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QBB
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What is the amount, type and height above official aerodrome elevation of the base of the cloud [at ... (place)]?
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The amount, type and height above official aerodrome elevation of the base of the cloud at ... (place) at ... hours is:
... eights (... type) at ... (figures and units) height above official aerodrome elevation.
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Aeronautical Code signals
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QBC
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Report meteorological conditions as observed from your aircraft [at ... (position or zone)] [(at ... hours)].
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The meteorological conditions as observed from my aircraft at ... (position or zone) at ... hours at ... (figures and units) height above ... (datum) are …
Note.-The answer is required in the format of an AIREP message.
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Aeronautical Code signals
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QBD
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How much fuel have you remaining (expressed as hours and/or minutes of consumption)?
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My fuel endurance is ... (hours and/or minutes).
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Aeronautical Code signals
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QBE
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I am about to wind in my aerial.
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Aeronautical Code signals
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QBF
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Are you flying in cloud?
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I am flying in cloud at ... flight level/altitude ... [and I am ascending (descending) to flight level/altitude ...].
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Aeronautical Code signals
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QBG
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Are you flying above cloud?
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I am flying above cloud and at flight level/altitude …
Maintain a vertical distance of ... (figures and units) above clouds, smoke, haze or fog levels.
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Aeronautical Code signals
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QBH
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Are you flying below cloud?
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I am flying below cloud and at flight level/altitude …
Maintain a vertical distance of ... (figures and units) below cloud.
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Aeronautical Code signals
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QBI
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Is flight under IFR compulsory at ... (place) [or from ... to ... (place)]?
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Flight under IFR is compulsory at ... (place) [or from ... to ... (place)].
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Aeronautical Code signals
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QBJ
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What is the amount, type and height above ... (datum) of the top of the cloud [at ... (position or zone)]?
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At ... hours at ... (position or zone) the top of the cloud is:
amount ... eights (... type) at ... (figures and units) height above ... (datum).
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Aeronautical Code signals
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QBK
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Are you flying with no cloud in your vicinity?
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I am flying with no cloud in my vicinity and at flight level/altitude ...
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Aeronautical Code signals
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