8 Ekim 2018

Aircraft Takeoff Performance Software Development
[ Experimental ]





Latest added:

  • Wind direction/velocity entry algorithm is added to find tailwind/headwind & crosswind components for selected runway,
  • QNH input field is set to allow only 4 digits input,
  • Contaminated runway(standing water, slush, dry snow) depth values are added with POPT(15) scap parameter,
  • TODA, ASDA, TURN are added to runway list in airports.xml,
  • Line up selection feature is added as two options :
       a) Min. (Boeing advice)
         b) Normal(~ 3 x Min.)

         (for B738 NG aircrafts) :

         Min line-up for L-turn : 11/26 m. for U-turn : 19/34 m.
         Norm line-up for L-turn : 63/78 m. for U-turn : 87/102 m.

  • Stop margins associated with V1 values are calculated taking into account the selected line-up & turn type of runway,
          STOP MARGIN V1 min. = ASDA* – CLIMIT(12)**
          STOP MARGIN V1 bal.  = ASDA* – CLIMIT(24)**
          STOP MARGIN V1 max. = ASDA* – CLIMIT(18)**
*ASDA = TORA + SWY
**CLIMIT(12), CLIMIT(18), CLIMIT(24) : Required Accelerated-Stop Distance for associated with the related V1.
  •  EFP(Engine Failure/Out Procedure) text is added. 
Next revision highlights :

  • Customized MEL/CDL items will be created in XML format(or any reasonable format) as a database which has related penalties will be added. Proper penalties will be applied and shown on interface when MEL/CDL items are selected,

  • Calculation results for assume/flex temperature will be listed as (Max TASS, Max TASS-2, Max TASS-4 degrees C) in a combobox(dropdown) menu,
  • CG(%MAC) entry will be added to calculate horizontal stabilizer trim settings,
  • EFP(Engine Failure/Out Procedure) visualization will be shown for selected runway,
  • Boeing 737-8 MAX & Airbus aircraft types will be added,
  • Calculation results will be compared with EFRAS takeoff performance software by Condor and TOPAS takeoff performance software by LHSystems,
  • Final Calculation results will be tested/compared with Boeing AFM-DPI & PET,
  • Will be tested for memory & CPU management,....