2000 - Wet.Contaminated Runway Data.pdf

8/10/2019 2000 - Wet.Contaminated Runway Data.pdf

1/18

Learjet 35/35A/36/36A with Century III Wing Wet/ContaminatedRunway Data

11-30-2000 -1

WET/CONTAMINATED RUNWAY DATA

The performance information in this section is notFAA approved and use is

not mandatory. These data represent the best available information for plan-

ning and use during operations on wet and contaminated runway surfaces.

Data were derived by calculation methods which are recognized as aviation in-

dustry standards. The use of this information will enhance the safety of opera-tions on wet and contaminated runways.

Refer to Section V, PERFORMANCE DATA of the FAA Approved Airplane

Flight Manual, for data not covered in this section.

This addendum does not apply to holders of FM-024

(35A/36A, United Kingdom)NOTE

Title


2/18

LIST OF EFFECTIVE PAGES

Use this page to determine the current status of this document. Pages affected by the current

change are indicated by an asterisk (*) immediately preceding the page number.

Dates of issue for original and changed pages are:

Learjet 35/35A/36/36A with Century III Wing Wet /ContaminatedRunway Data

11-30-2000 LOEP

Original . . . . . . . . . . . . . .O. . . . . . . . . . . . . 30 Nov 2000

This list shows the aircraft applicability of the pages in this addendum. Only the pages

applicable to the aircraft assigned to this addendum must be retained. Pages not appli-

cable to the aircraft may be removed.

Page Change Aircraft Affected

Title .............................................O All

LOEP ..........................................O All

TOC ............................................O All

1 thru 4........................................O All

5 ..................................................O Aircraft with Non-Metric Flight Manuals

5.1 ...............................................O Aircraft with Metric Flight Manuals

6 ..................................................O All



8 ..................................................O All



10 thru 12....................................O All


3/18


11-30-2000 TOC

TABLE OF CONTENTS

Wet and Contaminated Runway Performance Data...........................1

General ......................................................................................................1

Standard Performance Conditions.............................................................2

Definitions of Runway Conditions............................................................2Wet .......................................................................................................2

Contaminated.......................................................................................2

Standing Water, Slush or Loose Snow...........................................2

Compacted Snow...........................................................................2

Wet Ice...........................................................................................2

Takeoff from Wet Runways.......................................................................3

Takeoff from Contaminated Runways ......................................................3

Takeoff Distance Factors (Figure 1)..........................................................5Takeoff Speeds (Figure 2) .........................................................................6

Contaminated Runway Takeoff Speeds

Moderate Contaminant Depth (Figure 3).............................................7

Heavy Contaminant Depth (Figure 5) .................................................9

Contaminated Runway Takeoff Speeds Correction Chart

Moderate Contaminant Depth (Figure 4).............................................8

Heavy Contaminant Depth (Figure 6) ...............................................10

Landing on Wet Runways .......................................................................11

Landing on Contaminated Runways .......................................................11

Landing Distance Factors (Figure 7).......................................................12


4/18


11-30-2000 1

WET AND CONTAMINATED RUNWAY PERFORMANCEDATA

GENERAL

The following information and procedures have been prepared by Learjet asguidance material for use when operating on wet runways or runway surfaces

contaminated by standing water, slush, loose snow, compacted snow or ice.

The data have been prepared using industry accepted calculations todetermine the effects of contaminated runway surfaces on the accelerat-ing ground roll and braking ground roll. The effects of actual conditionsmay differ from those used to establish this data.

The level of safety is decreased when operating on wet or contaminatedrunways, therefore, every effort should be made to ensure that the run-

way surface is cleared adequately of any significant precipitation.

Wet runway performance data were estimated assuming the water to be

of uniform depth and density.

Contaminated runway performance data were calculated assuming that

the runway is completely contaminated, with the contaminant (standing

water, slush, or snow) to be of uniform depth and density. When operating on wet or contaminated runways, ground handling char-

acteristics will not be as good as can be achieved on dry runways. The

variability of surface conditions, and crosswinds should be taken into

consideration.

