Engaging Targets W/O FDC

Question 0

On whiz, what do spiral lines represent?

Answer 0

Charge

Question 1

What is found on outer edge if whiz wheel?

Answer 1

Range

Question 2

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

Answer 2

Max ordinate

Question 3

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

Answer 3

Seconds

Question 4

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

Answer 4

Elevation

Question 5

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

Answer 5

100

Question 6

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

Answer 6

100

Question 7

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

Answer 7

200 m

Question 8

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

Answer 8

400

Question 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.

Answer 9

100

Question 10

Traversing fire is distributed fires on a _____ target.

Answer 10

Wide

Question 11

Searching fire is distributed fires on a _____ target.

Answer 11

Deep

Question 12

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

Answer 12

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

Question 13

What formula used to obtain # turns between intervals?

Answer 13

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

Question 14

1 turn traverse on M224 & M252 = ___ mils.

Answer 14

10

Question 15

1 turn traverse on 120 mm mortar = ___ mils.

Answer 15

5

Question 16

What are the 2 methods of firing without FDC?

Answer 16

1. Direct Lay

2. Direct Alignment

Question 17

With what method of fire are aiming stakes used?

Answer 17

Direct alignment

Question 18

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

Answer 18

Gun-target

Question 19

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

Answer 19

3200

Question 20

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

Answer 20

Spotting

Question 21

What does LARS stand for?

Answer 21

Left
Add
Right
Subtract

Question 22

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

Answer 22

Gun-Target Distance (eg. 1000 m)

           X

Left or Right Correction (eg. 60 m L)