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Flashcards in 13-217 Deck (145):
1

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

2

What is the length of the inner approach zone

10,500 feet

3

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)

4

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

5

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

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

6

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

1.64 degrees

7

What is the surface wind limitation for non USAF equipment

At discretion of supported force DZSO

8

What is the load drift constant for door bundles

1.5

9

Where are the gradients taken from on an LZ

Runway centerline

10

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)

11

What is the preferred method of marking a water DZ

The recovery boat

12

What is the surface wind limitation for USAF tandem

18 knots

13

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

14

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

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

15

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

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

From approach end

16

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

27 feet
Contingency HLZ size: 35 width x 40 length

17

What are the authorized standard DZ marking letters

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

18

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

19

How would you cancel a drop clearance

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

20

What is the Air Force form for an HLZ

AF 4303

21

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

450x590 yards

22

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

Stop / Give way to other A/C

23

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

30'

24

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

250 yards (C-130/C-17)

25

What is the formula for dispersion distance

1/2SxE=L

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

26

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

27

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

300 yards / day
350 yards / night

From the approach end

28

How long are LZ surveys good for

5 years

29

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

35:1

30

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

400x400 yards

31

Where are the flanker lights placed on a DZ at night

250 meters left and right abeam the PI

32

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

2.86 degrees

33

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

160 yards

34

What is the load drift constant for SATB

2.4

35

Where is the first panel placed in the GMRS

100 meters left of the line of flight

36

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

500 yards

37

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

Taxi leave of runway / Do not land

38

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

2 minutes

39

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

600x600 yards

40

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

20 knots

41

What is AMP 4

No markings on airfield

42

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

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

43

What is the rotor diameter for a MH-47

100 feet
Contingency HLZ size: 110 width x 140 length

44

What is the rotor diameter for a CV-22

85 feet
Contingency HLZ size: 135 width x 110 length

45

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

25 knots

46

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

47

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

48

What is the width of the clear zone

500 feet

49

What is the rotor diameter for a UH-1

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

50

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

4'-10'

51

What is the glideslope ratio for C-5

50:1

52

What is the minimum runway dimensions for a C-5

6000 x 150 feet

53

Where are the primary DCP readings taken

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

54

What glide slope ratio should be used when evaluating an HLZ

10:1

55

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

18/22 knots

56

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

Cleared for takeoff / cleared to land

57

How are strike reports given to the pilot

Distance from PI in yards and relative clock direction

58

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

13 knots

59

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

60

What is the surface wind limitation for USAF MFF water

25 knots

61

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

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

62

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

63

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

328 yards (C-130/C-17)

64

What Air Force form is used for DZ surveys

AF 3823

65

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

66

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

Cleared to taxi / return for landing

67

How do you determine actual glide slope ratio of an area

Run/rise

68

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

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

From approach end

69

What is considered a PI

Any drop landing within 25 yards of the PI

70

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

Use caution

71

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

72

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

6 inches

73

What is the load drift constant for CDS

1.5

74

What is the ceiling minimum for USAF training drops

300 foot ceiling and half mile visibility

75

What is the maximum allowed grade in the clear zone

5%

76

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.

77

What are the three methods for scoring a drop

Estimating
Pacing
Measuring

78

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

50'

79

What is the minimum runway dimensions for a C-17

3500 x 90 feet

80

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

3.0

81

What is the rotor diameter for a MH-53

75 feet
Contingency HLZ size : 125 width x 140 length

82

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

500'

83

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

200 yards / day
250 yards / night

From the approach end

84

Where is the authentication light placed in the GMRS

15 meters right of the first marker panel

85

How far away must objects be from taxiway centerlines

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

86

What is the width of the exclusion area.

700' - unoccupied
1000' - occupied

87

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

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

88

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.

89

What is the rotor diameter for a HH-60

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

90

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

13/17 knots

91

How many grade changes are allowed in the overruns

No more than 1

92

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

725 yards

93

What is the surface wind limitation for RAAMZ/CRRC

25 knots

94

What are the gradient ranges for taxiways

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

95

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%

96

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.

97

What is the distance of apron setbacks on LZs

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

98

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

200 yards / CDS
300 yards / HE

99

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

100

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

101

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

102

How do jump masters determine minimum DZ size for MFF

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

103

What are the DZ adjustments for day visual formations

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

104

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

From the outer edge of the clear zone

105

What percentage of slope would require a helicopter to hover only

15% slope

106

What is the minimum runway dimensions for a C-130

3000 x 60 feet

107

What is the surface wind limitation for USAF equipment

17 knots

108

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

Return to starting point

109

What are the two MFF DZ markings

Wind arrow and two light system

110

How long does an HLZ survey last

12 months and needs to be updated every 6 months

111

What is the surface wind limitation for USAF static line water

25 knots

112

What is the taxiway clear area width

70'

113

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

114

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)

115

What is the surface wind limitation for non USAF personnel

Discretion of unit DZSO

116

What is the width of the approach zone

2,500 feet

117

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

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

From approach end

118

What is the glideslope ratio for a C-17

20:1

119

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

550 yards

120

What Air Force form do you use for LZ/DZ

AF 4304

121

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)

122

Where are mobile TACANS placed on an LZ

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

123

Where is the final panel placed in the GMRS

150 meters away from the previous panel

124

What is the Air Force form for LZs

AF 3822

125

How long prior to use should landing zone surveys be requested

120 days

126

What is the load drift constant for HV-CDS

0

127

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

128

What is the minimum overrun for all LZ Operations

300 feet

129

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

130

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

131

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

700 yards

132

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)

133

What are the standard GMRS markings

4 letter L
6 letter T
7 letter H

134

What is the formula to determine percent grade

Rise/Run(100)=percent grade

135

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

600x1000 yards

136

What are the dimensions for a MFF wind arrow

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

137

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

138

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

25' - prepared
50' - semi prepared

139

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

500 yards / day
550 yards / night

From the approach end

140

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

No restriction

141

What is the load drift constant for HE

1.5

142

What is the criteria for runway shoulders

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

143

What must you do to tree stumps in the traffic area

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

144

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

Hasty/tactical DZ

145

What is the minimum runway dimensions for a U-28

2000 x 30 feet