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28 Cards in this Set
- Front
- Back
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What is call for fire |
Gather of info from the observer sent to the FDC to determine the method of attack. |
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What are the 6 elements to call for fire |
Observer ID warning order target location target description method of engagement method of fire control |
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In how many PARTs is a call for fire sent? |
3 |
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How many Elements in a call for fire? |
6 |
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What is a grid mission? |
The observer sends the most accurate target location. Minimum 6 digit. |
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What do the 3 element of call for fire consist of? |
1. Observer ID and warning order 2. Target location 3. Target description, method of engagement, and method if fire control. |
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What are the hand measurements for angular deviation? |
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What are the ways to measure distance? |
Laser Flash to Bang Estimation Mental estimation |
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What is vertical shift? |
Difference in elevation of 35 meters or more between the observer and target. Correction of up or down |
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What are the methods of target location |
Grid Laser Grid Polar plot Laser polar Shift from known Point |
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What type of target location requires the FDC to know the observer's location? |
Polar |
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What is the formula for lateral shift? |
shift factor × deviation angle (mils) Ex: sf of 2.5 Deviation angle of 62 mils 2.5 × 62 = 155~160 (expressed to the nearest 10 meters) |
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In a shift from known Point, in what order are corrections sent |
Lateral shift Range **** Vertical shift |
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What is the formula for a lateral shift |
Range × mils =lateral distance in meters. Range to nearest 100 (ex 2500 =2.5) Lateral distance to nearest 10 meters Ex: 155 meters round up to 160 |
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What are the 4 types of adjustment techniques |
Succesive bracketing Hasty bracketing One round adjustment Creeping fire. |
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What is OT Factor |
Range between observer and target expressed in the nearest 1000 Ex: 4200 meters OT factor = 4 Less than 1000 expressed to nearest 100 800 = .8 |
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What is the Deviation Correction formula |
OT factor × spotting = deviation correction. Ex Spot is 45R, OT factor of 4 correction would be left 180 |
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What are the 4 types of missions? |
1. Adjust Fire 2. Fire for effect 3. Suppression and Immediate Smoke 4. Immediate suppression |
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What are the methods of control |
Fire when ready At my command Cannot observe Time on target Time to Target |
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What is the Artillery Expression |
If the OT factor ends in .5 you must round to the nearest EVEN whole number |
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How does the FO spot each round as it impacts |
Over, short, left, right |
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What is the preferred unit of measure for direction |
Mils |
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An observer can scale direction from a map to an accuracy of _____? |
10 mils |
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What is the equation for flash to bang? |
Elapsed time in seconds b/t the time the round impacts (flash) and the time the sound reaches the observer and multiply by 350 meters per seconds. |
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What are the parts to message to observer? |
1. Unit to fire 2. Change to CFF 3. # of rounds 4. Target # |
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Range corrections are rounded to the nearest? |
100 meters |
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Direction is spotted the nearest ___ mils |
10 mils |
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At what distance FO is danger close |
600 meters or less |
