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Master Gunner 3-19 > Annex B > Flashcards

Annex B Flashcards

1
Q

Define ballistics

A

The science of the motion of projectiles

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2
Q

Define line of sight

A

A straight line between the gun sight and the target

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3
Q

Define line of elevation

A

A prolongation of a line running through the axis of the gun bore

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4
Q

Define line of departure

A

A prolongation of a line running through the axis of the gun bore as the projectile leaves the muzzle

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5
Q

Define vertical gun jump

A

The angle measured in mils between the line of departure of the projectile and the line of elevation

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6
Q

Define trajectory

A

The path of the projectile from the muzzle of the weapon to the first point of impact

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7
Q

Define range

A

Weapon to target distance

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8
Q

Define superelevation

A

The angle measured in mils between the line of sight and the line of elevation

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9
Q

Define DR/DSE

A

Change in range for a 1 mil change in superelevation

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10
Q

Define DH/DR

A

Change in height for a 100 meter change in range

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11
Q

Define drift

A

The number of mils the projectile moves to the right of the gun target line because of the spin caused by the rifling

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12
Q

Define time of flight

A

The amount of time it takes a projectile to reach a target at a selected range

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13
Q

Define 10km/h cross wind deflection

A

This effect of wind deflection assumes a 10km/h cross wind the correction is applied into the wind when wind speed is different from 10km/h the point of aim must be calculated

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14
Q

Define max ordinate

A

The maximum height the projectile travels above the line of sight at a given range

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15
Q

Define range to maximum ordinate

A

The range at which the maximum ordinate is reached out to this range the projectile is ascending the range to the maximum ordinate always occurs shortly beyond half the target range

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16
Q

Define angle of fall

A

The number of mils between the projectile’s trajectory at impact and the line of sight

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17
Q

Define remaining velocity

A

Speed of the projectile in meters per second at a selected range

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18
Q

What is the constant when converting mils to degrees

A

0.05625

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19
Q

Name all the 7.62 ammo types by name and nomenclature

A

M61 Armour piercing M62 Tracer M62 overhead fire M63 Dummy M80 Ball

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20
Q

Define distance X

A

Distance X is the maximum distance a projectile ( to include guided missiles and rockets) will travel when fired or launched at a given quadrant elevation with a given charge or propulsion system

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21
Q

Define gun target line

A

The gun target line is an imaginary line drawn between the firing position and the target position this is also referred to as the line of fire once the target area is defined, the sdz is built from the inside out

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22
Q

Dispersion Area

A

The dispersion area is the area within the sdz located between the gun target line and the ricochet area. It contains bursts or impacts being dispersed about the center of impact and accounts for human error gun or cannon tub wear propellant temperature and so forth

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23
Q

what does the M919 penetrate solely by

A

kinetic energy

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24
Q

what is the nomenclature of the fuse in the M792

A

M758 fuse

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25
Q

what is the max range of the M240

A

3,725m

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26
Q

state the uses of the M80 ball ammunition

A

used against targets of light material, personnel, and during markmanship training

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27
Q

State the uses of the M62 tracer ammunition

A

used for observation of fire incendiary effect signaling and marking targets

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28
Q

m240 muzzle velocity

A

2,750fps

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29
Q

how is the m791 stabilized while in flight

A

the tungsten penetrator is spin stabilized

30
Q

what is the m919 penetrator made of

A

depleted uranium

31
Q

what is the arming distance of the m792

A

10-200m

32
Q

max effective range of the m793

A

1600m

33
Q

name all the 25mm ammo types by name and nomenclature

A

m791 is APDST m792 is HEIT m793 is TPT m794 is dummy m910 is TPDST m919 is APFSDST

34
Q

max effective for the M240

A

900m

35
Q

list the five parts of the TPT round

A

Primer case cartridge tracer body and rotating bans assembly aluminum windscreen

36
Q

HEIT has how much HEI mixture

A

32 grams

37
Q

what is the danger zone for the sabot

A

60 degrees on both sides of the gun target line for 100m

38
Q

list the muzzle velocities for each 25mm round

A

m791 1,345 m792 1,100 m793 1,100 m919 1,525 m919 1,385 all (+/- 20) and unit of measure is mps

39
Q

bursting radius for the m792

A

5m

40
Q

what causes the sabot to discard

A

setback, centrifugal force, air pressure

41
Q

what stabilizes the m919 while in flight

A

screw on fins

42
Q

define grazing impact

A

the projectile may detonate if impact is sufficient during a direct impact or if the impact is insufficient spin decay will all the setback spring to overcome centrifigal force and force the body assembly forward thrusting the detonator into the firing pin

