FO Flashcards
How many transmissions Immediate Suppression fire mission?
1
The 6 elements of call for fire?
- Call sign, Observer ID
- Warning Order
- Target location
- Target Description
- Method of Engagement
- Method of Fire/Control
Which elements of call for fire in first, second, third transmissions to the FDC?
1st Call Sign, Observer ID, Warno
2nd Target Location
3rd Target Description, Method of Engagement, Method of Fire/Control
2 times you can send direction for a Grid Mission?
- 4th transmission
2. Before 1st correction
Minimum Range/deviation for ILLUM fire missions?
200 m
Minimum HOB correction for ILLUM fire missions?
50m
The 6 methods of engagement?
- Type of Adjustment
- Danger Close
- Mark
- Trajectory
- Ammunition
- Distribution
The 2 types of adjustment?
- Precision
2. Area
Fires are Danger Close of they impact within _____m or less of friendlies.
600
The 2 types of Marking (Method of engagement)?
- Mark center Vector
2. Mark Targets for CAS
What are the 2 types of Trajectory?
- Low Angle of Fire
2. High Angle of Fire
main types of Artillery Ammunition?
- VT/PROX
- Delay
- ILLUM
- WP
- Smoke
- HE
The 4 types of Distribution?
- Converge Sheaf
- Open Sheaf
- Length/Width
- Attitude
16 Methods of Control?
- Fire when Ready
- At My Command
- Cannot Observe
- Time on Target
- Time to Target
- Coordinated Illumination
- Continuous Illumination
- Cease Loading
- Check Fire
- Continuous Fire
- Repeat
- Request Splash
- Do Not Load
- Duration
- Followed By
- Section Left/Right (depending on wind direction)
Who is responsible for announcing that Angle-T is in effect?
FDC
What is Angle T?
The angular deviation measurement between the OT direction and the GT direction
When is Angle T in effect?
When angle is between 0500-2700 mils (but no greater that 3200 mils).
What are the 8 types of Warnos?
- Adjust Fire Polar
- Adjust Fire Shift
- Adjust Fire Grid
- Fire For Effect
- Immediate Suppression
- Immediate Smoke
- Coordinated Illumination
- Continuous Illumination
What do you send FDC in 2nd transmission for Polar Fire Mission?
Direction to nearest 10 mils
Distance to nearest 100 m
Difference in btwn your altitude and the targets to nearest 5 m (if diff is 35 m or more)
What do you send up to FDC in 2nd transmission for Shift Fire Mission?
Direction of target to nearest 10 mils
Lateral shift to nearest 10 m
Diff in range from KP to Target to nearest 100 m
Altitude difference btwn KP and target to nearest 5 m (if 35 m or more)
What is primary responsibility of FO?
To locate, call for, and adjust indirect fire
What are some secondary responsibilities of FO?
- Know Terrain
- Maintain Surveillance
- Know Tactical Situation
- Know Enemy Situation
- Use of Commo
- Effectively Maintain Security of FO Party at All Times
- Report Intel as Discovered
What are someone the aids used by FO?
Maps Aerial photography Observed Fire Fans Terrain Sketches w/ Visibility Diagrams Protractor Compass GTA Cards LTLM Vector 21
For hand measurement of deviation, A. 1 finger = \_\_\_\_mils B. 2 fingers = \_\_\_\_ mils C. 3 fingers = \_\_\_\_ mils D. 4 fingers = \_\_\_\_ mils E. Fist = \_\_\_\_ mils F. Spread Hand = \_\_\_\_ mils
A. 30 B. 70 C. 100 D. 125 E. 180 F. 300
Direction is sent to the nearest ___ mils.
10
Range is expressed to the nearest ___ m.
100
Minimum vertical shift is ___ m.
35
Vertical shift is expressed as ___ or ____.
Up, Down
Vertical shift is measured in ___ m intervals.
5
What does RALS stand for?
Right
Add
Left
Subtract
Do you use RALS or LARS when measuring from a KP to Target?
RALS!
How do you determine lateral shift?
By MULTIPLYING the RANGE by the ANGULAR MIL DEVIATION from KP to target.
Round lateral shift to nearest ___ m.
10
When determining range for lateral shift, round to nearest ___ m and express it in __________.
100, thousandths
Minimum deviation correction is __ m and expressed as ____ or _____.
30, Left or Right
When calculating HOB for illumination, if illumination burns out ABOVE ground multiply the number of ____ by __ Factor, rounded to nearest ___ m and expressed as ____.
Mils, OT
50, Down
OT factor:
A)700 m = \_\_\_ B)\_\_\_ m = 0.8 C)850-949 m = \_\_\_ D)950-1499 m = \_\_\_ E)\_\_\_\_-2499 m = \_\_\_ F)\_\_\_\_-\_\_\_\_ m = 3 G)\_\_\_\_-\_\_\_\_ m = \_\_\_
A)0.7 B)800 C)0.9 D)1 E)1500 F)2500-3499 G)3500-4499
What range is the FPF located from friendly troops?
200-400 m
How far do you call the grid once the FPF is determined?
400-600 m away
When making deviation correction for an FPF the corrections ___ m or greater are NOT made.
50
What are the 3 types of adjustment?
- Successive bracketing
- Hasty bracketing
- Creeping fires
What type of round should FDC have guns shoot on Danger Close mission?
High Explosive Delay (HED)
What type of fire adjustments is used for Danger Close missions?
Creeping
What is the maximum correction on a Danger Close mission?
100 m
What do you round illumination mission corrections to that are over 200 m?
Nearest 100
When ILLUM round burns out on ground, take number of _____ X rate of _______ to nearest __ m.
Seconds
Descent
50