Airport Engineering
The main disadvantage of angle nose out parking configuration of aircraft is that the

Overall apron area required is more
Aircraft rear loading door is far away from terminal building
All listed here
Hot blast is directed towards the terminal building

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Airport Engineering
Speed of

Sound at 0°C is 1190 kmph
Sound varies 2.4 kmph per degree centigrade rise in temperature
All listed here
Sound at 0°C is called one Mach

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