PERF Flashcards
When must the ZFW and ZFWCG be manually entered on the FUEL PRED page?
If the takeoff Data Uplink/WDR is received after engine start
The wind data block depicts what?
- Wind and temp for all fixes past TOC and prior to TOD
2. Descent Forecast winds
Which significant changes require dispatcher notification?
- 100 mile deviations from route
- 4000’ from planned cruise for +30 min
- ETA +15 minutes
- Less than minimum FAR fuel reserves
- Greater than planned fuel consumption
Where are Takeoff and landing visibility requirements located?
Ops Specs in airway manual
Takeoff minima or approach minima as applicable
When is a Takeoff Alternate required?
When unable to return with Cat 1 minimums or better
What’s in the header block of the WDR
- Flight, ship, city pair number and release number
- WDR date and time
- Pax load, flight deck and FA jumpseaters
- Cargo load
What’s on the FMS block of the WDR
- FUEL - total and expected taxi
- TANK - quantities in respective tank rounded to hundreds
- RMWP - weight at gate, ZFWT, ZFWTCG
- TOWT - takeoff weight and TOGA CG
- FLAP/STAB - stab setting for each T/O flap setting
What’s on the performance block of the WDR
- Runway/intersection data
- Codes:
A. F/L1200CB - first/last cutback
B. CBL - cable extended at approach end
C. BAR - cable extended at departure end
D. BAK - cables raised at both ends - Perf Data good at or before intersection
What are the contaminate codes on the performance block
- D - dry
- W - wet
- I - ivy
- Q - quarter clutter (between .14 to .25)
- H - half clutter (.26-.50)
Can dry numbers be used for wet grooves runways
Must use wet numbers if runway is not dry
What is the number next to the contamination code in the WDR perf block
Assumed temp in C
What’s the meaning of TO in the perf block of the WDR
Full rated thrust
What’s the difference between the climb number and the RATOW number in perf block of the WDR
- Climb - climb limit weight
2. Runway allowable takeoff weight
What does the 01 next to contaminate level and assumed temp mean
- Flap setting
2. If there is a secondary contaminate then there could be a second flap setting. It will say ATTN MULTI FLAP
How can you identify the max wind values and takeoff speeds in perf block
- Under WIND - HW means minimum needed, TW means max allowed
- V1, Vr, V2
What’s the perf Limiting notes for the perf set and where is it found
- After V speeds
- APU - APU for packs(if inop the packs off takeoff)
TRI - thrust rev inop
2SP - two spoilers inop
ASP - all spoilers inop
BKI - one wheel brake or anti skid inop
IMP - takeoff using improved climb perf
What does TAXI FUEL BURN REQ on WDR perf block
Minimum amount of taxi fuel must be burned for at least one listed power setting for that runway
What’s in the notes section of WDR
- MEL-NOTES-RMKS
2. TAKEOFF ENGINE AI PENALTIES APPLIED - perf adjustments not necessary for takeoff with engine ant ice on
When must an Mel or CDL be listed on WDR
Dispatch Approval Required
Means all perf penalties applied
When must jumpseater actually occupy the Jumpseat
STAY AT GATE FOR WDR PERFORMANCE- for jumpseaters with 1P or 2P
When is a new WDR required
- Increase in weight of 1000 lbs.
2. Change in .5% MAC
How do you request new takeoff perf data
- Through ACARS TOPR function
ACARS-DAL REQUESTS-PERF TAKEOFF - Contact local gate/operations for assistance
- Dispatch
Why would a takeoff data uplink be intentionally inhibited
- Runway with cutback corrections
2. ICY listed as runway contaminant
How do you make perf corrections to the WDR
- The Flight Plan Addendum contains perf correction values
A. HW/TW
B. Bleed air penalties. No penalties then “NO CORRECTIONS REQUIRED”
C. Cutback correction - dry runway cutback or unlisted intersection
What’s the meaning of LTP on the LPR
Latest Touchdown Point to protect the LDIST on the runway
A. 7sec air run distance
B. Not less than 1000’ or more than 3000’
C. Landing long reduces margin 15% from LDIST
What does the use of () on LPR mean
When the LTP is less than 7 second calculated distance
What are ——- when used on LPR
When the 15% safety margin cannot be met or data not available for requested conditions
How do you determine landing distance on the LPR
- Verify station, runway, rwy landing distance
- First * - based on good braking action
- Second * - default setting Flaps 4, brakes low
- Cross reference for LDIST and LTP for latest touchdown
- Lower portion is for other than good runway codes and defaults LO auto brakes
Which manual are the Approach and Landing Speeds are located
The ODM Approach/Landing section
Where do you find abnormal landing distances
ODM abnormal landing section
What are the assumptions used in the calculations of the landing distance found in the abnormal section of the ODM
- Max pedal braking
2. Does not include 15% safety margin
