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1answer
43 views

Why is the TPA listed on the Chart Supplement (AF/D) sometimes lower than 1,000 AGL? [duplicate]

I'm looking at B19 in Maine, and it recommends a Traffic Pattern Altitude (TPA) of 995 MSL (800 AGL). Wouldn't 1,000 AGL be safer?
7
votes
2answers
2k views

Could an airliner abort a landing after using the brakes system while landing?

Everyone knows that doing a go-around is a normal procedure, although the go-around happens usually before applying the brakes system (spoilers, ground/air brakes, and/or thrust reversers), but, could ...
0
votes
2answers
85 views

How accurately do I need to maintain my altitude while VFR-on-top?

Is holding altitude as stringent a requirement when flying VFR-on-top? If the deviation exceeds say 200 feet off a given VFR altitude (i.e. 5500’ heading eastbound) is this as big of an issue for ATC?
0
votes
1answer
51 views

Is there a benefit to representing a SID/STAR in 3D?

There are several examples of 2D representations of SIDs and STARs on the web. I have yet to encounter a 3D representation of one. Does one currently exist? Are there any benefits of representing a ...
2
votes
1answer
88 views

Does an airfoil in supersonic flow have zero circulation?

In incompressible flow, the Kutta-Joukowski theorem can be used to relate the lift (per unit span) to the circulation around an airfoil. However, if we look at an airfoil or the flat plate (see below) ...
2
votes
2answers
205 views

Is it true that high-bypass engines are inherently inefficient at higher speeds?

Power consumption=Kinetic energy=$1/2mv^2$. Thrust=momentum change=$mv$. I keep being told that aircraft engines are most efficient when their exhaust velocity closely matches the freestream. The ...
0
votes
1answer
118 views

Is QNE pressure altitude? [closed]

In trying to understand pressure altitude better, am I wrong or right when I say this? I am at an airfield. The pressure altitude at that airfield is 200 ft a.m.s.l. If I set subscale 1013 mb on my ...
1
vote
2answers
133 views

What does “Request Boxing Vectors” means?

I have heard on a request from a pilot: "- Request boxing vectors!" What's the meaning of this non standard phraseology?
1
vote
0answers
78 views

Can you identify these antenna/items on the belly of a Cessna 172? [duplicate]

Not sure what all these antenna are for. I have my checkride soon and want to make sure I can name everything that might be pointed out. Thank you.
12
votes
1answer
212 views

What year did the seat belt sign come in to use?

What year did commercial airlines start using a lighted seat belt sign?
1
vote
1answer
298 views

What is this part on a Cessna 172 engine?

Can any one tell me what this tube with the red is? This is a photo of a 1977 Cessna 172 engine. Looks like the tube is directly connected to the top of the crankshaft.
0
votes
2answers
123 views

Are being +30 and having a Ph.D. considered as barriers to become an air traffic controller in NAV CANADA? [closed]

The requirements to apply to the training phase of NAV CANADA (to become an air traffic controller) are listed here, in which no upper bound corresponding to the age and the education level of a ...
1
vote
0answers
25 views

What is the maximal delay between the publication of an investigation report recomending a study and the beginning of this study?

This question is focused on EASA regulations, mainly because the question arise when reading an investigation report written by the BEA. Investigation reports results in lots of recommendations to ...
-1
votes
2answers
190 views

Why haven't we seen virtual reality jet piloting system yet? [closed]

Swedish technology aims to allow truck drivers to work from home. Why haven't we seen virtual reality jet piloting system yet? What are the barriers to the introduction of such technology?
0
votes
0answers
59 views

Why do planes generally curve north and not south? [duplicate]

I know that the shortest distance on a sphere is a curve and not a straight line, so that's why planes curve when they fly. But why is that planes curve north and not south? For example, when if I hop ...
10
votes
1answer
466 views

What is this airstrip in Mali?

While randomly browsing on Google Earth and Bing Maps I found an airstrip in Mali. Normally you assume a small village/mining site in the vicinity of the airport but other than the ruins of a supposed ...
6
votes
1answer
202 views

These “FICON” NOTAM's contractions aren't in the FAA contraction list. What do they mean?

