Transcript SDZ Construction: Grenade Launcher (MK19)

SDZ Construction:
Grenade Launcher (MK19)
Inter-service Resident Range Safety Course
(Intermediate)
The MK19 is a 40mm machine gun. Its firing
rate is over 350 grenades per minute.
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The MK19 was deployed in Southwest Asia
during Operation Desert Storm and devastated
enemy infantry.
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Legend for the MK19 (Batwing)
Weapon:
Ammo Type:
Impact Media:
Distance X:
Distance Y:
Distance W:
Angle P:
Angle Q:
Area A:
Area B:
Map Scale:
Map Sheet:
Map Series:
Map Edition:
Date:
Name:
August 2003
Constructing an SDZ for the MK19
Construct an SDZ for the MK19 Grenade
Launcher firing the M383 HE cartridge.
Map Scale: 1:12,500.
Dimensions of the SDZ for this weapon
system are given in DA-PAM 385-63,
Chapter 7, Table 7-1.
First, plot the firing point, baseline, target,
and gun target line.
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Plot the firing point and the baseline.
Plot the target.
Draw the gun target line.
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Distance X
From Table 7-1, find the measurement for Distance X
(earth).
Distance X = 2095m (ˆ2100m)
Annotate Distance X on the legend.
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Distance X
10°
10°
At the firing point, measure 10° to the right and left of the
gun target line.
Draw tic marks.
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Distance X
10°
10°
From the firing point, draw straight lines through the tic
marks out through Distance X.
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Distance X
10°
10°
From the firing point, scribe an arc from the left and right
limits of the Dispersion Area. Use Distance X as the
radius.
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Distance X
Dispersion
Area
10°
10°
This completes the Dispersion Area.
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Distance Y
Distance X
Dispersion
Area
Using Table 7-1, find the measurement for Distance Y.
Distance Y = 1250m
Annotate Distance Y on the legend.
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Distance Y
Distance X
Dispersion
Area
P
P
Place tic marks at Distance Y on both the right and left
lateral limits of the Dispersion Area.
From the Table 7-1, determine Angle P.
Angle P = 23
°
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Distance Y
Distance X
Dispersion
Area
P
23°
P
23°
At the firing point, measure 23° from the left and right limits
of the Dispersion Area.
Draw tic marks as shown.
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Distance Y
Distance X
Dispersion
Area
P
23°
P
23°
Draw a straight line from the firing point through the tic
marks just drawn.
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Q
Distance Y
Distance X
Dispersion
Area
Q
15°
P
23°
15°
P
23°
From the table, find Angle Q.
Angle Q = 15°
At Distance Y, measure 15° from the left and right limits of
the Dispersion Area for Angle Q.
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Q
Distance Y
Distance X
Dispersion
Area
Q
15°
P
23°
15°
P
23°
Draw tic marks as shown.
Draw a straight line from the tic mark at Distance Y
through the tic marks just drawn.
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Q
Distance Y
Distance X
Dispersion
Area
Q
15°
P
23°
15°
P
23°
Using Table 7-1, find the measurement for Distance W.
Distance W = 167m
From both the (ˆ170m)
right, lightly draw lines perpendicular to the
lateral limits of the Dispersion Area.
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Q
Distance Y
Distance X
Dispersion
Area
Q
15°
P
23°
15°
P
23°
Place tic marks on the lines just drawn at the
measurement of Distance W.
Draw a straight line through the tic marks.
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Q
Distance Y
Distance X
Dispersion
Area
Q
P
P
This completes the Ricochet Area.
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
This completes the Ricochet Area.
Annotate the Ricochet Area (Distance W) on the legend.
Erase any unnecessary lines.
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
This completes the Ricochet Area.
Annotate the Ricochet Area (Distance W) on the legend.
Erase any unnecessary lines.
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
From Table 7-1, find the measurement for Area A.
Area A = 310m
Lightly draw lines perpendicular to the limits of the
Ricochet and Dispersion Areas.
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
Draw tic marks at the measurement for Area A.
To establish the boundary of Areas A draw straight lines
through the tic marks just drawn, through Distance X at
the top and the base line at the bottom.
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
From Table 7-1, find the measurement for Area B.
Area B = 310
meters
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Distance Y
Distance X
Dispersion
Area
Ricochet Area
Lightly draw a line extending the gun target line.
Verify that the measurement for Distance X is correct and
then draw a tic mark at the measurement of Area B.
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Area B
Dispersion
Area
Distance Y
Distance X
Area A
Ricochet Area
From the firing point, scribe an arc through the tic mark from
the left to the right limits of Area A.
This completes Areas A and B.
Annotate Areas A and B on the legend.
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Area B
Dispersion
Area
Distance Y
Distance X
Area A
Ricochet Area
Make a notation of the minimum engagement range
(310m from the firing point). Do not engage targets any
closer to the firing point than this!
To complete the SDZ, erase any unnecessary lines.
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Area B
Dispersion
Area
Distance Y
Distance X
Area A
Ricochet Area
Make a notation of the minimum engagement range
(310m from the firing point). Do not engage targets any
closer to the firing point than this!
To complete the SDZ, erase any unnecessary lines.
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Legend for the MK19 (Batwing)
Weapon:
MK19 MOD 3 Grenade Launcher
Ammo Type:
M383 HE
Impact Media:
Earth
Distance X:
2100m
Distance Y:
1250m
Distance W:
167m (ˆ170m)
Angle P:
23°
Angle Q:
15°
Area A:
310m
Area B:
310m
Map Scale:
1:12,500
Map Sheet:
Map Series:
Map Edition:
Date:
Name:
August 2003