Philippe Leybaert
  • Member for 8 years, 1 month
  • Last seen more than a week ago
How do I explain what makes an airplane fly to a non-technical person?
49 votes

The simplest explanation is the "hand out of the window" one: Hold your hand out of the window while in a moving car and hold your hand at an angle. It gets pushed upwards. Your hand represents the ...

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Why are dirt and bugs on an aircraft so bad?
29 votes

One of the main reasons why it's not a good thing to have dead bugs on the windshield is that it becomes very difficult to spot other traffic. Other planes are just little specks at a distance and ...

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How can I politely remind ATC that I'm waiting for instructions or clearance?
27 votes

What I usually do is repeat the last clearance or instruction. That way you give ATC the impression that you're not impatient but just reporting your progress. If they really forgot you they will ...

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What is ground effect?
25 votes

It's impossible to give a correct AND simple explanation I think. I would explain it like this if I was asked: The downwash from the wings and the downward component of the wingtip vortices create a ...

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What does "OBJECTIONABLE" indicate on a VFR chart?
Accepted answer
20 votes

It means that the airspace around the airport is still under review after a proposed change. This article explains it in more detail: http://expertaviator.com/2012/07/31/what-is-an-objectionable-...

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What does the term "trimming" most commonly mean in aviation?
17 votes

In short: trimming neutralizes the force required to keep control surfaces in a specific position. Most (if not all) aircraft have some sort of elevator trim control. For example, when the pilot has ...

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What does it mean when the controller uses the word "request"?
16 votes

"Request " is very common in Europe but it's usually the pilot who will use it to talk to ATC, as in "Request taxi" or "Request to enter your airspace". I've never heard this phrase being used by a ...

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Is it legal to takeoff in a crosswind that exceeds the design limit of my aircraft?
15 votes

The 15kt crosswind for the 182 is not a design limit at all. If it were a design limit, it would be specifically stated in the POH. To be honest, I think there's no such thing as a design limit for ...

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How are VORs oriented near the magnetic poles?
14 votes

VOR stations in areas of magnetic compass unreliability are oriented with respect to True North. I don't think you can tell if it's pointing true north by looking at the charts. However, it doesn't ...

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What security clearances does a foreign citizen doing a flying course in the United States have to pass?
Accepted answer
14 votes

You need 2 things before you can start flight training in the U.S.: An appropriate visa. A tourist visa (B2), business visa (B1) or VWP (Visa Waiver Program) is not accepted TSA clearance through the ...

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Are the airport "taxi" plans available online?
Accepted answer
12 votes

A great site to download airport diagrams and other charts is charts.aero. As of April 2015, however, the site seems gone. Airport diagrams show all the taxiways and ramps, which is what you are ...

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Would connecting propeller blades with a continuous ring reduce induced drag?
11 votes

A ducted fan comes close to what you're describing, although the ring around the propeller is stationary instead of attached to and spinning with the propeller. The main advantage of a ducted fan is ...

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Flight Level Change or Vertical Speed - When to use it?
10 votes

Just MHO: Vertical speed should never be used when climbing because you could stall if insufficient power is added for the requested climb rate. Using FLC when climbing guarantees you maintain the ...

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Is someone holding an EASA PPL (A) allowed to operate a "November" registered aircraft in Europe?
9 votes

This is regulated by the FAA in FAR 61.3 and local regulations specific to each country (a) Required pilot certificate for operating a civil aircraft of the United States. No person may serve as ...

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G1000: Is it possible to balance the radio volume for pilots and passengers?
Accepted answer
6 votes

You can't control the radio volume separately for the passengers but you can control the intercom volume separately. If the passengers' headsets have individual volume controls you can ask them to ...

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Is there a dedicated emergency frequency?
6 votes

As a general rule, declaring an emergency should be done on the frequency you are currently communicating on. However, there is a dedicated emergency frequency as Bret said (121.5 MHz), which is the ...

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Is English sufficient for international aviation?
6 votes

I can only speak for Europe and the U.S. but be prepared to encounter controllers who only speak French when flying in France. As far as I know, France is the only country in Europe where English is ...

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Where does the Oxygen for the emergency gas masks come from?
5 votes

Wikipedia has an excellent article on the subject: http://en.wikipedia.org/wiki/Emergency_oxygen_system In some cases the oxygen masks are connected to a central oxygen supply (or more accurately, a ...

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Is there anywhere I can pick up raw flight data recorder information?
4 votes

If you want data from small aircraft, cirrusreports.com has data recorder information for thousands of flights. I don't believe you can actually download the raw data, but you can interactively plot ...

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To receive an SVFR clearance, does the airport need to be reporting IFR conditions?
4 votes

In Europe, a SVFR clearance may be given when meteorological conditions are below VFR within the control zone of the airport (ceiling below 1,500ft AGL and visibility less than 5km). The clearance can ...

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What is the procedure to climb and level off using a Bendix/King KAP140 autopilot?
Accepted answer
3 votes

Only the KAP140 two-axis autopilot with altitude preselect supports capturing a preselected altitude (which is the one installed in the Cessna 172 before the introduction of the Garmin GFC700) ...

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Should you wait to switch to the ground frequency until after crossing a runway?
1 votes

You have been cleared by the tower to cross a runway so you should stay with the tower frequency until you've crossed it. The reason being that ground control is not authorized to issue clearances for ...

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