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Flashcards in 13-217 Deck (145):
1

What is the surface wind limitation for USAF equipment

17 knots

2

What should DZ selection be based on

Enemy threats, mission requirements, A/C and aircrew capabilities, parachutist capabilities, types of parachutes, type of equipment dropped

3

What is the minimum overrun for all LZ Operations

300 feet

4

What is the minimum runway dimensions for a U-28

2000 x 30 feet

5

What are the DZ length adjustments for night visual drops

increase length by 100 yards (50 yards to each end)
* Does not apply to C-17 doing GPS drops

6

How far away must obstacles be from the outer edge of the parking apron

85' / C-130
100' / C-17

7

What is a "water obstacle" defined as?

Any body of water that has a depth of 4 ft or more, length and width of more that 40 ft

8

What is the minimum DZ size for CDS drops (C-130)
(Up to 600 feet)

400x400 yards

9

What is the maximum allowed grade in the clear zone

5%

10

What is the surface wind limitation for USAF CDS bundles (G-13/14 parachutes)

20 knots

11

Where do you measured the glide slope ratio from on a landing zone

From the outer edge of the clear zone

12

What is considered a PI

Any drop landing within 25 yards of the PI

13

What is the surface wind limitation for USAF MFF land/intentional tree

18/22 knots

14

How do you express steepness as a ratio

Vertical distance/horizontal distance

Example: how big an object can be 10,500 feet away using a 35:1 approach zone ratio

1/35=x/10,500
1/35(10,500)=x
300 feet=x

15

What is the minimum DZ size for heavy equipment
(Up to 1100 feet)

600x1000 yards

16

What is AMP 3

A 500' box is established on the approach end of the runway while two panels(day) or a single light(night) is placed at the beginning of the overrun on the departure end of the runway

17

How would you cancel a drop clearance

Radio transmission
Red smoke
Red flares
Red lights
Scramble panels
Any other pre-planned signal

18

What is the surface wind limitation for HAARS, HV CDS, HSLLADS, or, HV-LCADS

No restriction

19

Tree stumps must be cut to within how many inches of the ground in the clear zone

6 inches

20

What is the minimum amount of time prior to TOT to pass a drop clearance

2 minutes

21

What are the standard GMRS markings

4 letter L
6 letter T
7 letter H

22

What is the rotor diameter for a CV-22

85 feet
Contingency HLZ size: 135 width x 110 length

23

What must you do with soil balls or dirt clods over 6 inches in diameter and hardened clay up to 4 inches in diameter that will not burst upon impact

Pulverize or remove from traffic area

24

What must you do when the ceiling is less than 600 feet during training drops

Clear all personnel from the DZ no later than 5 min prior to scheduled TOT and remain off until airdrops are complete

25

What is the formula to determine percent grade

Rise/Run(100)=percent grade

26

What is the criteria for runway shoulders

10 feet wide with a maximum positive/negative grade of 3%

27

What is the surface wind limitation for USAF MFF water

25 knots

28

What is the distance of apron setbacks on LZs

190' / C-130
215' / C-17

29

What is the surface wind limitation for USAF static line water

25 knots

30

What is the circumference for a day and night 10 gram weather balloon

57" day
74" night (or two 60" balloons)

31

How early should you transmit a "no drop" to the pilot

Early enough to allow time for authentication and NLT 1 min. prior to TOT unless an emergency arises

32

What is the distance between runway center-line and near edge of taxiways on an LZ

250' / C-130
280' / C-17

33

How do you set up a two light system

1 green light and 1 red light which is placed on the desired impact point 15-50 meters upwind

34

What is the surface wind limitation for non USAF personnel

Discretion of unit DZSO

35

What is the transitional area of a runway

An area extending outward beyond the graded area with a maximum positive slope of 10% and a maximum negative slope of 20%.
Width:
C-130 / 60 feet
C-17 / 70 feet
U-28 / 30 feet

36

What is the surface wind limitation for RAAMZ/CRRC

25 knots

37

What is the minimum DZ size for CDS drops (C-17)
(Up to 600 feet)

450x590 yards

38

How far away from the PI must the controller be when CDS or HE are being dropped

200 yards / CDS
300 yards / HE

39

What is the formula for determining if an object exceeds the maximum slope in any airfield zone

Slope % / 100 x (length of zone)

Ex. 5/100 x 35 = 1.75 feet

40

What is the Air Force form for an HLZ

AF 4303

41

What is the minimum size and number of panels for DZ block letters

35'x 35' (11 meters x 11 meters)
9 panels minimum

42

What is the load drift constant for personnel (static line)

3.0

43

What is the minimum runway dimensions for a C-17

3500 x 90 feet

44

How many grade changes are allowed in the overruns

No more than 1

45

What is the glideslope ratio for a U-28/C-130

35:1

46

What is the formula for dispersion distance

1/2SxE=L

S (aircraft speed)
E (exit time in seconds)
L (length of dispersion in yards)