These NOTAMs for KSGF state "Snow" when the icon on the left is hovered over with a mouse. The contraction "FICON" does not appear in the Notam Contractions list. It is currently the middle of June ...
-2
votes
1answer
96 views

Is flap down the same as flap extended to 25degrees? [closed]

Is Flap down command is same as setting the flap angle to 25degrees. Recently I am reading the information related to Flap and got confused with different terminology. Trying to get relation between ...
23
votes
3answers
4k views

In an engine failure, should I expect less range than with the engine in idle?

I fly a C172 (fix pitch propeller) and when my instructor and I practice a simulated engine failure, we do not turn off the engine, instead we set the engine to idle. In an actual engine failure, ...
2
votes
1answer
46 views

Where is the 36 month ATPL theory exam validity before CPL/IR test listed and described?

The provider of my EASA Integrated Training Course states that my ATPL theory exams are only valid for 36 months before a CPL or IR skills test. Where is this regulation listed and described? ...
0
votes
2answers
201 views

Does the payload of an ICBM or regular airplane bomber explode if the ICBM or bomber is shot down?

As the top says, does the payload of an ICBM or regular airplane bomber (please excuse my ignorance) explode if the ICBM or bomber is shot down? So, say a defense laser in space (yes, I know; this is ...
-1
votes
1answer
297 views

What are the missing elements to mandate airliners to have an AoA indicator? [closed]

ONGOING EDIT NOTE (By OP) This question is right now being comprehensively reworked to make it less broad over the course of the next number of days. (That's being done mainly offline, so as to ...
16
votes
3answers
2k views

Why do aircraft piston engines require priming?

Aircraft piston engines generally require priming, but automobile engines don't seem to need it. Why doesn't cranking the engine with the starter pull in fuel mixture that would ignite without help of ...
0
votes
5answers
211 views

Could a flight ever be considered to be operating under Visual Flight Rules and Instrument Flight Rules at the same time?

In the US, could a flight ever be considered to be operating under Visual Flight Rules and Instrument Flight Rules at the same time? If not, where in the FARs is this spelled out? Consider the ...
1
vote
0answers
69 views

What is the linkage connecting the body landing gear on the C-130?

I can't seem to find a diagram that includes this tube linking the front and rear body gear on each side. Is it structural, or hydraulic, or maybe something else entirely? Image source: https://www....
0
votes
1answer
211 views

Why does the A320 still have this old fashioned nose?

Another answer stated that Airbus was less focused on just brand image, and more on aerodynamics, explaining the more rounded nose of it's 320 vs the 737's. But it still has flat cockpit panes which ...
1
vote
1answer
88 views

Does a glider pilot need to file an IFR flight plan to legally fly in cloud in class E airspace in the US?

Does a glider pilot need to file an IFR flight plan to legally fly in cloud in class E (controlled) airspace in the US? Or could he or she contact ATC and receive a clearance to enter cloud without ...
3
votes
1answer
166 views

How much does each engine on a Boeing 747 weigh? [closed]

The Boeing 747 weighs 404,600 lbs in total, but how much of that does each engine take up?
0
votes
1answer
35 views

How the maximum service interval is related to UAVs?

I´ve been reading about the aircraft´s maximum service interval but this concepts is hardly related to the day to day aircraft (civil and military ones of course). How does this concept is related to ...
15
votes
2answers
2k views

How can I read airport maps when choosing a seat as a passenger?

When I choose seats on an airplane, I usually go for a window seat since I love the view, especially the views of a city on takeoff/landing. Sometimes I get good a view of the city and sometimes I ...
0
votes
0answers
133 views

What does an XXXX ident mean?

