What does coaxial mean machine gun?

A coaxial machine gun is a machine gun fitted to a coaxial mount as a secondary weapon beside a vehicle’s main weapon. This allows the machine gun to be aimed by use of the main gun control.

What does coaxial mean in engineering?

In geometry, coaxial means that several three-dimensional linear or planar forms share a common axis. The two-dimensional analog is concentric. A coaxial cable is a three-dimensional linear structure.

What does Coaxiality mean?

Coaxiality is the tolerance for how closely the axis of one cylinder is to another. Examples are a shaft having two diameters, or perhaps two bores located on opposite sides of a housing.

Why does coaxial cable have two conductors?

A coaxial cable consists of two conductors laid concentrically along the same axis. One conducting wire is surrounded by a dielectric insulator, which is in turn surrounded by the other, outer conductor, producing an electrically shielded transmission circuit.

What are the two conductors in a coaxial cable?

A coaxial cable consists of two conductors separated by a dielectric material. The center conductor and the outer conductor, or shield, are configured in such a way that they form concentric cylinders with a common axis (hence co-axial). Most common constructions are solid or seven-strand conductors.

What is Cylindricity in metrology?

Cylindricity specifies the roundness and straightness of a form. When measuring cylindricity, you are checking for distortion in the cylinder, to verify the accuracy of its cylindrical form. Sample Drawings. Using a Roundness Measuring Instrument. Using a Coordinate Measuring Machine (CMM)

What is squareness in metrology?

Sqr = Squareness Definition. The squareness value is the minimum separation of two parallel planes normal to the reference axis that totally enclose the reference plane. Page 18. Global Excellence in Metrology.

What is a coaxial machine gun?

Only one that is aligned with the tanks main gun is referred to as coaxial. This machine gun allows the tanks gunner to engage infantry without using the cannon.

What does coaxial mean in the military?

Coaxial means that the bore of the large weapon and the machine gun are parallel. The arrangement worked well in the pre-computer age. We used to call it the “ping-boom” system. If you were sitting in the target tank you would hear a ping as the machine gun round struck, followed quickly by a boom as the cannon round struck.

What does coaxial mean in terms of the MG?

Coaxial simply means two or more objects or forms that shared a common axis, on other words the same direction. Since the MG and the cannon will always be facing the same direction, they’re both coaxial.

What is a co-ax gun?

This is a term that literally means “shares an axis”. In military terms, that means that the co-ax gun shares the axis of the main gun on a tank. In practical use, it is a machine-gun that is mounted on the tank in such a way that it will fire wherever the tank’s turret is pointed.