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3. Rocket Steering Cue Centerline reference on display.
(CDS4) Cue has horizontal and vertical axes.
4. W HOT/B HOT/ When TIS is selected, toggles between W HOT and B HOT. With TV
NORM/INV key selected at R-2, on IMSP/MMS configuration, toggles between NORM
(normal video) and INV (inverted video).
5. Range-to-target Displays boxed when range is current and available. Source is “L” Laser
range, “P” prepoint range, “N” distance to direct fly-to-wpt.
Range will remain boxed if range is current and selected FUZE/CUE
source is same as range displayed. Source is “L” laser range, “P”
prepoint range, “N” distance to direct fly-to-wpt.
(CDS4) Range is boxed if if current laser range is being displayed. Range
not boxed if last valid laser range is used. Display is boxed while laser is
firing and for 5 seconds after laser firing is stopped. Source is “L” laser
range, “P” prepoint range, “N” distance to direct fly-to-wpt.
6. Weapons Status Indicates rockets are OFF, SAFED or ARMED.
Figure 4-49. 2.75-inch Rocket Sparse VSD
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CONTROL/INDICATOR FUNCTION
1. Warhead data Select rocket warhead by zone.
2. CHANGE ZONE key Toggles rocket zones between A, B, and ALL with the active
mode boxed.
3. WEAPONS BIT/SET-UP PAGE Selects WEAPONS BIT/SET-UP PAGE.
key
4. Zone data Selected zone boxed.
5. CONTACT Contact fuzing and cue distance data.
Figure 4-50. 2.75-inch Rocket WEAPONS PAGE (Sheet 1 of 2)
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TM 1-1520-248-10
(Cont)
CONTROL/INDICATOR FUNCTION
6. CONTACT FUZE/CUE Activation of the L-5 key allows entry of the contact fuze data.
DISTANCE key Select S, B, or a number from 10 through 45. If no selection is
made the last selected value is used. Following selection of enter
on the MFK, the selected value is entered in the box below
“CONTACT” in the rocket symbol. Also the legend at L-5 key is
changed to accept “CONTACT CUE” entry. Select L, N, or a
number from 500 through 8000. If no entry the last selected value
is used. After selection of enter on the MFK, the selected value is
entered in the box below “CONTACT” and to the right of the
“CONTACT FUZE” data. The contact fuze data is rounded down
to the nearest 250 increment. Numbers between 3000 and 8000
are rounded to the nearest 500 meter increment.
7. AIRBURST FUZE/CUE Data entry fields for rocket fuze distance. Airburst data enters
DISTANCE key initial setting for rockets with airburst fuzes. Enter number
between 500 and 3,000 in 250 meter increments or 3,000 to
6,000 in 500 meter increments. Number between allowed
increments will be rounded down to the nearest allowed and
displayed. Number between allowed increments will be
rounded to the nearest allowed increment and displayed. Entering
L defaults FUZE/CUE to laser RANGE only. Entering N defaults
FUZE/CUE to DIR WPT.
8. AIR Airburst fuzing and cueing data. Displayed adjacent to type of
rocket.
Figure 4-50. 2.75-inch Rocket WEAPONS PAGE (Sheet 2 of 2)
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CONTROL/INDICATOR FUNCTION
1. ROCKET TYPES BY Selects Rocket types menu.
ZONES key
2. WEAPONS PAGE key Selects WEAPONS PAGE.
Figure 4-51. 2.75-inch Rocket WEAPONS BIT/SET-UP PAGE
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TM 1-1520-248-10
406075-1534-3
J0924
CONTROL/INDICATOR FUNCTION
1. Warhead data Lists warhead selections for entry.
2. ZONE A/B Enter number from warhead data selection for ZONE A. Pressing
ENTER on the MFK allows for warhead data selection for ZONE B.
3. WEAPONS PAGE key Selects WEAPONS PAGE.
Figure 4-52. 2.75-inch Rocket WEAPONS BIT/SET-UP PAGE with Rocket Set-up Code
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RIPPLE
SINGLES
RIPPLE
PAIRS
SINGLES
SINGLES
SINGLES
PAIRS
RIPPLE
SINGLES
SINGLES
SINGLES
(TWO LAUNCHERS INSTALLED)
(ONE LAUNCHER INSTALLED)
406947-30
G7219
Figure 4-53. Rocket Firing Mode Selections
ZONE A
ZONE B
2.75 INCH ROCKET
LAUNCHER ZONES
4 6
2 1 3
7 5
2.75 INCH ROCKET
FIRING SEQUENCE
406947-28
G7216
Figure 4-54. Rocket Launcher Zones and Firing Sequence
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TM 1-1520-248-10
4 - 6 8 . MALFUNCTIONS 2 . 7 5 - I N C H or during hot re-arm the crew is briefed by armament
ROCKET. personnel on which missile type is uploaded.
Stinger missile seeker slaving mode is available.
4-69. MISFIRE 2.75-INCH ROCKET. This mode of acquiring a target drives the missile’s
seeker to the MMS LOS when SLAVING ON is
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TECHNICAL MANUAL OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPT(118)
