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Wrong takeoff performance for A319 #20

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CHH2000day opened this issue Aug 21, 2019 · 2 comments
Open

Wrong takeoff performance for A319 #20

CHH2000day opened this issue Aug 21, 2019 · 2 comments

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@CHH2000day
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image
The required runway distance doesn't increase as flex temp goes up.Instead,it goes lower for a higher flex temp.

@rklomp
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rklomp commented Sep 5, 2019

I assume the tables below might have an error, but I don't have any data to validate it. If you have or can find this data, feel free to check them.

  <!-- 
       From airport planning manual. 
       First row is runway lengths.
       First column is elevation.
       The table is takeoff limit weight. 
  -->
  <Table flaps="1+F" ISA_offset="0">
    4000	5000	6000	7000	8000	9000	10000	11000	12000	13000
    0	125	148	157	164	170	174	175	176	177	178
    2000	115	142	152	158	164	169	172	173	174	175
    4000	110	137	146	153	159	163	166	167	168	169
    6000	95	132	142	147	153	158	161	162	163	164
    8000	95	126	135	142	147	151	154	156	157	158
  </Table>

  <!-- If ISA_offset is "15", it means this table is for temperature at ISA+15°C. -->
  <Table flaps="1+F" ISA_offset="15">
    4000	4600	5000	6000	7000	8000	9000	10000	11000	12000	13000
    0	125	147	152	160	165	170	173	175	176	177	178
    2000	117	143	148	155	160	165	169	171	172	173	174
    4000	110	140	144	151	156	161	164	167	168	169	169.5
    6000	100	135	139	147	152	156	160	162	163	164	165
    8000	100	130	133	142	148	152	155	158	159	159.5	160
  </Table>

https://github.com/JetStream96/QSimPlanner/blob/develop/src/QSP/PerformanceData/TO/Default/a319_100_CFM56_TO.xml

@JetStream96
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@rklomp Looks like the error is indeed in that xml file. Thanks for localizing the issue. I'll take a look soon.

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