Wet/Contaminated Runway data was developed in consideration of the

following aircraft configurations:

- Century III Wing (with or without Softflite)

- FC-200 or FC-530 Autopilot

- Rosemount or Non-Rosemount Pitot Static System

These data are notapplicable to aircraft with the Standard

Wing or with any third party modifications that affect per-

formance.

NOTE


5/18

Wet/Contaminated Learjet 35/35A/36/36A with Century III WingRunway Data

2 11-30-2000

STANDARD PERFORMANCE CONDITIONS

All wet and contaminated runway performance in this section is based on thefollowing performance conditions:

Anti-Skid System ON for takeoff and landing

Takeoff flap position on wet runways 8 or 20

Takeoff flap position on contaminated runways 20

Landing flap position 40

Wet/Contaminated runway data does not include reverse

thrust effects.

DEFINITIONS OF RUNWAY CONDITIONS

WET

A runway is considered to be wet when it has a shiny appearance due to a thin

layer of water on it, but without significant areas of standing water.

A runway with greater than 0.125 inch (3 mm) of standing

water would be a contaminated runway.

CONTAMINATED

STANDING WATER, SLUSH OR LOOSE SNOW A runway is

considered to be contaminated when more than 25% of the runway

surface (whether in isolated areas or not), within the required length

and width being used, is covered by more than 0.125 inch (3 mm) of

standing water or by slush or loose snow, equivalent to more than

0.125 inch (3 mm) of water.

COMPACTED SNOW A runway is considered to be contaminated

by compacted snow when covered by snow which has been compacted

into a solid mass which resists further compression and will hold

together or break into lumps if picked up.

WET ICE A runway is considered to be contaminated when brak-

ing action is expected to be very low, due to the presence of wet ice.

NOTE

NOTE


6/18


11-30-2000 3

TAKEOFF FROM WET RUNWAYS

All wet runway takeoff performance data is based on the following perfor-

mance conditions:

Flaps 8 or 20

Anti-Skid On

Runway gradient must be between -2.0% and +2.0%

To account for reduced braking coefficients during initial

takeoff power setting, release brakes and rapidly move

thrust levers to the takeoff power setting.

Wet runway takeoff speeds can be found in Figure 2. Find the appropriate dry

runway V1speed on the left hand side of Figure 2 and go across to the appro-

priate flap setting to find the wet runway V1speed.

Wet runway takeoff distance is calculated by multiplying the corrected takeoff

field length (dry), determined from the TAKEOFF DISTANCE chart (Section

V, PERFORMANCE DATA), by the appropriate wet takeoff distance factor

(Figure 1).

WET TAKEOFF DISTANCE = TAKEOFF FIELD LENGTH (dry) x WET

TAKEOFF DISTANCE FACTOR.

TAKEOFF FROM CONTAMINATED RUNWAYS

Contaminated runway takeoff performance data is based on the following per-

formance conditions:

No tailwind component

Flaps 20

Anti-Skid On

Runway gradient for Moderate, Heavy Contaminant depths and Com-

pacted Snow must be between -2.0% and +2.0%

Runway gradient for Wet Ice must be between 0.0% and +2.0%

To account for reduced braking coefficients during initial

takeoff power setting, release brakes and rapidly move

thrust levers to the takeoff power setting.

The CONTAMINATED RUNWAY TAKEOFF SPEEDS (Moderate and

Heavy Contaminant Depth) data are shown in terms of altitude, temperature,

and weight. The CONTAMINATED RUNWAY TAKEOFF SPEEDS (Moder-

ate and Heavy Contaminant depth) correction charts includes corrections forheadwind, runway gradient, and anti-ice systems on or off.

If there is no V1speed for the given condition, the takeoff

is not permitted.

NOTE

NOTE

NOTE


7/18

Wet/Contaminated Learjet 35/35A/36/36A with Century III WingRunway Data

4 11-30-2000

The contaminated (Compacted Snow and Wet Ice) runway takeoff speeds can

be found in Figure 2. Find the appropriate dry runway V1speed on the left

hand side of Figure 2 and go across to the appropriate column to find the com-

pacted snow or wet ice runway V1speed.

