above mentioned publication:
4 pfd. Feldkanone M.1863 -


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1. Cannon
1.1. Barrel

Grooves makes for the entire length of the thread 6/10 speed, i.e., 8,5 degrees. The length of the drawn part is 41 inches (108 cm), the length of the smooth part (in the chamber) 5 inches. Caliber is 3 inches and 1 comma (8.1 cm), will amount to 1 decimal point (2.1 mm). The greatest depth of the grooves is 2 commas. The diameter of the zátravky is 3 dashes and the angle between the axis of the hole and the axis of the head amounts to 83 degrees. The weight of the cannon is 470 pounds.

Sources:
Ctirad Benes: To dějiným the austrian artillery of the material from the year 1863.
URL : https://www.valka.cz/4-pfd-Feldkanone-M-1863-t55764#204053 Version : 0
Body material system vz. # 283; 1863


Due to better use of gas energy, In the first half of the 19th century, constellation was solved in the main 19th century. in the main. This has been solved by plastic deformation of the lead shell in the case of the charged closures (e.g. the Wahrendorf system). st & # 345; ely.
This method could not be used for main charged charges. When charging the main one is unconditionally & # 269; n & # 283; necessary between the table and the bore of the barrel. Expansion rifles have been developed with expansion rifles. compression chairs. This solution was not applicable to heritage. The French La Hitte system, with its trajectories, did not solve this problem much.
In 1862, Baron Lenk of Wolfsberg, the director of the Arsenal Wien armory, designed a wedge. The principle of operation is clear from the pictures taken. Thanks to the size, the bullet can be inserted into the barrel, and after landing on the cartridge, it can be rotated in the direction of the charger with a bayonet lock. The clockwise and wedge surfaces of the table abut the surface of the groove. The roof will melt and only small gaps will remain in the corners of the groove. At the end of the shot, the shot is printed and the groove spread, the persistence of the shot It counteracts the rotational movement and protects it all the time.
4 pfd. Feldkanone M.1863 -


4 pfd. Feldkanone M.1863 -


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1.2. Lafeta


The carriage is wall-mounted. The rear joint of the carriage walls carries a steel eye to connect the wheel chain. On the sides of the carriage in this place are handles used to aim the cannon. Horizontal handles facilitate shading. There is a box for the basic supply of ammunition on the carriage, which also serves as an operator's seat. The rear arch of the seat, which serves as a backrest, could be folded down when aiming. The measuring device is operated by a handle located on the side of the carriage. The wooden six-piece wheels are 51 inches in diameter and weigh 121 pounds. The wheels have 12 spokes. The weight of a complete carriage with a full cabinet is 780 pounds.


Sources:
Ctirad Beneš: On the history of Austrian artillery material since 1863
4 pfd. Feldkanone M.1863 -


4 pfd. Feldkanone M.1863 -


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1.3. Kolesna


On the wheelhouse there is an ammunition box and a seat for 3 crew members. The wheels are 42 inches in diameter and weigh 87 pounds. The total weight of the armed wheel (including ammunition) is 895 pounds.
4 pfd. Feldkanone M.1863 -


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1.4. Střelivo


Ammunition for the 1863 guns consists of:

  • grenades
  • incendiary grenades
  • shrapnel
  • brushes
  • cartridge
  • fuses
URL : https://www.valka.cz/4-pfd-Feldkanone-M-1863-t55764#204344 Version : 0

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4 pfd. Feldkanone M.1863 -


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