Smesta

A system which uses a standard-scaled grid square, based on a point of origin on a map projection of the surface of the earth in an accurate and consistent manner to permit either position referencing or the computation of direction and distance between grid positions.

An assembly comprising two independent firing systems, one non-electric and one electric, so that the firing of either system will detonate all charges.

An assembly of equipment, methods and procedures and, if necessary, personnel, organized to accomplish information processing functions.

A radio navigation system which enables the position of an aircraft equipped with a suitable receiver to be fixed by two or more intersecting hyperbolic position lines. The system employs either a time difference measurement of pulse transmissions or a phase difference measurement of phase-locked continuous wave transmissions.

A worldwide system of communication to and from merchant ships using the peacetime commercial organization as a basis but under an operational control authority, with the ability to employ the broadcast mode to ships when the situation makes radio silence necessary.

A communication system which conveys information between military authorities for command and control purposes.