43
Q

what is the m791 penetrator made of

A

solid tungsten alloy

44
Q

what must be accompanied when requesting to establish a temporary firing range

A

surface danger area diagram

45
Q

before selecting a site for a scaled or full caliber range what must be prepared and performed

A

detail map and ground reconnaissance

46
Q

what may be reduced to a 15 degree elevation provided, provided the firing elevation of the gun

A

distance x

47
Q

what must be know to calculate a maneuver box

A

average vehicle speed for the course, target lift time, and exposure time

48
Q

what are the responsibilities of the MG

A

prepare SDAD and range overlay as required prepared scaled ranges if required organizing and setting up range firing exercises ensuring that range firing exercises are properly conducted coordinating targetry array and layout for range firing and qual establish remedial training as needed ensure effective LCE program is implemented for standardization

49
Q

how does the ammunition nco check resupplys to ensure ammo is not restricted or suspended

A

verifies with the rso and TB 9-1300-385

50
Q

what should be removed with a vertical or near vertical surface in the target area that might reflect the laser beam

A

mirriors plastic or glass or other flat mirrior like objects

51
Q

true or false the rso whill have no more than two responsibilities during the exercise

A

false

52
Q

full scale targets should be the same what as threat targets

A

the same size shape and color

53
Q

who supervises all the work details during the conduct of the range

A

the operations chief

54
Q

when planning lav-25 combat training the following area should be planned for and usally vary with tables to be trained

A

assets, battalion training and company training

55
Q

what must a corpsman posses or be assigned prior to the conduct of the range

A

be assigned a sfety vehicle and driver. detailed route information to the nearest aid station or hospital. radio and or telephone with operating procedures to use during air medevac. the corpsman must provide an identification card (medical) or disposition form from the commander stating that his is qualified. inspect the medical personnel to ensure they have neccissary equipment and supplies needed for injuries that may be sustained during training

56
Q

the oic can designate assistants who are responsible for what

A

areas of operation

57
Q

the master gunner assists who and for what

A

the commander and the staff in planning, developing, and conducting gunnery training

58
Q

what should provide guidelines to the firing unit for occupying the range and describe actions to be taken for hand over for specific tasks

A

SOP

59
Q

when using a laser range finder and it is impracticle to remove flat mirror like objects from the target area how do you cover it

A

with lusterless paint or non-reflecting material such as cloth or cardboard

60
Q

what does the sop include

A

guidelines for setting up the tactical range or trainig area and should describe actions to be taken for specific tasks

61
Q

when prepairing a detailed map control measures that should be included but not limited to are

A

the assembly area, line of departure, training area boundaries guard positions, location of obsticles or restrictive terrain, ammunition supply point and after action review site

62
Q

define area A

A

the secondary danger area that laterally parallels the impact area or ricochet area (depending on the weapon system) and contains fragments, debris and components from frangible or explosive projectiles and warheads functioning on the right or left edge of the impact area or ricochet area

63
Q

define despersion area

A

the area within the surface danger area within the surface danger zone located between the gun target line and the ricochet area this area accounts for human error gun or cannon tube wear propellant temperature, etc

64
Q

define distance Y

A

the maximum distance downrange at which a lateral ricochet is expected to occur when a projectile is fired at a given quadrant of elevation

65
Q

define angle P

A

the area beginning at the firing point located to the left and right of the despersion area which defines the area which contains projectiles after making initial contact with the target medium

66
Q

define distance w

A

the maximum lateral distance a projectile will ricochet after impacting within the despersion area distance w defines the maximum lateral edge of a ricochet area

67
Q

define distance x

A

the maximum distance a projectile (to include guided missles and rockets) will travel when fired or launched at a given quadrant elevation with a given charge or propulsion system

68
Q

define area F

A

the danger area to the rear of a weapon system that is endangered by backblast debris overpressure blast and hazardous impulse noise

69
Q

define area B

A

the secondary danger area on the downrange side of the impact area and area which contains fragments debris and components from frangible or exploding projectiles and war heads functioning on the far edge of the impact area A

70
Q

define gun target line

A

an imaginary line drawn between the firing position and target position also referred to as the line of fire

71
Q

define angle Q

A

the angle begins at distance x located to the left and right of the desperion area which defines the area which contains projectiles after making initial contact with the target medium

Master Gunner 3-19 (4 decks)

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