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Alex > OM-B Performance > Flashcards

OM-B Performance Flashcards

1
Q

What are the climb requirements for 2nd and final segment?

A
  • 2,4% gross

- 1,2% gross

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2
Q

What is the net flight path?

A
  • gross flight path reduced by 0,8%

- it starts at a screen height of 35ft and clears all obstacles at 35ft

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3
Q

How is the first segment defined?

A
  • From end of TODA to landing gear retracted
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4
Q

How is the secondsegment defined?

A
  • from landing gear up to acceleration
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5
Q

How is the final segment defined?

A
  • from clean configuration and MCT to 1500ft
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6
Q

The engine has failed after V1. Your speed is slightly higher than V2.How much faster than V2 is allowed?

A
  • V2+ 20
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7
Q

What is the procedure for an engine fail in the initial climb?(after V1, below acceleration)

A
  • Join and follow the EOSID
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8
Q

What is the procedure for an engine fail during enroute climb?(established on SID)

A
  • Turn the nearest way to EOSID HP
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9
Q

What is the procedure for an engine failure above MSA or in VMC?

A
  • If the pilot can make sure that he will clear all obstacles, he does not have to follow the EOSID.
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10
Q

When is FLEX takeoff not allowed?

A
  • When runway is contaminated

- when aircraft is dispatched with L/G extended

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11
Q

Runway is reported slippery when wet. What runway condition do you select in T/O perf?

A
  • for OAT =< 5° : ICY

- for OAT > 5° : Water 1/2”

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12
Q

A portion of the runway is reported slippery when wet. How do you take that into account for T/O perf?

A
  • subtract all sections of the runway distance that are notified as “slippery when wet”
  • select runway wet
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13
Q

Can you accept mean braking actions for runways “slippery when wet”?

A
  • No
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14
Q

What is the max crosswind for runways that are slippery when wet?

A
  • 25kt

- with parts that are reported poor or unreported: 15kt

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15
Q

How is a contaminated runway defined?

A
  • more than 25% of the runway area covered by:
  • 3mm of water,
  • slush or loose snow (equiv to 3mm water)
  • compacted snow
  • ice and wet ice
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16
Q

Do the calculation criteria for contaminated runways differ from wet runways?

A
  • No, they are the same.
17
Q

You plan to takeoff from a contaminated runway? What are the “DOs”?

A
  • TOGA

- CAPT T/O

18
Q

You plan to takeoff from a contaminated runway? What are the “Dont’s”?

A
  • Take off with >13mm of standing water or slush
  • > 30mm wet snow
  • > 100mm dry snow
19
Q

You plan to takeoff from a contaminated runway? What should you consider?

A
  • using full available runway length
  • will you have all visual guidance on the runway?
  • can you avoid tankering?
20
Q

What is the minimum runway width we can accept?

A
  • 30m
21
Q

When can you not dispatch to/ from a narrow runway?

A
  • with NWS inop

- with one or more brakes inop

22
Q

Are autolands allowed on narrow runways?

A
  • No
23
Q

When are dispatch landing calculations used?

A
  • in dispatch phase

- during inflight diversion or replanning

24
Q

For the dispatch landing distance, ALD is factorized. What are the factors for dry, wet and contaminated runways?

A
  • 1,67 DRY
  • 1,92 WET
  • 1,15 CONTAMINATED
25
Q

Where does the term “actual landing distance” (ALD) come from? How is it established? Where is it used?

A
  • It comes from flight testing
  • from 50ft, Vref, ISA temp and pressure, brakes depressed at touchdown, no revers
  • is used for dispatch landing distance calculation
26
Q

During dispatch the maximum landing weight is established. What are the criteria?

A
  • the lower of:1. max weight for most favorable runway in still air
    2. max weight of most likely runway to be assigned. If this cannot be achieved, dispatch is still permitted, provided the alternate fully complies
    If these requirements can not be achieved at aerodrome with single runway in still air due to specific wind component, dispatch is still permitted. Two alternates will be required that comply fully (do I really need to know this?)
27
Q

For landing dispatch runway is reported “slippery when wet”. What runway condition do you select in LDG perf?

A
  • for OAT =< 5° : ICY
  • for OAT > 5° : Water 1/2”
  • for one or multiple portions:
  • subtract all sections of the runway distance that are notified as “slippery when wet”
  • select runway wet
28
Q

What makes the difference between dispatched and inflight landing distance calculation?

A
  • IFLD uses a more realistic approach, takes into account temperature and runway slope
  • IFLD uses realistic friction levels provided by the RCAM
  • a factor of 1,15 is applied as standard
29
Q

How many codes / braking actions does the RCAM have?

A
  • 0 - NIL
  • 1 - poor
  • 2 - medium to poor
  • 3 - medium
  • 4 - good to medium
  • 5 - good
  • 6 - dry
30
Q

Can you refine RCAM braking actions with PIREPs?

A
  • Yes, but only towards the more conservative side
31
Q

When should you consider calculating an IFLD?

A
  • when conditions have changed since dispatch, such as:
  • runway change,wet runway,contaminated runway,autoland / autobrake used
  • WX changing rapidly (to check limits. Situational awareness!)
  • system failures
32
Q

What is the standard minimum missed approach climb gradient?

A
  • 2,5%
33
Q

What are the computation conditions for the GA gradient?

A
  • G/A flaps selected
  • one engine inop
  • remaining engine at TOGA
  • L/G up
  • by default computed at 1500ft AAL
34
Q

What are possible OEI level acceleration altitudes?

A
  • 1500 AAL in VMC or if on EOSID
  • MISAP level accel altitude (if found on IAC)
  • minimum flight altitude on missed approach (MSA / TAA / MRVA)
  • initial G/A altitude
35
Q

If G/A gradient can not be achieved, what can you do?

A
  • select a higher minimum

- select flaps 3

Alex (3 decks)

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