SDZ Construction:Grenade Launcher (MK19)Inter-service Resident Range Safety Course (Intermediate)

August 2003

The MK19 is a 40mm machine gun. Its firing rate is over 350 grenades per minute.

August 2003

The MK19 was deployed in Southwest Asia during Operation Desert Storm and devastated enemy infantry.

August 2003

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:

Legend for the MK19 (Batwing)

August 2003

Constructing an SDZ for the MK19Construct 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.

August 2003

Plot the firing point and the baseline.

Plot the target.

Draw the gun target line.

August 2003

Dis

tan

ce X

2095m (ˆ2100m)

From Table 7-1, find the measurement for Distance X (earth).

Distance X =

Annotate Distance X on the legend.

August 2003

At the firing point, measure 10° to the right and left of the gun target line.

Dis

tan

ce X

Draw tic marks.

10°10°

August 2003

From the firing point, draw straight lines through the tic marks out through Distance X.

Dis

tan

ce X

10°10°

August 2003

From the firing point, scribe an arc from the left and right limits of the Dispersion Area. Use Distance X as the radius.

Dis

tan

ce X

10°10°

August 2003

DispersionArea

This completes the Dispersion Area.

Dis

tan

ce X

10°10°

August 2003

Using Table 7-1, find the measurement for Distance Y.

Distance Y = 1250m

DispersionArea

Annotate Distance Y on the legend.

Dis

tan

ce Y

Dis

tan

ce X

August 2003

From the Table 7-1, determine Angle P.

Angle P = 23°

DispersionArea

PP

Place tic marks at Distance Y on both the right and left lateral limits of the Dispersion Area.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

Draw tic marks as shown.

PP

At the firing point, measure 23° from the left and right limits of the Dispersion Area.

Dis

tan

ce X

Dis

tan

ce Y

23° 23°

August 2003

Draw a straight line from the firing point through the tic marks just drawn.

DispersionArea

Dis

tan

ce X

Dis

tan

ce Y

PP23° 23°

August 2003

DispersionArea

At Distance Y, measure 15° from the left and right limits of the Dispersion Area for Angle Q.

From the table, find Angle Q.

Angle Q = 15°

Dis

tan

ce X

Dis

tan

ce Y

PP

23° 23°

Q Q

15° 15°

August 2003

Draw tic marks as shown.

DispersionArea

Draw a straight line from the tic mark at Distance Y through the tic marks just drawn.

Dis

tan

ce X

Dis

tan

ce Y

PP

23° 23°

Q Q

15° 15°

August 2003

Using Table 7-1, find the measurement for Distance W.

Distance W = 167m (ˆ170m)

DispersionArea

From both the right, lightly draw lines perpendicular to the lateral limits of the Dispersion Area.

Dis

tan

ce X

Dis

tan

ce Y

PP

23° 23°

Q Q

15° 15°

August 2003

DispersionArea

Place tic marks on the lines just drawn at the measurement of Distance W.

Draw a straight line through the tic marks.

Dis

tan

ce X

Dis

tan

ce Y

PP

23° 23°

Q Q

15° 15°

August 2003

DispersionArea

This completes the Ricochet Area.

Dis

tan

ce X

Dis

tan

ce Y

PP

Q Q

August 2003

DispersionArea

This completes the Ricochet Area.

Erase any unnecessary lines.

Ricochet Area

Annotate the Ricochet Area (Distance W) on the legend.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

Ricochet Area

Dis

tan

ce X

Dis

tan

ce Y

This completes the Ricochet Area.

Erase any unnecessary lines.

Annotate the Ricochet Area (Distance W) on the legend.

August 2003

DispersionArea

Ricochet Area

From Table 7-1, find the measurement for Area A.

310mArea A =

Lightly draw lines perpendicular to the limits of the Ricochet and Dispersion Areas.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

Ricochet Area

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.

Draw tic marks at the measurement for Area A.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

Ricochet Area

310 metersArea B =

From Table 7-1, find the measurement for Area B.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

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.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

DispersionArea

Ricochet Area

Area A

Area B

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.

Dis

tan

ce X

Dis

tan

ce Y

Annotate Areas A and B on the legend.

August 2003

Area A

Area B

DispersionArea

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.

Dis

tan

ce X

Dis

tan

ce Y

August 2003

Area A

Area B

DispersionArea

Ricochet Area

Dis

tan

ce X

Dis

tan

ce Y

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.

August 2003

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:

Legend for the MK19 (Batwing)