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MET Key Facts > Altimetry > Flashcards

Altimetry Flashcards

1
Q

Transition Altitude

A

QNH to SPS - Departure

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2
Q

Transition Layer

A

Layer between transition altitude and transition level

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3
Q

Transition Level

A

SPS to QNH on arrival

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4
Q

Surface Pressure on true + indicated when flying towards high

A

True altitude will increase for same indicated altitude

More distance between pressure lines

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5
Q

Low surface pressure on true and indicated altitude

A

True altitude will be less than what is indicated

Pressure lines are closer together

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6
Q

Temp Error Correction

A

4 x ISA Dev x layer of air/1000

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7
Q

QFE

A

Height - Atmospheric pressure at official aerodrome from elevation

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8
Q

QFF

A

QFE reduced to MSL using actual conditions

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9
Q

QNH

A

MSL Pressure Level

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10
Q

True ALT vs Altimeter

A

TA and altimeter reading Varys greater with altitude

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11
Q

RQNH

A

Regional QNH
Lowest forecast QNH within ASR
Valid for 1 hour

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MET Key Facts (25 decks)

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