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OMB > 2. Performance > Flashcards

2. Performance Flashcards

1
Q

Aircraft Types and Fitted Brakes

A
  • B737-8200: Category B (Carbon),
  • B737-800W & SFP: Category C (Steel)
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2
Q

B737 Perfromance Class and Aerodrome Reference Code

A
  • Performance Class A,
  • Aerodrome Reference Code 4C
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3
Q

Narrow Runway Definition

A
  • Has width or cleared width < 45m,
  • Minimum width 30m
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4
Q

Narrow Runway Restrictions

A

Takeoff:
- CPTs T/O unless specified in the AFB,
- Maximize Fixed Derate and Assumed Temperature,
- Both Thrust Reversers must be operative,
- Anti-skid must be operative,
- V1mcg is incremented 5KT

Landing:
- CPTs LDG unless specified in the AFB,
- Both Thrust Reversers must be operative,
- Anti-skid must be operative. If inoperative during flight, diversion to 45m RWY recommended,
- Autoland not permitted,
- For failures that affect directional control or braking, diversion to 45m RWY recommended

Crosswind Limitations:
- Decrease Normal RWY limits by 1KT per 1m reduction below 45m

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5
Q

SFP Differences

A
  • Idle Thrust Delay is reduced from 5s to 2s to reduce landing distance,
  • Flight spoiler and ground spoiler deflection is increased to 60 degrees,
  • Configured with Sealed LE Slats for all T/O Flaps to reduce drag,
  • LE Devices move to FULL EXT only at Flaps 30 and 40
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6
Q

3 Kelvin-Spread Rule

A
  • Temperature 3 degrees or less and,
  • Dew point spread 3 degrees or less,
  • RWY Surface condition may be more slippery than anticipated
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7
Q

WSR

A
  • Wet Skid-Resistant Runway,
  • Credit only applied when RWYCC 5 and Anti-skid operative
  • If credit not used modify OPT/NOTAM,
  • No credit used in RTOW charts
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8
Q

Contaminated Runway Definition

A
  • Contamination more than 25% of one-third of the runway and,
  • Depth of Slush/Standing Water/Wet Snow 4mm or more or,
  • Snow (Dry or Compacted), Frost, Ice, Wet Ice present
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9
Q

Maximum Allowed Contaminant Depth

A
  • Slush/Standing Water/Wet Snow: 13mm,
  • Dry Snow: 100mm
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10
Q

Slippery vs Contaminated Runway for T/O

A
  • Contaminated: Affects both acceleration and deceleration,
  • Slippery: Affects only deceleration
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11
Q

RWYCC and Displaced Threshold/Stopway/Starter Extension

A
  • RWYCC refers to the physical extent of the runway,
  • It does not consider declared distances
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12
Q

RWYCC Upgrading

A
  • May be done after application of friction improvement process,
  • Only RWYCC 0 and 1 may be upgraded to maximum RWYCC 3
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13
Q

SPWR

A
  • Specially Prepared Winter Runway,,
  • Contaminated with compacted snow or ice which treated with specific procedures,
  • RWYCC may be reported as a maximum of RWYCC 4
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14
Q

RWYCC During Rainfall

A

Assume a RWYCC 2 when:
- If Standing Water depth 4mm or more and,
- Moderate or Heavy Rain on an Ungrooved RWY or,
- Heavy Rain on a Grooved RWY

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15
Q

Dry Snow and Wet Snow Reported on Top of Each Other

A

Use conseravtive minimum depth of 4mm of top contaminant

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16
Q

RWYCC Usage on T/O Calculation

A
  • For RWYCC 5 or 4 use RWYCC,
  • For RWYCC 3 or 2 use RCR to identify and use contaminant type and depth IF REQUIRED
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17
Q

Crosswind Limitations For Takeoff

A
  • RWYCC 6: 33KT,
  • RWYCC 5: 25 / 33KT* ,
  • RWYCC 4: 22KT,
  • RWYCC 3: 20KT,
  • RWYCC 2: 15KT,
    • : Flaps 5 or greater, CG < 25%
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18
Q

CG < 25% Stabilizer Trim for T/O

A

Rougly 5 Units or less

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19
Q

Crosswind Limitations for Landing

A
  • RWYCC 6: 33KT,
  • RWYCC 5: 33KT,
  • RWYCC 4: 33KT,
  • RWYCC 3: 25KT,
  • RWYCC 2: 17KT
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20
Q

Takeoff Distance Required

A

Greater of:
- Takeoff and climb to 35/15FT with an engine failure at Vef or,
- 115% of the distance to Takeoff and climb to 35FT with all engines operating

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21
Q

Takeoff Run Required

A

Greater of:
- Takeoff and climb to equidistant between liftoff and 35/15FT with an engine failure at Vef or,
- 115% of the distance to Takeoff and climb to equidistant between liftoff and 35FT with all engines operating

22
Q

Accelerate Stop Distance Required

A

Greater of:
- Accelerate with all engines operating and come to a complete stop with engine failure at Vef or,
- Accelerate with all engines operating and come to a complete stop with all engines operating

23
Q

Takeoff Climb Limited Weight

A

To achieve 2.4% Gross Climb Gradient at the beginning of the Second Segment with OEI

