Decompression

  • Created by: Kate Fish
  • Created on: 04-06-18 18:38
Oxygen
Obtaining oxygen usually okay at altitudes below 10,000ft.
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Cabin pressurisation
Cabin is pressurised at altitudes above 10,000 ft to stimulate height of between 5,000-7,000ft. Takes place immediately after take-off and depressurised just prior to touch down.
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Airbus and 747
Air drawn through engines, cooled, cleaned then pumped into the cabin
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787
Takes air directly from the atmosphere through inlets on the fuselage.
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Non-pressurisation
If cabin altitude exceeds 15,000ft they would begin to suffer hypoxia. Oxygen deploys automatically.
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Slow decompression
Gradual loss of cabin pressure. Small cracks, The appearance of oxygen masks.
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Rapid decompression
takes place between 1 and 10 seconds for pressure to equalise. occur at high altitudes or part of fuselage is destroyed, loud noise, mist. Airbus (chemical oxygen)
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Times of useful conciousness
40,000ft - 18 seconds, 35,000 - 30-50secs, 30,000ft - 1-2 mins, 28,000ft - 2-3 mins, 25,000ft 3-5mins, 15,000-18,000-30+mins
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Other cards in this set

Card 2

Front

Cabin pressurisation

Back

Cabin is pressurised at altitudes above 10,000 ft to stimulate height of between 5,000-7,000ft. Takes place immediately after take-off and depressurised just prior to touch down.

Card 3

Front

Airbus and 747

Back

Preview of the front of card 3

Card 4

Front

787

Back

Preview of the front of card 4

Card 5

Front

Non-pressurisation

Back

Preview of the front of card 5
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