47

What is the criteria for a water DZ

- minimum of 10 feet and must be clear of obstructions to that depth
- free of debris within 400 meters of center of DZ

48

What are the three methods for scoring a drop

Estimating
Pacing
Measuring

49

What is the GMRS/VIRS forward throw distance for HE (C-130)

500 yards

50

What is the rotor diameter for a MH-47

100 feet
Contingency HLZ size: 110 width x 140 length

51

What is the standard point of impact placement for CDS (C-130)

200 yards / day
250 yards / night

From the approach end

52

What is the surface wind limitation for USAF static line land/intentional tree

13/17 knots

53

What must you do to tree stumps in the traffic area

Remove and fill holes. Compact soil to weight bearing capacity of surrounding surface

54

How do jump masters determine minimum DZ size for MFF

Based on number of personnel to be dropped, jumper proficiency, and prevailing winds

55

What is the standard point of impact placement for CDS (C-17)

225 yards / day / night / IMC
275 yards / night PDA

From approach end

56

What is AMP 1

Panels/lights will be placed a minimum of 500' to a maximum of 1000' apart. There will be two approach/departure boxes at both ends of the runway marking the touchdown zone.

57

What are the aerial power line restrictions for DZs

- must be outside of 1000 meters from any DZ boundary
- if within 1000 meters, must. Be shut off NLT 15 min. prior to TOT
(Applies to power lines of 50 volts or greater)

58

What is the width of the exclusion area.

700' - unoccupied
1000' - occupied

59

What is the standard point of impact placement for personnel (C-130)

300 yards / day
350 yards / night

From the approach end

60

What is the standard point of impact placement for personnel (C-17)

300 yards / day / night / IMC
350 yards / night PDA

From approach end

61

What are the DZ adjustments for night visual single ship/ formation drops

increase width by 100 yards (50 yards to each side / 200 yards (100 yards to each side)

62

What is the GMRS/VIRS forward throw distance for personnel (MFF)

328 yards (C-130/C-17)

63

How long are LZ surveys good for

5 years

64

What is the length of the inner edge of the approach/departure clearance inner edge.

500'

65

What is the length of the inner approach zone

10,500 feet

66

How far away must ditches be away from the extended runway centerline in the clear

75 feet (C-130)
90 feet (C-17)

67

What is the surface wind limitation for USAF tandem

18 knots

68

What is the load drift constant for HE

1.5

69

What is the runway clear zone

A clear area located at the ends of the runway with a width equal to that of the primary surface and length of 500 feet

70

What is the width if the taxiway for a C-17

50'

71

What is the surface wind limitation for USAF CDS bundles (G-12 parachutes)

13 knots

72

What is the GMRS/VIRS forward throw distance for CDS (C-17)

725 yards

73

Where is the final panel placed in the GMRS

150 meters away from the previous panel

74

What is the preferred method of marking a water DZ

The recovery boat

75

How do you determine actual glide slope ratio of an area

Run/rise

76

How long does an HLZ survey last

12 months and needs to be updated every 6 months

77

What is AMP 2

Two touchdown boxes established on both the approach and departure end of the runway. Distance between panels/lights is 500 to 1000 feet.

78

How are strike reports given to the pilot

Distance from PI in yards and relative clock direction

79

What is the glideslope ratio for a C-17

20:1

80

What is the GMRS/VIRS forward throw distance for SATB (C-130)

160 yards

81

What is the surface wind limitation for non USAF equipment

At discretion of supported force DZSO

82

What is the GMRS/VIRS forward throw distance for CDS (C-130)

550 yards

83

What glide slope ratio should be used when evaluating an HLZ

10:1

84

What are the dimensions for an area DZ

- no more than 15 NM in length
- 1 NM in width
- elevation change can not exceed 300 feet within 1/2 NM of centerline

85

For HE and PE drops, what are the length and width adjustments for each 100' above the standard drop altitudes

30 yards to width and length (15 yards to each side/end)

86

Where are mobile TACANS placed on an LZ

150 feet right of centerline and even with first set of approach panels/lights

87

What is the load drift constant for HV-CDS

0

88

What is the width of the approach zone

2,500 feet

89

Where is the first panel placed in the GMRS

100 meters left of the line of flight

90

What does a steady green light signify to an A/C on ground/air

Cleared for takeoff / cleared to land

91

What is the clinometer reading for a 20:1 glide slope ratio

2.86 degrees

92

What is the glideslope ratio for C-5

50:1

93

What is a random approach DZ

A DZ with any axis of approach as long as the resulting DZ remains within boundaries of the original surveys DZ

