getting to grips with aircraft performance 如何掌握飞机性能 2(42)

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 58.0 : 69645 2-6 : 70773 2-6 : 71795 2-6 : 72436 2-6 : 72824 2-2 :

 : : 139 147 149 : 145 152 153 : 151 157 158 : 155 160 161 : 158 162 163 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 59.0 : 69116 2-6 : 70209 2-6 : 71229 2-6 : 71837 2-6 : 72025 2-2 :

 : : 140 147 149 : 146 152 153 : 152 157 158 : 156 160 161 : 158 161 162 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 61.0 : 68037 2-6 : 69091 2-6 : 70040 2-6 : 70431 2-2 : 70431 2-2 :

 : : 141 148 149 : 147 153 154 : 153 157 158 : 157 160 161 : 157 160 161 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 62.0 : 67523 2-6 : 68529 2-6 : 69459 2-6 : 69635 2-2 : 69635 2-2 :

 : : 142 148 149 : 148 153 154 : 154 158 159 : 156 159 160 : 155 159 160 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 64.0 : 66443 2-6 : 67414 2-6 : 68040 2-2 : 68040 2-2 : 68040 2-2 :

 : : 143 149 150 : 150 153 154 : 155 157 158 : 154 157 158 : 153 157 158 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 66.0 : 65363 2-6 : 66271 2-6 : 66447 2-2 : 66447 2-2 : 66447 2-2 :

 : : 145 149 150 : 151 154 155 : 153 155 156 : 152 155 156 : 151 155 156 :

 :-------:-------------:-------------:-------------:-------------:-------------:

 : 67.0 : 64817 2-6 : 65650 2-2 : 65650 2-2 : 65650 2-2 : 65650 2-2 :

 : : 146 149 150 : 152 154 155 : 151 154 155 : 151 154 155 : 150 154 155 :

 *******************************************************************************

 /MINI. ACCELERATION HEIGHT : 516.(FT) QNH ALT. : 1013.(FT)

 /MAXI. ACCELERATION HEIGHT : 2215.(FT) QNH ALT. : 2712.(FT)

Figure J18 : TLC takeoff chart example Figure J19 : OCTOPUS takeoff chart example
3.1.2.1. TLC program
The first optimization tool, developed by an aircraft manufacturer in the early
1980’s, was the Airbus TLC (Takeoff and Landing Computation) program based on
tabulated data of the AFM. During optimization, the TLC interpolates the different
1 some A320 models are certified with TLC, others with OCTOPUS.

limitations in tables and returns the MTOW and associated speeds. The TLO performance database is a “picture” of the performance charts, that were used in conventional paper flight manuals. The TLC has been designed to replace the long and tedious calculation process that was done manually, based on tables and graphs. It was also designed to facilitate Airline Flight Operations’ work by reducing the production time and the risk of errors.
3.1.2.2. OCTOPUS program
The next step in the performance calculation process, referred to as OCTOPUS (Operational and Certified Takeoff and landing Universal Software), not only offers the same advantages as TLC but also drastically changes the performance calculation method. It is no longer based on pre-computed data, but uses the “first principle” mode that allows a real on-time computation to benefit from a higher takeoff weight. Instead of smoothed pre-computed performance results, the OCTOPUS performance database contains all the airplane and engine characteristics, enabling performance computation based on physics equations. In addition, OCTOPUS introduces a new and improved takeoff chart format, with its use of multi-configurations and influences.
　
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