John Breed, Diary and Training diary, item 75
Transcription
Transcription history
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the Range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
__________________________________
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
__________________________________
Lateral Deviation; The distance of the point of impact of the
projectile right or left of the line of fire
or in other words the perpendicular distance
of the point of impact of the projectile
right or let of the plane of sight
__________________________________
Point Blank; A gun is laid point blank when the line
of sight is parallel to its axis
__________________________________
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the Range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
__________________________________
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
Lateral Deviation, The distance of the point of impact of the
projectile right or left of the line of fire
or in other words the perpendicular distance
of the point of impact of the projectile
right or let of the plane of sight
Point Blank; A gun is laid point blank when the line
of sight is parallel to its axis
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the Range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
__________________________________
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
Lateral Deviation, The distance of the point of impact of the
projectile right or left of the line of fire
or in other words the perpendicular distance
of the point of impact of the projectile
right or let of the plane of sight
Point Blank; A gun is laid point blank when the line
of sight is parallel to its axis
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
Lateral Deviation, The distance of the point of impact of the
projectile right or left of the line of fire
or in other words the perpendicular distance
of the point of impact of the projectile
right or let of the plane of sight
Point Blank; A gun is laid point blank when the line
of sight is parallel to its axis
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
Lateral Deviation, The distance of the point of impact of the
projectile right or left of the line of fire
or in other words the perpendicular distance
of the point of impact of the projectile
right or let of the plane of sight
Point Blank;
-
horizontally as the case may be.
Note
The angle or slope of Descent as given in the range
Table is only correct when the gun and target are
on the same horizontal plane, the angle of sight
must be added to or deducted from the angle of
Descent given in the Range Table according as the
gun is in a plane above or below the target
Angle of Incidence The angle which a tangent to the trajectory
at the point of impact makes with the
surface struck
Description
Save descriptionLocation(s)
- ID
- 17035 / 198314
- Contributor
- Mrs Jean Hanby
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