94

What is the minimum runway dimensions for a C-5

6000 x 150 feet

95

What does a steady red light signify to an A/C on ground/air

Stop / Give way to other A/C

96

How far away must objects be from taxiway centerlines

95' / C-130
110' / C-17

97

What is the runway overrun

A portion of the clear zone located as an extension to the end of the runway. Usually 10% of the runway length and used for safety and to minimize risk to aircraft on takeoff or landing

98

What is the ceiling minimum for USAF training drops

300 foot ceiling and half mile visibility

99

What percentage of slope would require a helicopter to hover only

15% slope

100

Where are the gradients taken from on an LZ

Runway centerline

101

What is the formula for wind drift

D=KAV

D (drift in yards)
K (load drift constant)
A (drop altitude in hundreds of feet)
V (velocity)

102

What is the rotor diameter for a AH-6/MH-6

27 feet
Contingency HLZ size: 35 width x 40 length

103

What is the standard point of impact placement for equipment (C-17)

500 yards / day / night / IMC
550 yards / night PDA

From approach end

104

What is the minimum runway dimensions for a C-130

3000 x 60 feet

105

What's does a flashing red light signify to an A/C on ground/air

Taxi leave of runway / Do not land

106

Where are the flanker lights placed on a DZ at night

250 meters left and right abeam the PI

107

What Air Force form is used for DZ surveys

AF 3823

108

What is the GMRS/VIRS forward throw distance for HE (C-17)

700 yards

109

What is the taxiway clear area width

70'

110

What is the rotor diameter for a MH-53

75 feet
Contingency HLZ size : 125 width x 140 length

111

What Air Force form do you use for LZ/DZ

AF 4304

112

What is the rotor diameter for a UH-1

50 feet
Contingency HLZ size: 25 foot clearance from any portion of the helicopter

113

What are the dimensions for a MFF wind arrow

7 meters between lights/panels
14 meters between lights/panels at base

114

What does a flashing white light signify to an A/C on the ground

Return to starting point

115

What are the gradient ranges for taxiways

Maximum 2% per 100' longitudinal
0.5%-3% transverse

116

How much distance must there be between parked A/C and taxiing A/C

25' - prepared
50' - semi prepared

117

What is the rotor diameter for a HH-60

60 feet
Contingency HLZ size: 25 foot clearance from any portion of the helicopter

118

What is the width of the clear zone

500 feet

119

What is the surface wind limitation for USAF training bundles (SATB)

25 knots

120

Where is the authentication light placed in the GMRS

15 meters right of the first marker panel

121

What is the Air Force form for LZs

AF 3822

122

What is the load drift constant for door bundles

1.5

123

Where is the trailing edge beacon located on a night DZ

1000 meters from the PI or at the DZ trailing edge; whichever is closer

124

What is the criteria for a runway graded area

Graded area are adjacent to runway shoulder and should not have any obstacle greater than 4 inches in height(excluding runway markings). The width of the graded area varies from 35 to 375 feet. The minimum grade is 2% and the maximum grade is 5%

125

What is the width of the taxiway for a C-130

30'

126

What is the clinometer reading for a 35:1 glide slop ratio

1.64 degrees

127

What are the authorized standard DZ marking letters

J, C, A, R, S
H, O (circular DZ)

128

What are the two MFF DZ markings

Wind arrow and two light system

129

What is the minimum DZ size for personnel drops
(Up to 1000 feet)

600x600 yards

130

How long prior to use should landing zone surveys be requested

120 days

131

What is the primary surface dimensions for an LZ

Runway length plus 1000 feet (includes clear zones).
C-130/150' wide
C-17/180' wide

132

Bravo-3 message format is used for which type of DZ

Hasty/tactical DZ

133

What are the DZ adjustments for day visual formations

increase width by 100 yards (50 yards to each side)

134

Where are the primary DCP readings taken

1x in each overrun
3x in each touchdown area
Point of rotation
Primary braking area

135

What does an alternating red and green flashing light signify to A/C

Use caution

136

What is the load drift constant for SATB

2.4

137

How far away are panels placed from the operational edge of the runway

4'-10'

138

When must potholes, depressions, and soil mounds be filled in on the traffic area

When they exceed 15 inches across the top and 6 inches in depth or height

139

What is AMP 4

No markings on airfield

140

For CDS drops, what are the width and length adjustments for each 100' above standard 600' drop altitude

40 yards to width and length (20 yards to each side/end)

141

What does a flashing green light signify to an A/C on ground/air

Cleared to taxi / return for landing

142

What is the GMRS/VIRS forward throw distance for personnel (static line)/door bundle

250 yards (C-130/C-17)

143

What is the standard point of impact placement for equipment (C-130)

500 yards / day
550 yards / night

From the approach end

144

What is the load drift constant for CDS

1.5

145

What are the runway approach zones

A trapezoidal area extending outward from each clear zone within which no object may penetrate the glide slope angle.