Contaminated runway takeoff distance is calculated by multiplying the takeofffield length (dry runway), determined from the TAKEOFF DISTANCE chart

(Section V, PERFORMANCE DATA), by the appropriate contaminated takeoff

distance factor (Figure 1).

CONTAMINATED TAKEOFF DISTANCE = TAKEOFF FIELD LENGTH

(dry) x CONTAMINATED TAKEOFF DISTANCE FACTOR.

Distance factors for runways contaminated with standing water, slush, loose

snow, compacted snow or wet ice have been calculated assuming that the run-

way is completely contaminated. However, selection of the type and amount

of contaminant should be based on the runway conditions where the high speed

portion of the takeoff will occur, and in the case of an ice covered runway,

where braking would be used during a rejected takeoff.

Contaminated runway data are provided for four different runway conditions:

Moderate contaminant depths of standing water, slush and loose snow.

Heavy contaminant depths of standing water, slush and loose snow. Compacted snow.

Wet ice.

TAKEOFF CONTAMINANT DEPTHS

CONTAMINANT MODERATE HEAVY

STANDING WATER 0.125 in (3 mm) 0.25 in (6 mm)

SLUSH 0.15 in (3.8 mm) 0.30 in (7.6 mm)

LOOSE SNOW (WET) 0.25 in (6.4 mm) 0.50 in (12.7 mm)

LOOSE SNOW (DRY) 0.95 in (24.1 mm) 1.90 in (48.3 mm)


8/18


11-30-2000 5

TAKEOFF DISTANCE FACTORSAnti-Skid ON

* Takeoff data for Compacted Snow and Wet Ice is only valid for

40 F (4.4 C) and below.

+ Runway gradient for Wet Ice must be between 0.0% and

+2.0%.

Determine V1 from appropriate chart. If there is no V1 speed for a

given condition, the takeoff distance is not valid; therefore, takeoff is

not permitted.

The factors from this table are to be multiplied by the takeoff field

length (dry runway), determined from the TAKEOFF DISTANCE

chart (Section V, PERFORMANCE DATA) for the appropriate flap set-

ting.

WET/CONTAMINATED TAKEOFF DISTANCE = TAKEOFF FIELD

LENGTH (dry) x WET/CONTAMINATED TAKEOFF DISTANCE FAC-

TOR.

Figure 1

TAKEOFF DISTANCE FACTORS

WET CONTAMINATED 20 FLAPS

WEIGHTLB

8 FLAPS 20 FLAPSModerate

Cont. DepthHeavy

Cont. DepthCompacted

Snow *WET ICE * +

10,000 1.4 1.4 2.2 2.3 1.6 3.3

11,000 1.4 1.4 2.0 2.3 1.5 3.3

12,000 1.4 1.4 1.9 2.3 1.5 3.2

13,000 1.3 1.3 1.8 2.3 1.4 3.0

14,000 1.2 1.3 1.8 2.2 1.4 2.9

15,000 1.2 1.2 1.7 2.2 1.3 2.6

16,000 1.2 1.2 1.7 2.0 1.2 2.317,000 1.2 1.2 1.6 2.0 1.2 2.1

18,000 1.2 1.2 1.6 2.0 1.2 1.9

18,300 1.2 1.2 1.6 2.0 1.2 1.8

35A-200


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Learjet 35/35A/36/36A with Century III Wing Wet /ContaminatedRunway Data

11-30-2000 5.A

(Metric)

TAKEOFF DISTANCE FACTORSAnti-Skid ON




+2.0%.

Determine V1 from appropriate chart. If there is no V1 speed for a

given condition, the takeoff distance is not valid; therefore, takeoff is

not permitted.

The factors from this table are to be multiplied by the takeoff field

length (dry runway), determined from the TAKEOFF DISTANCE

chart (Section V, PERFORMANCE DATA) for the appropriate flap set-

ting.

WET/CONTAMINATED TAKEOFF DISTANCE = TAKEOFF FIELDLENGTH (dry) x WET/CONTAMINATED TAKEOFF DISTANCE FAC-

TOR.

