• Weapon Systems, Semester 2, position 2

Introducing of students to the basic elements of the automatic weapons. Formation of the system of differential equations that describe the movement of elements of the mechanisms of automatic weapons during the firing cycle. The study of methods for solving these differential equations. Preliminary design of various systems of automatic weapons.

Mastering the calculation of basic parameters that characterize the function of various systems of automatic weapons. Acquiring the ability of students to create their own software tool for preliminary design of an automatic weapon. Qualifications for the design of individual elements of the automatic systems and optimisation of function of different types of automatic weapons.

Forces acting on the parts of an automatic weapon. Types of automatic weapons. Bolt locking systems and mechanical safety. Analysis of the cartridge case functions during firing. Analysis of differential equations of motion of elements in the mechanisms of automatic weapons with non-movable and movable receiver and methods for solving them. Characteristics of the movement of members of automatic weapon mechanisms. Determination of the transfer ratio and coefficient of efficiency of mechanisms that are used in the construction of an automatic weapon. Strikes in the mechanisms of automatic weapons. Movement of parts of automatics under the action of springs. Preliminary design of an automatic weapon: blow back operation systems (simple blow back, blow back with advanced primer ignition, delayed blow back, blow back with a locked breech), recoil operated systems (long recoil, short recoil), gas operation systems (long stroke pistons, short stroke pistons, direct gas action).

Calculation of forces acting on elements of an automatic weapon. Bolt locking systems and mechanical safety. Analysis of the cartridge case functions during firing. Methods of solving differential equations of motion of elements in the mechanisms of automatic weapons with non-movable and movable receiver.Characteristics of the movement of members of automatic weapon mechanisms. Determination of the transfer ratio and coefficient of efficiency of mechanisms that are used in the construction of an automatic weapon. Strikes in the mechanisms of automatic weapons. Movement of parts of automatics under the action of springs. Preliminary design of an automatic weapon: blow back operation systems (simple blow back, blow back with advanced primer ignition, delayed blow back, blow back with a locked breech), recoil operated systems (long recoil, short recoil), gas operation systems (long stroke pistons, short stroke pistons, direct gas action).

Desirable - passed exam in the subject Classical Armament Design.

1. Micković D.:Handouts - Automatic Weapons

Total assigned hours: 30

New material: 8
Elaboration and examples (recapitulation): 4

Auditory exercises: 7
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 5
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 1
Test: 0
Final exam: 5

Activity during lectures: 10
Test/test: 30
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 30
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 0

Automatic Weapons - Engineering Design Handbook, US Army Materiel Command Pamphlet 706-260, 1970; Vasiljević M.: Automatic Weapons, TŠC KoV JNA, Zagreb, 1970