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41 views

Overheating (fire thrown out of the nozzle)

At first I copied https://www.jetcat.de/en/productdetails/produkte/jetcat/produkte/hobby/Engines/P160_rxi_b Where I manufactured and installed all the parts and they are very similar to the original ...
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0answers
8 views

How are Fan pressure of and Static pressure in the turbofan engine related?

If the fan air is ducted to the rear, the total fan pressure must be higher than the static gas pressure in the primary engine's exhaust, or air will not flow. By the same token, the static fan ...
1
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1answer
74 views

Does the angled parking scheme of London City (LCY) increase the number of aircraft that can be parked in the small apron?

I was just going through some articles and videos where I chanced upon an LCY video... I was surprised to see that, unlike Dortmund, LCY has aircraft parked diagonally... Does it increase the number ...
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0answers
27 views

What kind of weather conditions would produce turbulence with an intensity of 90 feet per second?

This is the official documentation that we found regarding current commercial airplane design criteria; https://www.law.cornell.edu/cfr/text/14/25.341 It says the criteria for continuous turbulence is ...
2
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2answers
49 views

Are there more refined rules-of-thumb for T/D calculation, than the simple FL x 3?

Forgetting the excellent capabilities of VNAV for a moment and reverting to simpler days, is there a rule of thumb to further refine the FL x 3 rule for T/D calculation, when there are excessive head ...
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0answers
23 views

Matching the Drag Equation to Real Airplane Data

I am trying to compute airplane performance for a piston-driven airplane with constant speed prop using the standard equations for Lift, Thrust and Drag. I have found that there are a couple of useful ...
-3
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0answers
67 views

How are additional fuel tanks installed on the A321LR?

Can anyone share images of the Additional Centre Tanks (ACTs) installed on the Airbus A321LR (long range)?
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2answers
103 views

What does setting an altimeter actually do to the altitude?

I have looked at probably 10 different webpages and re watched the Sportys video on altitudes, multiple times, but I have a very fundamental question, which I am unable to wrap my head around. Is my ...
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0answers
29 views

Under what engine conditions is glide performance typically determined in performance charts?

The performance section of an information manual I am using states that the glide range indicated is "power off". Does this terminology definitely imply that the engine is not firing? or ...
4
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2answers
88 views

What is the purpose of rudder trailing edge flat plate?

These are photos of Tecnam P2006T rudder trailing edge. Why it has such flat plate mounted at the trailing edge?
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3answers
3k views

Why are the aircraft in this image parked this way?

Why are these parked asymmetrically? And how can a plane owner get to their plane if it's on the farthest end? Image Source: Wikimedia Commons
5
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1answer
966 views
2
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1answer
100 views

How does an airline respond to the loss of one of its aircraft in a hostile country?

I was wondering if the steps are the same as an accident on home ground where there is a go team and how they set up the area around the crash site, with a team contacting passegner relatives.
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0answers
29 views

Why does the Winds Aloft ‘For Use Time’ start before the ‘Valid Time’?

Why is it that a winds aloft forecast normally has a "valid time" that comes in the middle of the "for use" time range? Why don't they just state the valid time as the beginning of ...
0
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1answer
41 views

Oil Cooler Bypass

I am wondering here, in relation to a oil cooler bypass. I know that we have a gauge to detect the oil temperature and make the oil bypass the cooler completely if it gets too cold. My question is, if ...
1
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1answer
50 views

What does Region @TOP mean on the aviationweather.gov website?

When looking at raw METAR data on the aviation weather center, "@TOP" appears in the text box where you can type identifiers. What does TOP mean?
0
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1answer
46 views

How does an airline develop a Safety Management System (SMS) program?

How does an airline develop an SMS program? Like from the ground up. And who does it involve? Does it involve regulators? I know the 4 pillars but who does it involve?
2
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2answers
94 views

What are the approach speeds for each flap setting in a Cessna 152?