Figure 1.1

TAKEOFF DISTANCE FACTORS

WET CONTAMINATED 20 FLAPS

WEIGHTKG

8 FLAPS 20 FLAPSModerate

Cont. DepthHeavy

Cont. DepthCompacted

Snow *WET ICE * +

5000 1.4 1.4 2.0 2.3 1.5 3.3

5500 1.4 1.4 1.9 2.3 1.5 3.2

6000 1.3 1.3 1.8 2.3 1.4 3.0

6500 1.2 1.3 1.8 2.2 1.4 2.8

7000 1.2 1.2 1.7 2.1 1.3 2.5

7500 1.2 1.2 1.6 2.0 1.2 2.2

8000 1.2 1.2 1.6 2.0 1.2 2.08301 1.2 1.2 1.6 2.0 1.2 1.8

(Metric)

5.1

35AM-200


10/18


11-30-2000 6

TAKEOFF SPEEDSAnti-Skid ON




+2.0%.

For VRand V2speeds use dry runway Rotation Speed VRand TakeoffSafety Speed V2. Refer to Section V, PERFORMANCE DATA of the

AFM.

VR must never be less than V1. If dry VR from Section V,

PERFORMANCE DATA of the AFM, is less than V1from the above

table, increase VRand V2by the difference between VRand V1.

