o型rhd阳性是什么意思
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The instrument which indicates the aircraft's altitude, usually based on atmospheric pressure, but sometimes on radar or GPS data instead.
126 questions
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What Aircraft did this Altimeter come from?
I inherited a bunch of vintage aircraft gages. I was wonder if anyone can tell me what aircraft this altimeter came off of.
Aircraft Altimeter Ser # 54735
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1
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What is the resolution and the range of QNH?
Where can I find the resolution and the range of QNH in both inHg and hPa? Are there any regulations specifying this?
9
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Has any TFR been issued due to “abnormally high pressure”?
TFR is supposed to be issued if the barometric pressure is more than 31.00”Hg as it is greater than altimeter adjustment range. Has this type of TFR been issued before within the U.S.?
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Why does the Pilatus PC 7 Mk II Altimeter show a decrease in altitude (~around 20-40ft) during takeoff roll, but recovers to original before unstick?
PC7 Mk II is equipped with digital ADC, how come this anomaly in altimeter readings during takeoff roll? Also, the pitot tube is situated well away from the prop wash and it has two static ports on ...
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0
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1
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Relationship between Altimeter and Transponder [duplicate]
I'm wondering if there's a relationship between Altimeter, Mode C and Transponder. I'm asking because I understand that the Mode C transmits pressure altitude and aircrafts identification code to ATC ...
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1
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1
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What is the formula to calculate crossover altitude and speeds?
Indicated airspeed, (IAS) will always correspond to a certain Mach number at any altitude. If a targeted IAS or Mach number is desired for a climb or descent, at some altitude the pilot will ...
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3
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3
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Do ATC say "Climb to XXXX on standard" or "Climb to standard XXXX" or something else?
Do ATC say "Climb to XXXX on standard" or "Climb to standard XXXX" or something else?
By "standard" I'm referring to altimeter pressure settings (set to standard pressure)...
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3
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1
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Why does aircraft weight influence position (installation) error in pitot-static systems?
I am a private pilot from Argentina studying to become a commercial pilot. In one of the books I was given to study, published by the Chilean air force, the there's a claim (in Spanish, page 36) that ...
4
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3
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What is the effect of wind on altimeter reading?
I am wondering is there any effect from wind on the altimeter reading?
I think when the wind is blowing, the static pressure around the aircraft in flight will somehow change and this can impact the ...
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5
votes
1
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Why are flights not also restricted during abnormally low barometric pressure conditions
FAR 91.144 talks about restricting flight operations during abnormally high barometric pressure conditions. Why would there not be an identical restriction during abnormally low barometric pressure ...
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0
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1
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Should I add or subtract PA when calculating performance
I am planning a cross country and I wanted to know how would I calculate my PA for performance.
If the elevation of my airport is 16ft
and the altimeter setting for the day is 30.03
I subtract
30.03
-...
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2
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2
answers
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How precisely are pilots expected to be able to read altimeters?
I'm writing a program to practice reading three-hand analog altimeters. How precisely should a pilot be able to read one?
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1
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Manual or other information regarding Kollsman Instruments B42025-08-066 altimeter
I just purchased a used altimeter from eBay because it'll look pretty on a shelf, and I may add a computer interface to it. However, I need help finding information on it.
This (from what I've been ...
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6
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3
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is pressure altitude at different temperatures (different days) on the ground at the same airfield the same?
let's say we are at x-airfield which is at 0 MSL on the ground. We set the Kollsman window to 29.92 on a standard day, whatever the read is that would be the Pressure altitude, correct? (ideally zero ...
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