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The QNH at an airfield located 200 metres above sea level is 1022 hPa The air temperature is not available What is the QFF ?

Preparation > civilian

exemple reponse 233
It not possible to give a definitive answer. qff atmospheric pressure at sea level qnh the setting which will give airfield elevation when parked on airfield in cold conditions a column of air will shrink so 'col qnh will be less than qff the 'warm' qnh will be more than qff this table will help the exam we need to know temperature !.



The QNH at an airfield located 0 metres above sea level is 1022 hPa The air temperature is not available What is the QFF ?

exemple reponse 234
The qnh at an airfield located 0 metres above sea level 1022 hpa the air temperature not available what the qff It not possible to give a definitive answer. qff atmospheric pressure at sea level qnh the setting which will give airfield elevation when parked on airfield in cold conditions a column of air will shrink so 'col qnh will be less than qff the 'warm' qnh will be more than qff this table will help the exam when temperature unknown you are unable to calculate qff expect at mean sea level at sea level qfe = qnh = qff regardless of temperature because you are not correcting up or down to find msl pantalejandro fast furious analogy qff = fast furious from starting point all 3 race cars 'qfe qnh qff' are at same position (m s l same pressure value) as race goes on qff =>fast furiou  will lead if it cold (colder than isa= more thrust) => 'qnh les or will lag behind if it warm (warmer than isa = less thrust) => 'qnh more' while other two cars will go hand hand note below m s l story reverted > qff less if colder i made this out hope it works you guys!.

The QNH at an airfield in California located 69 metres below sea level is 1018 hPa The air temperature is 10°C higher than a standard atmosphere What is the QFF ?

exemple reponse 235
The qnh at an airfield in california located 69 metres below sea level 1018 hpa the air temperature 10°c higher than a standard atmosphere what the qff It not possible to give a definitive answer. Qff atmospheric pressure at sea level qnh the setting which will give airfield elevation when parked on airfield in cold conditions a column of air will shrink so 'col qnh will be less than qff the 'warm' qnh will be more than qff this table will help the exam .

  • exemple reponse 236
    The qff at an airfield in california located 69 metres below sea level 1030 hpa the air temperature 10°c lower than a standard atmosphere what the qnh It not possible to give a definitive answer. qff atmospheric pressure at sea level qnh the setting which will give airfield elevation when parked on airfield in cold conditions a column of air will shrink so 'col qnh will be less than qff the 'warm' qnh will be more than qff this table will help the exam .

  • exemple reponse 237
    If qfe at locarno 200 metres above sea level 980 hpa what the approximate qnh It not possible to give a definitive answer. the qfe indicates in standard atmosphere height of aircraft above official airport elevation (an altimeter set to qfe will therefore read zero when on ground) and you want qnh to read an altitude ___________ qfe 980 hpa | | 200m / 8m per hpa = 25 hpa | |_____________ qnh 1005 hpa.

  • exemple reponse 238
    If qfe at locarno 200 metres above sea level 1000 hpa what the approximate qnh It not possible to give a definitive answer. the qfe indicates in standard atmosphere height of aircraft above official airport elevation (an altimeter set to qfe will therefore read zero when on ground) and you want qnh to read an altitude ___________ qfe 1000 hpa | | 200m / 8m per hpa = 25 hpa | |_____________ qnh 1025 hpa.

  • exemple reponse 239
    If qnh at locarno 200 metres above sea level 1015 hpa what the approximate qfe It not possible to give a definitive answer. the qfe indicates in standard atmosphere height of aircraft above official airport elevation (an altimeter set to qfe will therefore read zero when on ground) qnh the setting which will give airfield elevation when parked on airfield ___________ qfe 990hpa | | 200m / 8m per hpa = 25hpa | |_____________ qnh 1015hpa use this craftiness your altimeter reading 675 ft (200 m) when parked on airfield with a subscale setting of 1015 hpa you want to read 0 ft (the qfe) you must decrease subscale setting until needle shows 0 ft the adjustment knob turns counter clockwise as needle ! .

  • Question 122-8

    If qnh at locarno 200 metres above sea level 1025 hpa what the approximate qfe It not possible to give a definitive answer. the qfe indicates in standard atmosphere height of aircraft above official airport elevation (an altimeter set to qfe will therefore read zero when on ground) qnh the setting which will give airfield elevation when parked on airfield ___________ qfe 1000hpa | | 200m / 8m per hpa = 25hpa | |_____________ qnh 1025hpa use this craftiness your altimeter reading 675 ft (200 m) when parked on airfield with a subscale setting of 1025 hpa you want to read 0 ft (the qfe) you must decrease subscale setting until needle shows 0 ft the adjustment knob turns counter clockwise as needle ! .

  • Question 122-9

    If you are flying at fl 300 in an air mass that 15°c warmer than a standard atmosphere what the outside temperature likely to be It not possible to give a definitive answer. in standard atmosphere decrease in temperature per 1000 feet 2°c in standard atmosphere temperature 15°c at 0 ft at fl300 temperature is 15°c (30 x 2°c) = 45°c air mass 15°c warmer than standard 45°c + 15°c = 30°c.

  • Question 122-10

    If you are flying at fl 100 in an air mass that 10°c warmer than a standard atmosphere what the outside temperature likely to be It not possible to give a definitive answer. in standard atmosphere decrease in temperature per 1000 feet 2°c in standard atmosphere temperature 15°c at 0 ft at fl100 temperature is 15°c (10 x 2°c) = 5°c air mass 10°c warmer than standard 5°c + 10°c = +5°c.

  • Question 122-11

    If you are flying at fl 120 and outside temperature 2°c at what altitude will 'freezing leve be It not possible to give a definitive answer. in standard atmosphere decrease in temperature per 1000 feet 2°c at fl120 temperature 2°c 1000 ft below temperature will be 2° warmer 1000 ft above temperature will be 2° colder the 'freezing leve (0°c) will be at fl 110.

  • Question 122-12

    An aircraft flying at fl 100 from marseille qnh 1012 hpa to palma mallorca qnh 1006 hpa experiences no change to true altitude the reason this that The air at palma mallorca warmer than that at marseille. case n°1 if temperature the same between both locations true altitude will be reduced over palma 6 hpa (around 162 ft) case n°2
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