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Flashcards in Engaging Targets W/O FDC Deck (23)
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0

What is found on outer edge if whiz wheel?

Range

1

On whiz, what do spiral lines represent?

Charge

2

One whiz wheel charge lines, what do numbers in squares represent?

Max ordinate

3

On whiz wheel, What do numbers on top side of charge lines represent?

Seconds

4

On whiz wheel, what do numbers on bottom of charge lines represent?

Elevation

5

If observer is within ______ m of the gun line (forward or rearward of), the OT/GT formula is not used.

100

6

If the observer is <1000 m from target the minimum range change that the gunner adds or drops is _____m.

100

7

If the observer is 1000 to 2000m from target the minimum range change that the gunner adds or drops is _____m.

200 m

8

If the observer is more than 2000m from target the minimum range change that the gunner adds or drops is _____m.

400

9

If observer is over 100 m forward or rearward of gun line, he must be within ____m of the gun-target line (left or right of)to use GT/OT formula.

100

10

Traversing fire is distributed fires on a _____ target.

Wide

11

Searching fire is distributed fires on a _____ target.

Deep

12

When traverse firing on a wide target what are the 5 values that are necessary to cover entire width of target?

1. TARGET WIDTH
2. # of TURNS to be used (TrvrsngHW)
3. # of ROUNDS per target
4. # of INTERVALS
5. # TURNS BETWEEN INTERVALS

13

What formula used to obtain # turns between intervals?

# of TURNS OF TRAVERSE
------------------------------
# of INTERVALS

14

1 turn traverse on M224 & M252 = ___ mils.

10

15

1 turn traverse on 120 mm mortar = ___ mils.

5

16

What are the 2 methods of firing without FDC?

1. Direct Lay
2. Direct Alignment

17

With what method of fire are aiming stakes used?

Direct alignment

18

While firing mortars Direct Alignment, corrections are made in relation to the ____ - _______ line.

Gun-target

19

When laying mortars in direct lay/direct alignment, deflection is ALWAYS set to _____ mils initially.

3200

20

What term is used for when the observer sees the round impact and splash?

Spotting

21

What does LARS stand for?

Left
Add
Right
Subtract

22

What formula is used when observer is NOT within 100 m forward or rearward of gun line to make corrections?

Observer-Target Distance (eg. 1200 m)
-------------------------------
Gun-Target Distance (eg. 1000 m)

X

Left or Right Correction (eg. 60 m L)