Dismounted Reconnaissance Troop - Army Electronic Publications ...

Chapter 7
EMPLOYING FIRES
Table 7-2. Indirect fire capabilities
Capabilities of the Indirect Fire System
CALIBER 60-mm 81-mm 120-mm 105-mm 155-mm 155-mm
MODEL M224 M252 M285 M119 M198/M777series
MAX RANGE (HE)(m) 3,490 5,608 7,200 14,000 w/
charge 8
PLANNING RANGE (m) (2/3 max) (2/3 max) (2/3 max) 11,500 2/3
max range of
the largest
powder and
projectile lots
of the
appropriate
type of shells
at the firing
unit
PROJECTILE HE, WP,
illum, IR
illum
MAX RATE OF FIRE 30 RPM for
4 min
SUSTAINED RATE OF
FIRE (rd/min)
HE, WP,
illum, RP, IR
illum
30 RPM for
2 min
HE, SMK,
illum, IR illum
16 RPM for
1 min
HE M760
illum, HEP-T,
APICM, RAP
8 RPM for
3 min
20 15 4 3 for 30
minutes
M109A6
30,000 18,600
w/M232A1
2/3 max range
of the largest
power and
projectile lots of
the appropriate
type shell
available at the
firing unit
HE, WP, illum,
smk, RAP,
FASCAM,
CPHD,
Excalibur,
APICM, DPICM
4 RPM (M198)
for 3 min / 5
RPM (M777series)
for 2 min
2 as determined
by thermal
warning device
2/3 max range
of the largest
powder and
projectile lots
of the
appropriate
type of shells
at the firing
unit
HE, WP, illum,
smk, RAP,
FASCAM,
CPHD,
Excalibur,
APICM,
DPICM
4 RPM for
3 min
MINIMUM RANGE (m) 70 83 200 Direct fire Direct fire Direct fire
FUZES PD, VT,
time, dly,
MO
LEGEND
PD, VT,
time, dly,
MO
AP armor piercing
APICM antipersonnel improved conventional munitions
chem chemical
CP concrete piercing
CPHD copperhead
dly delay
DPICM dual purpose improved conventional munitions
FASCAM family of scatterable mines
HE high explosive
HEP-T high explosive plastic-tracer
illum illumination
IR infrared
min minute
PD, VT, time,
dly, MO
PD, VT,
MTSQ, CP,
MT, dly
PD, VT, CP,
MT, MTSQ, dly
MO multioption (VT, PD, dly)
MT mechanical time
MTSQ mechanical time super quick
nuc nuclear
PD point detonating
RAP rocket assisted projectile
RD round
RP red phosphorus
RPM rounds per minute
smk smoke
time adjustable time delay
VT variable time
WP white phosphorus
7-32. Except as specifically directed, the DRT rarely engages the enemy with direct fire. When lethal fires
are needed, the DRT most often employs indirect fire, CAS, or CCA assets. The reconnaissance troop may
direct fires on specific targets to disengage from the enemy or to attack targets provided in the commander's
HPTL.
7-8 ATTP 3-20.97 16 November 2010
1
PD, VT, CP,
MT, MTSQ,
dly