John Breed, Diary and Training diary, item 77

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Forcementthe pressure necessary to make the

projectile take the rifling in BL guns

_________________________________

Energy; The work stored up in the projectile at the

moment considered. It depends on its weight

and velocity.


Formula for finding Energy

E=W. V^2           = Energy in foot tons

    2gx2240


W= Weight of projectile in lbs

V = Velocity of projectile in foot seconds

C = A constant 23-2 the ace in due to gravity

_________________________________

Direct Laying; When the gun is laid by looking over or

through the sights at the target

_________________________________

Indirect Laying; When the gun is laid for direction on

an aiming post or an aiming point,- the

Angle of Sight is adjusted by dinometer 

and the Elevation by the range

indicator or drum

_________________________________

Transcription saved

Forcementthe pressure necessary to make the

projectile take the rifling in BL guns

_________________________________

Energy; The work stored up in the projectile at the

moment considered. It depends on its weight

and velocity.


Formula for finding Energy

E=W. V^2           = Energy in foot tons

    2gx2240


W= Weight of projectile in lbs

V = Velocity of projectile in foot seconds

C = A constant 23-2 the ace in due to gravity

_________________________________

Direct Laying; When the gun is laid by looking over or

through the sights at the target

_________________________________

Indirect Laying; When the gun is laid for direction on

an aiming post or an aiming point,- the

Angle of Sight is adjusted by dinometer 

and the Elevation by the range

indicator or drum

_________________________________


Transcription history
  • March 27, 2017 04:15:55 Cheryl Ellsworth

    Forcementthe pressure necessary to make the

    projectile take the rifling in BL guns

    _________________________________

    Energy; The work stored up in the projectile at the

    moment considered. It depends on its weight

    and velocity.


    Formula for finding Energy

    E=W. V^2           = Energy in foot tons

        2gx2240


    W= Weight of projectile in lbs

    V = Velocity of projectile in foot seconds

    C = A constant 23-2 the ace in due to gravity

    _________________________________

    Direct Laying; When the gun is laid by looking over or

    through the sights at the target

    _________________________________

    Indirect Laying; When the gun is laid for direction on

    an aiming post or an aiming point,- the

    Angle of Sight is adjusted by dinometer 

    and the Elevation by the range

    indicator or drum

    _________________________________

  • February 24, 2017 20:39:30 Erin Gordon

    Forcement;          the pressure necessary to make the

                                  projectile take the rifling in BL guns


    Energy;          The work stored up in the projectile at the

                            moment considered. It depends on its weight

                            and velocity.


                        Formula for finding Energy

    E=W. V^2           = Energy in foot tons

        2gx2240


    W= Weight of projectile in lbs

    V = Velocity of projectile in foot seconds

    C = A constant 23*2 the ace in due to gravity


    Direct Laying;           When the gun is laid by looking over or

                                        through the sights at the target


    Indirect Laying          When the gun is laid for direction on

                                         an aiming post or an aiming point,- the

                                          Angle of Sight is adjusted by dinometer 

                                            and the Elevation by the range

                                            indicator or drum


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    ID
    17035 / 198316
    Source
    http://europeana1914-1918.eu/...
    Contributor
    Mrs Jean Hanby
    License
    http://creativecommons.org/licenses/by-sa/3.0/



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