Aviation Stack Exchange Community Digest

Top new questions this week:

What's that in front of the overhead panel?

There is that thing I have see a few pilot using it. it can be pulled outside and then inside. what's that and what's the use of it?

airbus-a320 feature-identification airbus  
asked by Mamad 33 votes
answered by J. Hougaard 49 votes

Why is "runway behind you" useless?

I was recently answering this question and for some reason it made me think of this fairly famous aviation saying The three most useless things to a pilot are the altitude above you, runway behind ...

asked by Jamiec 21 votes
answered by bogl 107 votes

Why do some AFBs have planes parked at 45 degrees to others?

I'm assuming this is just a matter of available space but it seems you could get 4 across all aligned but maybe there is another reason. The image is from McGuire AFB but I've seen this on other ...

military airport-design airport-operations  
asked by William Taft 19 votes
answered by ymb1 28 votes

Is it possible to stall a plane so badly that the nose refuses to go down due to lack of airspeed?

So basically, a stall from a high AoA to the point that the entire plane just falls with the rear end pointing straight down? Because if wind is no longer passing over the wings, then this includes ...

aerodynamics aircraft-performance commercial-aviation flight-controls  
asked by Firefighter1 18 votes
answered by John K 39 votes

How do planes maintain constant speeds at cruise altitudes?

I'm a noob so pardon my ignorance. So my understanding is that as the plane gets lighter during the flight, its mass reduces therefore reducing the lift needed to maintain the altitude. At those ...

aerodynamics flight-controls airplane cruise  
asked by Sriram Subramanian 17 votes
answered by John K 27 votes

How can I get a ride in the jump seat as a non-professional pilot?

A couple of years ago, I had a strong fear of flying. Now, I really enjoy it. In fact, it is a dream of mine to sit in the jumpseat of an A320 during takeoff. I've had a handful of flying lessons. ...

commercial-aviation cockpit  
asked by Cloud 11 votes
answered by Jamiec 20 votes

Why do cargo airplanes fly fewer cycles then airliners?

Reading Why do cargo airlines frequently choose passenger aircraft rather than aircraft designed specifically for cargo?, some answers say that cargo aircraft fly less than passengers aircraft. Why? ...

asked by Ian Ringrose 11 votes
answered by John K 13 votes

Greatest hits from previous weeks:

What are the advantages of squawking 7700?

I was reading this question about how do pilots send distress signals in emergency scenarios, and that got me thinking... In voretaq7's answer, he states that there are three ways to send distress ...

emergency radio-communications procedure transponder  
asked by Gabriel Brito 45 votes
answered by Simon 71 votes

What is this white smoke like thing, seen inside the cabin before takeoff?

I saw this quite thick white smoke like thing in the cabin in my last flight, before takeoff that is, while it was taxiing and loading passengers: Video Please watch in HD to best notice the ...

aircraft-design cabin-design cabin  
asked by anshabhi 18 votes
answered by mins 51 votes

What are the advantages of a forward-swept wing over a rearward-swept wing?

What are the advantages of a forward-swept wing vs. a rearward swept one? Image credit: NASA Image credit: Paul Maritz / Wikimedia

aircraft-design wing  
asked by flyingfisch 29 votes
answered by SSumner 24 votes

What are N1 and N2?

When I'm reading something about jet engines, it's common to see references to N1 and N2. I've never fully understood what N1 and N2 are on engine instruments and how they relate to thrust and the ...

jet-engine flight-instruments  
asked by Gabriel Brito 45 votes
answered by Ralph J 35 votes

What is the difference between ICAO, JAA, FAA, EASA, and CAA?

There seems to be many regulation bodies across the globe, how are they different and how are they alike? Specifically, how is ICAO different from the rest?

faa icao easa  
asked by Magnetoz 15 votes
answered by DeltaLima 18 votes

Can someone actually "fly under the radar"?

It is quite a common phrase, usually without having anything to do with radar or aviation. But. Is there such a thing as 'flying under the radar'? If so, why is this (and how low is that)?

asked by Keep these mind 90 votes
answered by Lnafziger 84 votes

How does ILS (Instrument landing system) work?

How does ILS (Instrument landing system) work? I know it provides guidance to the runway by two signals, one modulated at 90 Hz, the other at 150 Hz, but how the airplane lock on those signals? ...

navigation ils navaids  
asked by Gabriel Brito 26 votes
answered by casey 25 votes

Can you answer these questions?

Do check rides completed by part 141 schools with self-examining authority count like normal check rides for CFI renewal and gold seal?

Some schools have self-examining authority issued by the FAA. Do check rides completed in this manner count the same way as a standard check ride for the purpose of CFI renewal and gold seal ...

faa cfi checkride  
asked by Ryan Mortensen 1 vote

Why does the use of reverse thrust on the DC-8 generate a pitch-up moment rather than a pitch-down moment?

Unlike most aircraft, the DC-8 is certified to use reverse thrust in flight (albeit only on its inboard engines). This serves as a very effective airbrake, although it also produces considerable ...

aerodynamics thrust-reverser pitch dc-8  
asked by Sean 1 vote

How does the battery master switch activate the battery contactor in Cessna 152?

I have trouble understanding how the battery master switch activates the battery contactor in this schematic from the Cessna 152 manual. This is the model from 1979 or later with an Alternator Control ...

electrical-system cessna-152  
asked by bogl 1 vote
answered by bogl 0 votes
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