I am still trying to understand how the approach speeds for different flap speeds work. I cant find it in the handbook but I want to know the different approach speeds for the following flap settings: ...
1
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0answers
50 views

When should the fuel pump be on in a Cessna 152? [duplicate]

I am a new student and just need help understanding the fuel pump system. For a Cessna 152, in which scenario would I have the fuel pump on ? Start ? After Start ? Before Take-Off ? After Take-Off ? ...
1
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1answer
65 views

What does “when used as an alternate” mean in the context of 135.225(e)?

Here's the text of 135.225(e) [No pilot may begin an instrument approach procedure to an airport unless] The MDA or DA/DH and visibility landing minimums prescribed in part 97 of this chapter or in ...
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0answers
26 views

why are modern rotor airfoils placed and set up in a compressor at a higher angle of incidence?

why is it that in modern compressors in gas turbine engines like the J79 the rotor blades are set up at a higher angle of incidence (more aligned to the axial axis) compared to older engines. I also ...
0
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1answer
85 views

Why is it that low fuel gauge is one indication of a compressor stall?

I am reading from my gas turbine engine class notes that apparently, one indication of compressor stall (besides the banging sounds, torque gauge low, N1 low, ITT gauge up, etc) is the fuel levels ...
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1answer
48 views

Is it correct to say that inertia is the centrifugal force in a turn? [closed]

I came to this thinking using the law of inertia. If the centripetal force (aka. horizontal component of lift) is suddenly removed, the airplane will continue on its straight-line path. My additional ...
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0answers
34 views

Pilots with one eye (monocular vision), versus monovision contact lenses

If it is allowed for a pilot to have one eye (monocular vision), why shouldn't it be allowed for a pilot to have monovision contact lenses? With monovision contacts one has more peripheral vision than ...
2
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1answer
81 views

If I'm cleared for the approach while established in a hold, can I turn inbound immediately?

If you are established in holding and on an outbound leg (say you are 30 sec outbound on a 1 min or 3.5nm on a 7nm leg) and you are subsequently “cleared approach,” are you allowed to immediately turn ...
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0answers
82 views

If a superjumbo were designed today, would it more closely resemble the 777X? [closed]

Over the past few decades, twinjets have grown larger (eg:777X=747-100) while quads have begun to disappear. So, is it reasonable to say that if a new superjumbo were designed, it would be a single-...
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2answers
47 views

Cessna 140 1946 TT [closed]

Hello I’m first time buyer airplane, I’m buying Cessna 140 1946 and it has TT 12.400 TSMOH 400 , needs anual and ADSB I’m I getting in trouble here ? Is too many hrs ? $17,000
12
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1answer
2k views

What are those ball-shaped things on some helicopter blades?

I saw these things swinging in a video of a rotor from the blade point of view. I don't know what are they for but I am quite curious. And why some helicopters have it and some don't? Source: alamy ...
0
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1answer
120 views

What proportion of a flight do planes spend in the upper atmosphere?

While creating a methodology for the carbon footprint of flights, I came across some information which required the calculation of the distance travelled by a flight in the upper atmosphere. ...
5
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1answer
100 views
+100

How do engineers estimate the aerodynamic effects caused by jet engines or propellers in wind tunnels?

When aircraft models are tested in wind tunnels they don't seem to have engines or propellors on them. So how do engineers get correct parameters from the experiments? Do they just seal the air inlets ...
6
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2answers
258 views

What causes the radar phenomenon of ‘far-shore brightening’?

In Larry Milberry’s text on CAE (Canadian Aviation Electronics), in a discussion of the development of digital radar land mass simulation (DRLMS) for the Dutch Lynx mission simulator, far-shore ...
12
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9answers
4k views

What kind of injury would force a Navy EA-6B pilot to stop flying and take a desk job?

Currently, I'm writing up a character bio for a game, where the character is a former naval aviator who becomes a JAG Corps lawyer who can be quite active during investigations and combat. I've been ...
0
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1answer
76 views

Feasibility and process for the approval of a modified glider [closed]

I am looking into a business idea that requires glider sized semi-automatic drones but I am very naive when it comes to the regulations and rigour of the aviation and airline industry, so I am hoping ...
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0answers
42 views

Boundary Layer Ingestion - Would it also work at supersonic speeds?

