Engineering Design Handbook - Elements of Armament by ARMY MATERIEL COMMAND ALEXANDRIA VA PDF
By ARMY MATERIEL COMMAND ALEXANDRIA VA
This 1963 textual content represents the applying of army, clinical, and engineering basics to the research, layout and operation of guns platforms, together with nuclear elements. it's not meant to completely orient or familiarize the scholar in guns employment or nomenclature.
Read or Download Engineering Design Handbook - Elements of Armament Engineering, Part Three - Weapon Systems and Components: PDF
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Additional info for Engineering Design Handbook - Elements of Armament Engineering, Part Three - Weapon Systems and Components:
Are taken for granted in the modern weapon. A satisfactory breech mechanism must be easy and quick to operate. If it is operated manually, its operation must be quick enough that it does not delay the rate of fire, and easy enough that the operator will not become nnduly fatigued 5-4 Safety is another very important rcquircment. For a grin crew to operate most efficiently, thc inen must have confidence that they will not bc injured in serving the weapon. The obturation must be complete Ohtitration is the sealing of the propellent gases in the chitinher, both to the front m t l to the rear.
Where X is the distance in feet that the spring is compressed or stretched. Therefore, the acceleration in the X direction is directly proportional 4-3 WEAPON SYSTEMS AND COMPONENTS Fig. 4-4 Integrating gyroscopic accelerometer. than a few degrees, the pendulous mass would pick up accelerations at right angles to the desired axis, introducing errors of considerable magnitude. do. The torque of the servo motor is h -', and (4-7) where V, is the velocity along the input axis. From (4-5) it is seen that the angular velocity of the servo motor is proportional to acceleration, while from (4-7) it is seen that the angular position of the servo is proportional to velocity.
5-4 Fig. 1 Welin breechblock. Fig. 5-6 Vertical sliding-wedge breechblock. Horizontal sliding-wedge breechblock. of adapting an obturating device to the assembly. INTERRUPTED-SCREW The most common type of interrupted-screw breechblock is the stepped thread ( Welin) breechblock. The breech recess and the breechblock are cut with a series of stepped threads (Figure 5-4) so that when the breechblock is inserted and turned in the breech recess, matching sections of stepped threads engage. Using the stepped type of thread, a large threaded surface or holding area is possible.
Engineering Design Handbook - Elements of Armament Engineering, Part Three - Weapon Systems and Components: by ARMY MATERIEL COMMAND ALEXANDRIA VA