Calchas
  • Member for 6 years, 8 months
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What would have happened when the Concorde's low-pressure emergency system brought it lower mid-flight?
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7 votes

The pilots had a clear procedure to follow for an emergency descent, but this procedure was not automated by a machine. (It's actually quite complicated because Concorde had no speed brakes. So it ...

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Why are magnetized materials dangerous goods?
17 votes

I use neodymium magnets in my work as a research scientist and I regularly carry them aboard aircraft in packaging. We are not talking fridge magnets here, these are serious high-field permanent ...

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Are there any "alternative" passenger airline business models?
12 votes

Yes. The three categories there are not really reflective of many aviation businesses around the globe. Formerly full service, not yet LCC In many parts of the world (especially Europe) you have ...

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Why couldn't my aircraft depart fully fueled on a 44C day?
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20 votes

There are two problems: First, at higher temperatures, the air is less dense; therefore there is less oxygen (by mass) in every cubic metre of it; therefore more air must be ingested by the engine (...

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Did Concorde really fly above 55k feet as mentioned in this report?
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12 votes

Yes. The extra height was necessary in order to reach lower pressure air, and thereby reduce drag, and heating of the airframe from supersonic compression of the air. Concorde's windows were extra ...

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Why does speed lose out to capacity?
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14 votes

Which means, roughly 5 times more passengers can be accommodated by compromising half of the top speed. So, why does speed loses out so much to capacity that it ultimately becomes unfeasible to ...

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What exactly is a compressor stall?
11 votes

The spinning blades in the compressor stage of a jet engine or turbo fan are themselves airfoils, like the aircraft's wings. The operation of the engine depends on the smooth flow of air over the ...

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Is there any airline company owner who also works as a pilot?
4 votes

Niels Sundberg, the founder, owner and CEO of EZ (Sun Air of Scandinavia, a franchisee for British Airways) was also a captain for his airline with over 13,000 hours. He was forced to retire from ...

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How much radiation is an airline pilot exposed to in a year?
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33 votes

The average additional annual dose for flight crew is 2.19 mSv (milli sieverts). http://www.hps.org/publicinformation/ate/faqs/commercialflights.html The typical annual dose from background sources ...

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