ARMY VIRS and GMRS

Question 1

What is the minimum size of a VIRS DZ

Answer 1

275 Meters x 275 Meters

Question 2

What does VIRS stand for?

Answer 2

Verbaly
Initiated
Release
System

Question 3

Additional size requirement for VIRS DZ will be determined using what formula?

Answer 3

DIRT
D=RxT

Question 4

What are the steps to setting up a VIRS DZ

Answer 4

1. Determine drop heading
2. Determine the Point of Impact
3. Determine wind direction and speed (MEW)
4. Pace off drift in meters into the wind
5. Pace off forward throw on the back azimuth of drop heading
   pg 199-201

Question 5

to establish a ARMY VIRS DZ, determine the drop heading by taking into consideration what three factors?

Answer 5

• Long Axis
• Wind Direction
• Obstacles
  pg 199

Question 6

To calculate wind direction and speed what formula do you use?

Answer 6

DKAV
D=K x A x V(mew)

Question 7

what does MEW stand for

Answer 7

Mean
Effective
Wind

Question 8

What equipment is required for MEW readings

Answer 8

• PIBAL (10gram or 30 gram)
• Helium source
• Drift scale
• stop watch with seconds
• compass
  pg 200

Question 9

What is the PIBALL circumference for a 10gram DAY

Answer 9

57 inches
pg 200

Question 10

What is the PIBALL circumference for a 30 gram DAY

Answer 10

75 inches
pg 200

Question 11

What is the PIBALL circumference for a 10 gram NIGHT

Answer 11

74 inches
pg 200

Question 12

What is the PIBALL circumference for a 30 gram NIGHT

Answer 12

94 inches
pg 200