A couple of guys who I met online yesterday claim to have been in the military. One of them was tracking flights earlier and saw a plane with a callsign of XXXX. He said that this was very bad and is ...
0
votes
2answers
172 views

Help identifying airfield and aircraft from movie “My Spy”

Here's a couple of stills from the movie "My Spy" - the climactic scene takes place at a single-strip airfield with a paved or tarmac 09 runway. My tentative identification of the (clearly unflyable) ...
0
votes
1answer
72 views

How do the vortex created by wing tips affects the lift? [duplicate]

I’ve been reading about how improve the aircraft performance and I found that for low aspect ratios, the vortex created by the wing tips decrease the lift generated by the wings. Why is this happening?...
20
votes
2answers
3k views

Would deploying the Space Shuttle's landing gear early have improved safety? [duplicate]

Due to the space shuttle orbiter’s high weight (potentially up to 110 tonnes [121 short tons] in certain abort scenarios, although nominally around 85 tonnes [94 short tons]) and abysmal subsonic ...
0
votes
1answer
239 views

What is the function of Boeing C-17 Globemaster III in Indian military?

Why does India need Boeing C-17 Globemaster IIIs? What purpose do they serve in Indian military?
2
votes
2answers
101 views

What can be approach of balancing canard glider model?

There are a lot of instructions out there about balancing classic wing configuration glider models. The center of gravity should be approximately 25% to 30% from the front edge of the wing, which is ...
0
votes
1answer
51 views

Does thin airfoil theory work at very high angles of attack?

Thin airfoil theory says that lift coefficient is directly proportional to the angle of attack in radians. I haven't been able to find any limit, short of stall, for applying this theory. It would ...
0
votes
1answer
45 views

Why does Vmca decrease with increasing altitude?

A question from a mock MEP class rating test: Many thanks for your help.
0
votes
3answers
105 views

What is needed to go from a student pilot license to a private pilot license?

I will be 16 in a few weeks and I really want to get flying so I am currently thinking that I should get a Student Pilots license and then get a Private Pilot License next summer when I am 17 but I ...
-1
votes
1answer
190 views

Why does Pakistan continue to use F-16s?

Why does Pakistan continue to use F-16s even though they have their own JF-17s? What features do Pakistani F-16s have which their JF-17s don't?
3
votes
2answers
110 views

What are the forces acting on an air particle along curved streamline(wing upper surface)? [closed]

What forces act at air particle at curved streamline (at first 1/4 upper wing surface) , looking from inertial and non-inertial frame of reference? (show free body diagram) Pressure gradient normal ...
0
votes
4answers
146 views

Why should I not use a “lifting tail” on my ultralight design?

In my misspent youth I designed and built many rubber, gas, and RC models. When I wanted good climb and glide I used a aft CG [60 to 80%] and a lifting tail. I had no stability or control problems, ...
4
votes
2answers
359 views

How to choose the right ILS when the runway has more than one?

I'm wondering how is the right choose when an runway has ILS x, Y, Z. What should I consider in order to pick one of those for landing?
3
votes
0answers
112 views

why are the Comet's engines pointing outwards?

As it's visible from the images below, when looking at the plane from the top, the engines point outwards and they are banana-shaped, why is that? (unfortunately I couldn't find a real photo ...
3
votes
3answers
161 views

Where does fuel from the boost pumps go before engine start?

For example let’s take the PT6A-27. In every video related to engine start I see, the fuel boost pump is turned on, and then the fuel pressure goes up. Example: My ...
12
votes
2answers
1k views

Why does directional stability decrease at supersonic speeds?

As an aircraft accelerates through the transonic region from full subsonic to to full supersonic flow its directional or yaw stability decreases. What causes this reduction?
1
vote
1answer
81 views

At what point of the design process the manufactures build their first prototype?

I would like to know when the aircraft manufactures decide to put in practice their designs building the first scaled prototype (or maybe the actual size). Does the design have to accomplish a list of ...
2
votes
1answer
61 views

Relationship between wing aspect ratio and speed [duplicate]

For some reason, I cannot find a relatively straightforward source online which discusses the relationship of wing aspect ratio and how it affects speeds of an aircraft. Specifically, is there a ...
1
vote
1answer
100 views

Do pilots eat the same food as passengers? [duplicate]

I imagine it might be hard to find a time when pilots can eat, but when they do, what do they eat?
1
vote
2answers
240 views

What caused the Belgian aircraft mechanic who stole an F-16 to crash? [closed]

This is the story, from the late 80s: https://apnews.com/3b2ba1c5735b3817a3e7ae3562780e9b Why did he crash? Why would anyone crash in this scenario? I'd like to ideally hear from someone who is ...

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