I have searched the forum and the internet but can't find the answer to my question. Would the 10% increase in fuel efficiency from BLI function at supersonic speeds? The 10% increase is the number I ...
6
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2answers
1k views

What’s the difference between an AIRSPEED LOW warning and a STALL warning?

Just an enthusiast here; pardon the dumb question. Im a little confused between the difference of a stall and airspeed low. “An aircraft Stall Warning System is that system which provides the pilot ...
4
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1answer
148 views

Do airliners get substantially different weather briefings from the rest of us?

Southwest Airlines flights were delayed and cancelled this week due to an outage in their third-party weather provider. I understand if they have a streamlined business process for getting weather ...
-1
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0answers
39 views

How create our own costume airfoil [duplicate]

I need creat airfoil which canIf the airplane is designed for low-speed flight, a thick airfoil is most efficient, whereas a thin airfoil is more efficient for high-speed flight. There are generally ...
1
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1answer
101 views

How are compressor disks connected to the shaft?

I am trying to learn how compressor disks and shaft are connected each other. I don't have any idea about the terminology so I couldn't find anything useful. Here is a section view of a sample and I ...
4
votes
1answer
500 views

Are there any ICAO restrictions on naming a taxiway?

According to ICAO are there any certain restrictions to naming a taxiway? For example: a certain letter cannot be used it cannot have letters that match a parking stand etc.
2
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0answers
140 views

What are those green LED arrays on top of the instrument panel called?

Below is the link showing a fire fighting aircraft From 0:23 to 0:45 an LED array can be seen. The peculiar thing about that is as aircraft approaches the site, all ...
0
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1answer
158 views

Can anyone tell me more info about this radial engine?

non-aviation expert here doing a project for a friend. I am trying to learn a little more info about this 3D model radial engine. I downloaded it off a stock 3D model website, that offered almost no ...
3
votes
1answer
87 views

Which types of aircraft need a gust lock? Is there a size / performance influence?

Which aircraft require gust locks on control surfaces? Is there a certain range in the middle in terms of size / performance where gust locks (external / internal) are required? From a cursory ...
2
votes
1answer
120 views

On a Gulfstream jet checklist, do you do the walkaround before or after disengaging the gust locks?

On a Gulfstream jet checklist, do you do the walkaround before or after disengaging the gust locks? With small planes we generally remove the gust locks as we do the walk around, but with a larger jet ...
12
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9answers
7k views

Were propeller airplanes significantly more “scary” to fly in compared to modern jet ones?

I've flown exactly once in my life. It was in 2004, with a commercial jet. Not a "jumbo", but a normal-sized jet plane in common use for cheap flights in that year. (Well, twice if you ...
2
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1answer
210 views

Is it feasible to repair a C152 that flipped onto its back?

So there's a C152 that was tied down and blew over onto its back, suffered some damage to its wings (but electric flaps still work) and significant damage to its stabilizers. Can it be fixed by ...
3
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0answers
123 views

When did FedEx acquire it's current callsign and airline ID's?

FedEx currently uses the callsign "FedEx" and has the IATA and ICAO ID's of FX and FDX respectively. Back in the 1990's they used the callsign "Express" and the IATA code was FM. (...
2
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1answer
79 views

How critical is trailing edge geometry/sharpness on wing performance?

This question occurred to me when I was meshing an airfoil for CFD analysis having a sharp trailing edge. The upper and lower side smoothly converge having tangency at the end. After hours of ...
8
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1answer
549 views

Why would holding instructions be sent as an ACARS message?

I was browsing ACARS messages listed on an aviation enthusiast website in Greece (similar to FR24 and others), and noticed a message sent to UA124, a 767 from KEWR to LGAV: The SAT VOR is located at (...
0
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3answers
180 views

Can a commercial pilot fly under this situation? about private carriage [closed]

scenario 1. I'm a commercial pilot/flight instructor and employee of the flight school, who carries the flight school’s CEO and other staff on business trips, do you know what part of the regulations ...
0
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0answers
70 views

What's the simplest plane ever built? [closed]

what is the simplest plane ever built? By that I mean simplicity of construction, a plane that was built by someone in their backyard without specialized equipment

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