Figure 2

WET / CONTAMINATED V1 KIAS

DRY WET CONTAMINATED 20 FLAPS

V1KIAS8 FLAPS 20 FLAPS

ModerateCont. Depth

HeavyCont. Depth

CompactedSnow *

WET ICE * +

103 103 103 103 103

105 103 103 103 103

110 103 103 See See 103 103

115 108 109 Figures 3 & 4 Figures 5 & 6 105 103

120 113 113 110 103

125 117 118 115 103

130 122 123 120 103

135 128 128 128 103

140 134 133 133 103

145 140 136 138 103

35A-201


11/18


12/18

Learjet 35/35A/36/36A with Century III Wing

11-30-2000

V1 ~ KIAS

ALT WT TEMPERATURE C

FT KG -40 -30 -20 -10 0 10 15 20 25 30 35 40 45 50

SEA

LEVEL

5000 103 103 103 103 103 103 103 103 103 103 103 105 109 115

5500 103 103 103 103 103 103 103 103 103 103 104 107 112 117

6000 103 103 103 103 103 103 103 103 103 103 106 110 115

6500 103 103 103 103 103 103 103 103 103 106 109 114

7000 105 105 105 105 105 105 105 105 107 111 115

7500 111 111 111 111 111 111 111 111 114 118

8000 118 118 118 118 118 118 118 118 121 126

8301 123 123 123 123 122 122 121 122 126

2000

5000 103 103 103 103 103 103 103 103 103 103 105 109 115

5500 103 103 103 103 103 103 103 103 103 104 108 113 118

6000 103 103 103 103 103 103 103 103 104 107 111 115 111

6500 103 103 103 103 103 103 103 104 106 110 114

7000 105 106 105 105 105 105 106 108 112 116

7500 112 112 112 112 112 112 112 115 119

8000 119 119 119 119 119 119 119 122 128

8301 124 124 124 123 122 123 123 126

4000

5000 103 103 103 103 103 103 103 103 103 105 109 113

5500 103 103 103 103 103 103 103 103 105 108 112 116

6000 103 103 103 103 103 103 103 104 107 111 115

6500 103 103 103 103 103 103 104 107 110 114

7000 106 106 106 106 105 107 109 112 1167500 112 113 112 112 112 114 116 119

8000 119 120 120 119 118 120 123

8301 124 124 123 123 122 125 127

6000

5000 103 103 103 103 103 103 103 103 105 108 113 117

5500 103 103 103 103 103 103 103 105 108 112 115

6000 103 103 103 103 103 104 105 108 111 114

6500 103 103 103 103 103 106 108 111 114

7000 106 106 106 106 106 110 113 117

7500 113 113 112 112 113 117 120

8000 120 120 119 119 119

8301 124 124 123 122 123

8000

5000 103 103 103 103 103 103 103 105 109 112 117

5500 103 103 103 103 103 104 104 108 111 115

6000 103 103 103 103 103 105 107 111 114

6500 103 103 103 103 104 107 110 114

7000 106 106 106 106 108 113 117

7500 113 113 112 112 115

8000 120 120 119 118 122

8301 124 124 123 122 127

Figures in shaded area are above engine temperature limits and a

10,000

5000 103 103 103 103 103 104

5500 103 103 103 103 103 105

6000 103 103 103 103 103 107

6500 103 103 103 103 106 111

7000 106 105 105 107 111

7500 112 111 111 113 119

8000 119 118 118 120

8301 123 122 122 125

V1 ~

ALT WT TEM

FT KG -40 -30 -20 -10 0 10

ABOVE

LIMITS

NOTE: This table was prepared for zero wind, zero runw

other than these, apply the result from this table to t

For VRand V2speeds use dry runway Rotation Speed VRand

mance Data of the AFM.


13/18


11-30-2000

CONT

TAKEOF

Mo

140

135

130

125

120

115

110

105

100

0 10 20 30 -2 -1 0

RUNWAY GRADIENT ~ %WIND ~ KNOTS

UNCORREC

TED

CRITICAL

ENGINE

FAILURE

SPEED(

V1)~

KIAS

ANT

1 2 OFF

HEAD

REFERENCE

LINE

REFERENCE

LINE

DOWN

UP

1 2

3

4 5

6

EXAMPLE:

1. Uncorrected V1(from table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 KIAS

2. Headwind. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 KTS

3. Runway Gradient Reference Line

4. Runway Gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.0% DOWN

5. Anti-Ice System Reference Line

6. Anti-Ice System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF

7. Corrected V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 KIAS

CAUTION

VRmust never be less than V1. If dry VR from

Section V, PERFORMANCE DATA of the AFM,

is less than V1 from the above figure, increase

VR and V2 by the difference between VR and

V1.


