John Breed, Diary and Training diary, item 72

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Line of Fire; A line joining the muzzle of the piece

and the point aimed at

__________________________________

Note; This term should be used instead of the

preceding one if firing from behind cover or

in any case when the sights of the piece

are not used

__________________________________

Plane of Sight; The vertical plane passing through

the line of sight

__________________________________

Angle of Sight; The angle which the line of sight

marks with the horizontal plane

__________________________________

Angle of Elevation; The angle which the line of sight makes

with the axis of the gun

__________________________________

Quadrant Angle the angle which the axis of the gun

makes with the horizontal plane. It

is  termed Quadrant Elevation or depression

according as the gun is laid above or

below  the horizontal plane

Transcription saved

Line of Fire; A line joining the muzzle of the piece

and the point aimed at

__________________________________

Note; This term should be used instead of the

preceding one if firing from behind cover or

in any case when the sights of the piece

are not used

__________________________________

Plane of Sight; The vertical plane passing through

the line of sight

__________________________________

Angle of Sight; The angle which the line of sight

marks with the horizontal plane

__________________________________

Angle of Elevation; The angle which the line of sight makes

with the axis of the gun

__________________________________

Quadrant Angle the angle which the axis of the gun

makes with the horizontal plane. It

is  termed Quadrant Elevation or depression

according as the gun is laid above or

below  the horizontal plane


Transcription history
  • March 27, 2017 03:07:40 Cheryl Ellsworth

    Line of Fire; A line joining the muzzle of the piece

    and the point aimed at

    __________________________________

    Note; This term should be used instead of the

    preceding one if firing from behind cover or

    in any case when the sights of the piece

    are not used

    __________________________________

    Plane of Sight; The vertical plane passing through

    the line of sight

    __________________________________

    Angle of Sight; The angle which the line of sight

    marks with the horizontal plane

    __________________________________

    Angle of Elevation; The angle which the line of sight makes

    with the axis of the gun

    __________________________________

    Quadrant Angle the angle which the axis of the gun

    makes with the horizontal plane. It

    is  termed Quadrant Elevation or depression

    according as the gun is laid above or

    below  the horizontal plane

Description

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    Location(s)


    ID
    17035 / 198311
    Source
    http://europeana1914-1918.eu/...
    Contributor
    Mrs Jean Hanby
    License
    http://creativecommons.org/licenses/by-sa/3.0/



    • Western Front

    • Artillery
    • Trench Life



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