24
Q

Tyre Speed Limits

A
  • B737-800: 195KT,
  • B737-8200: 204KT
25
Q

Balanced V1

A

OEI T/O distance equals to Accelerate Stop Distance

26
Q

Optimum V1

A
  • Normally used for all T/O Calculations,
  • To calculate highest allowed weight by taking advantage of stopway and clearway
27
Q

Standard EOSID

A
  • Straight ahead,
  • Usually at 15NM or more from the physical start of the T/O RWY
28
Q

Special EOSID

A
  • Turn required before joining hold pattern with or without speed restriction,
  • 15 degrees AOB up to V2+20KT, 25 degrees AOB above Flaps Up Speed,
  • Observe speed restriction even above MFRA,
  • OPT calculated MFRAs are cold temperature corrected (RTOWs are not)
29
Q

Standard SID Gradient

A

3.3% otherwise depicted specifically on the chart

30
Q

Obstacle Clearance Path

A
  • Starts from 35FT at the end of the TOD,
  • Vertically clears obstacles by at least 35FT,
  • Horizontally by Half the wing span (18m) + 60m + 0.125 x D (max 900m),
  • D: Distance from DER
  • In case of a bank > 15 degrees, clearance increases to 50FT
31
Q

Minimum Turn Height

A
  • Not before DER,
  • Not before 59FT (half of wingspan)
32
Q

EOSID Holding Patterns

A
  • Where possible AIP holdings are used,
  • Otherwise calculated as 5NM legs with 2NM turn radius
33
Q

MCT Selection

A

Must be set after 5 minutes of T/O Thrust

34
Q

Engine Failure During Climb Out

A
  • Below 1000FT AAL, follow EOSID with speed restrictions,
  • If Deviation Point or speed for EOSID turn has been passed, continue with the SID or ATC,
  • Deviation Point: Point at which the EOSID diverges from SID
35
Q

Driftdown Path Clearance

A
  • Clears all terrain and obstacles within 5NM of intended track by at least 1000ft,
  • From cruising altitude to an aerodrome, clears all terrain and obstacles within 5NM of intended track by at least 2000ft,
  • Must have positive gradient at 1500FT AAL at the related aerodrome
36
Q

Landing Dispatch

A
  • Dry RWY: Actual LDR x 1.67,
  • Wet RWY: Actual LDR x 1.67 x 1.15
37
Q

Reverse Thrust N1 Values

A
  • Second Detent: 70-75% N1,
  • Max: 80-82% N1
38
Q

Company Reverse Thrust Restriction

A
  • For a Non-Dry RWY,
  • When Crosswind > 15KT,
  • Do not take Reverser credit
39
Q

Thrust Reverser Inoperative Landing Restriction

A

For Dispatch:
- On OPT REV credit may be included for contaminated RWYs,
- On QRH no credit will be used

Enroute:
- Use OPT NNC/MEL
- On QRH no credit will be used

40
Q

Company Policy for NNC Landing Distances

A
  • Multiply distances from OPT/QRH by 1.3,
  • The correction applies for Dry, BA Good (Wet) and Medium figures,
  • Minimum LDA accepted is 1900m,
  • Exceptions: Uncontained fire/security threat or delaying will compromise the overall safety
41
Q

OPT Gust Procedure

A
  • First enter direction and gust to check crosswind limits,
  • Then enter actual mean value to do performance calculation
42
Q

OPT ENG + WING AI Selection

A

Selected when Wing AI expected to be used after T/O and below MSA

43
Q

Assumed Temperature Restrictions

A
  • Anti-skid or Thrust Reverser INOP,
  • EEC Alternate Mode,
  • Snow, Slush, Ice or Standing Water on the RWY,
  • Aircraft De/Anti-iced (also select minimum TO-1 or 24K),
  • Potential Windshear,
  • XWind > 10KT (when no ATRT calculated select 1 rate above),
  • When Actual TOW within 500KG (1000KG if climb limited) within hardcopy RTOW,
  • Landing Gear Extended flight,
  • Bleeds Off T/O,
  • Prohibited by Airfield Brief
44
Q

MFRA / MFRH

A
  • Company policy uses 1000FT AAL as a minimum MFRH,
  • OPT calculated MFRA includes cold temperature correction
45
Q

Thrust Reverser Credit for Takeoff

A

Only when dispatching on a Wet Runway and:
- With both Thrust Reversers operative,
- Anti-skid operative,
- All Brakes operative

Regulations allow deceleration credit for:
- One thrust reverser in an OEI case and,
- Two thrust reverser in all engine case

46
Q

Default Thrust Reduction and Acceleration Heights

A
  • Thrust Reduction: 1500FT,
  • Acceleration: 1000FT
47
Q

Missed Approach Climb Gradient

A
  • Default 2.5%,
  • Where higher MACG present, ATC may allow standard 2.5% on request
48
Q

OPT Dispatch Landing Credits

A
  • Assumes MAX Manual Braking,
  • Auto Speed Brakes,
  • Temperature and RWY Slope not included,
  • REV may only be selected for contaminated RWYs
49
Q

Autoland Landing Distance Increment

A
  • Flaps 40: 140m,
  • Flaps 30: 185m
50
Q

OPT Brake Cooling Times Assumption

A

Parking brakes are released

51
Q

RWYCC and RTOW Usage

A
  • Used for RWYCC 6 and 5,
  • OPT required for < RWYCC 5

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