14/18


15/18


11-30-2000

V1 ~ KIAS

ALT WT TEMPERATURE C

FT KG -40 -30 -20 -10 0 10 15 20 25 30 35 40 45 50

SEA

LEVEL

5000 103 103 103 103 103 103 103 103 107 112 119 122 124 125

5500 103 103 104 105 105 105 105 106 110 116 120 123 124 125

6000 106 108 108 108 109 109 109 109 113 118 121 123 125

6500 109 111 111 112 112 112 112 112 115 120

7000 115 115 116 116 116 116 116 116 119 122

7500 122 123 123 122 122 122 122 122 125

8000 129 129 129 129 129 128 128 128 130

8301 132 132 132 132 132 132 131 131 134

2000

5000 103 103 103 103 103 104 104 108 113 119 122 123 125

5500 105 107 107 107 107 107 107 111 116 121 123 124 125

6000 109 110 111 111 110 110 110 114 119 122 124 125

6500 112 114 114 114 113 113 113 117 121

7000 117 118 118 117 117 117 117 120 123

7500 124 124 124 124 123 123 123 125

8000 130 130 130 129 129 128 128 131

8301 133 133 133 132 132 132 131 134

4000

5000 103 104 104 104 104 107 110 114 118 121 123 124

5500 107 108 108 108 107 110 112 116 120 122 124 125

6000 111 111 111 111 111 113 115 119 121 123 124

6500 114 114 114 114 113 115 117 121 123

7000 118 118 118 118 117 119 121 1237500 124 124 124 123 123 124 126

8000 130 130 129 129 128 129 131

8301 133 133 132 132 131 133 134

6000

5000 105 105 105 104 105 110 114 117 121 123 124 125

5500 108 108 108 108 109 113 116 119 122 124 125

6000 112 112 112 111 111 115 118 121 123 124

6500 115 115 114 114 114 118 120 123

7000 118 118 118 117 118 121 123

7500 124 124 124 123 123

8000 130 130 129 128 128

8301 133 133 132 131 131

8000

5000 106 106 105 104 108 113 116 119 122 124 123

5500 109 109 109 108 110 115 118 121 123 124

6000 113 112 112 111 113 118 120 123 125

6500 116 115 114 113 115

7000 119 119 118 117 119

7500 125 124 123 122 124

8000 130 129 128 127

8301 133 133 131 130

Figures in shaded area are above engine temperature limits and a

10,000

5000 104 103 103 105 110 115

5500 108 107 107 108 112 117

6000 111 111 110 112 115 119

6500 114 113 112 114 117 101

7000 118 117 116 117 121

7500 123 122 121 122

8000 128 127 126

8301 132 130 129

V1 ~

ALT WT TEM

FT KG -40 -30 -20 -10 0 10

ABOVE

LIMITS

NOTE: This table was prepared for zero wind, zero runw

other than these, apply the result from this table to t

For VRand V2speeds use dry runway Rotation Speed VRand

mance Data of the AFM.


16/18


11-30-2000

CONT

TAKEOF

He

140

135

130

125

120

115

110

105

100

0 10 20 30 -2 -1 0

RUNWAY GRADIENT ~ %WIND ~ KNOTS

UNCORR

ECTED

CRITICAL

ENGINE

FAILU

RE

SPEED(

V1)~

KIAS

ANT

1 2 OFF

HEAD

REFERENCE

LINE

REFERENCE

LINE

DOWN

UP1 2

5

64

3

EXAMPLE:

1. Uncorrected V1(from table) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 KIAS

2. Headwind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 KTS

3. Runway Gradient Reference Line

4. Runway Gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.0% DOWN

5. Anti-Ice System Reference Line

6. Anti-Ice System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF

7. Corrected V1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 KIAS

CAUTION

VRmust never be less than V1. If dry VR from

Section V, PERFORMANCE DATA of the AFM,

is less than V1 from the above figure, increase

VR and V2 by the difference between VR and

V1.


17/18


11-30-2000 11

LANDING ON WET RUNWAYS

All wet runway landing performance data is based on the following perfor-

mance conditions:

Flaps 40

Anti-Skid On

Runway gradient must be between -2.0% and +2.0%

Wet runway landing distance is calculated by multiplying the actual landing

distance (dry runway), determined from the ACTUAL LANDING DIS-

TANCE chart (Section V, PERFORMANCE DATA), by the appropriate wet

landing distance factor (Figure 7).

WET LANDING DISTANCE = ACTUAL LANDING DISTANCE (dry) x

WET LANDING DISTANCE FACTOR.

LANDING ON CONTAMINATED RUNWAYS

All contaminated runway landing performance data is based on the following

performance conditions:

No tailwind component

The runway gradient must be between -1.0% and +2.0%

Flaps 40

Anti-Skid OnContaminated runway landing distance is calculated by multiplying the actual

landing distance (dry runway), determined from the ACTUAL LANDING

DISTANCE chart (Section V, PERFORMANCE DATA), by the appropriate

contaminated landing distance factor (Figure 7).

CONTAMINATED LANDING DISTANCE = ACTUAL LANDING DIS-

TANCE (dry) x CONTAMINATED LANDING DISTANCE FACTOR.

Contaminated runway landing distance factors are provided for the followingcontaminants:

LANDING CONTAMINANT DEPTHS

CONTAMINANT (Depths up to)

STANDING WATER 0.75 in (19.1 mm)

SLUSH 0.88 in (22.4 mm)

LOOSE SNOW 1.50 in (38.1 mm)

COMPACTED SNOW WET ICE


18/18


11 30 2000 12

LANDING DISTANCE FACTORSFLAPS 40

Anti-Skid ON

* Landing data for compacted snow and wet ice only valid for

40F (4.4 C) and below.

To determine the landing distance on wet/contaminated runway, apply theabove factors to the Actual Landing Distance (dry runway), (Section V, PER-

FORMANCE DATA).

WET/CONTAMINATED LANDING DISTANCE = ACTUAL LANDING

DISTANCE (dry) x WET/CONTAMINATED LANDING DISTANCE FAC-

TOR.

Figure 7

LANDING DISTANCE FACTORS

WET CONTAMINATED

StandingWater

Slush Loose SnowCompacted

Snow *Wet Ice *

1.4 2.2 2.2 2.2 1.7 3.9

35A-202

Documents

2000 - Wet.Contaminated Runway Data.pdf