All Questions

1
vote
1answer
78 views

Using aluminium busbar/cables in an aircraft instead of copper

I have just found out Airbus uses aluminium wiring in the A380 to save weight. However, I didn't see anything about whether all the wiring is aluminium, or if copper wiring is also used. What is the ...
0
votes
0answers
16 views

Shock wave on airfoil [on hold]

I was wondering the other day, why does the shock wave standing on the airfoil moves downstream when the free
1
vote
0answers
41 views

Definition of Critical Part in type certification process

first time here :) I'm part of the team at Flytrex (flytrex.com) and we're working with the Aircraft Certification Office to certify one of the first UAS systems (drones) under new initiative to ...
1
vote
0answers
68 views

Is it possible for a Commercial Pilot to fly for hire with THEIR own aircraft and it still be private carriage?

Is it possible for a Commercial Pilot to fly for hire with THEIR own aircraft and it still be private carriage? I am looking for a rule or set of rules to get to this conclusion. Part 61 allows ...
1
vote
1answer
27 views

Why is the alternate static pressure lower than the standard static vent pressure regardless of the venturi effect on both?

I understand that the higher relative airspeed around the body of an aircraft in comparison to the air within the cabin causes the cabin to experience a lower pressure. However, I was just thinking ...
1
vote
2answers
112 views

What needs to be considered when changing a tire during boarding/deboarding?

Passenger aircraft tires are physically inspected by the cockpit crew member or technician after each landing or before take-off, that the tire may have been cut or punctured as it may have hit ...
0
votes
1answer
81 views

One man push-back

Towberless pushback operation of a passenger aircraft is generally done with at least 2 people. The first person (walk-out assistant) communicates with the cockpit crew members and observes the ...
0
votes
1answer
73 views

What is the average time and distance needed to reach cruising height?

I am trying to compare trains with airplanes and the distances where taking a train is more viable than an airplane. I guess this would depend on the type of plane, but the Airbus 320 seems like a ...
1
vote
0answers
24 views

What is the difference in purpose of the 1:40 Obstacle Identification Surface and the 1:50 clearance plane for an ILS glideslope?

I have found references to the Obstacle Identification Surface (OIS), which is approximately a 152ft/NM slope from the end of the runway (1.43 degrees, 1:40 rise/run) and a 1:50 clearance plane noted ...
0
votes
0answers
37 views

Does anyone know where I can find more information on an altimeter [on hold]

I recently acquired a B-17 altimeter I was wondering if anyone knew any sites that would help me find out where it was from or what registration for the plane or any other history with it. Here is the ...
1
vote
1answer
156 views

Why does the F-4's rear seat have a weather scope eyepiece?

In the front seat. The pilot has a flat screen radar scope that shows both the planes and the weather. But on the rear seat. The weather scope has an giant eyepiece. Perhaps glare protection? (...
0
votes
0answers
13 views

How to calculate variation of Z force with elevator deflection (Zδe) in Nelson for pitching dynamics?

I have been trying to model the pitching dynamics of a General Aircraft (Nelson : Flight Stability and Control) but during the modelling, I find that I need to use the ...
1
vote
3answers
74 views

Why/how is a downplane parachute configuration aerodynamically stable?

One of the most dangerous situations possible in skydiving is a so-called downplane, where both the main and reserve chutes deploy, and they shift outwards to the sides of the parachutist until ...
9
votes
1answer
1k views

Why does the A-4 Skyhawk sit nose-up when on ground?

The rear of the plane is nearer to the ground, while the front part of the plane is away from the ground (see image below). Other planes are more flat. I think it was for high AoA but these planes ...
2
votes
1answer
66 views

How does ADS-C and FMS relate to FANS?

So - I'm totally confused about FANS and its systems. From what I understand: FANS 1/A (started in 90s) has some early CPDLC for USA routes (this topic) but what about position reporting? Does it ...
1
vote
0answers
55 views

Are tiltrotor planes less safe than conventional propellor planes?

I got interested in Tiltrotor type of airplanes and was reading up about some specific models, the AgustaWestland AW609 and the Bell Boeing V-22 Osprey. Both planes have a history of quite a few ...
6
votes
2answers
236 views

What are the two blisters on F-35 upper wing surface?

For all of the F-35 models you can find pictures with and without a blister on the upper wing surface. I'm guessing that it is sensors for the missile warning system that were retrofitted later on, ...
1
vote
1answer
80 views

Virtual Winglets?

Just read this abstract by a Regeneron STS finalist. Is the idea of a virtual winglet a viable concept? Seems interesting. Link: https://abstracts.societyforscience.org/Home/PrintPdf/15282
2
votes
1answer
109 views

How many crew does a P-8 operate with?

According to Reuters, Iran says it refrained from shooting down U.S. plane with 35 on board. The article goes onto say the aircraft was a P-8 Poseidon with 35 on board: Iran refrained from shooting ...
3
votes
3answers
225 views

Having declared a mental health condition in the past, how will this affect my plans to work as a pilot, and what should I do about it now? [on hold]

About a year and a half ago I moved into an apartment, where pets are not permitted. In order to be able to bring my pet with me, I applied online and obtained an "Emotional Support Animal" letter ...
0
votes
1answer
50 views

Air density, temperature, pressure relation [on hold]

If the pressure increases the density increases If the temperature increases the density decreases If the temperature increases the pressure increases Then when the air is heated the pressure should ...
3
votes
2answers
91 views

Can an S-duct fit a turbofan exhaust instead of the intake?

Can an S-duct fit a turbofan exhaust instead of the intake? The idea here is to merge 2 exhausts into one at the exact center of the tail. This would be for twin-engine aircraft that have both engines ...
0
votes
0answers
21 views

Aircraft Registration for 2015 Flight? [duplicate]

Back in 2015, I flew on 4 flights with Delta Airlines. I was too young to remember the registrations of each aircraft. Is it possible to look up the tail numbers if I have the date of the flights, ...
3
votes
1answer
94 views

What is the cabin noise hertz in typical commercial aircrafts?

In cabin, we hear noises in commercial aircrafts. Wondering if it is in general over or under 100 hz. There should be a band width. Thanks!
0
votes
1answer
41 views

What additional airspace will be off-limits to an a/c w/ no elect. system or xponder under 91.225 (ADS-B) compared to under 91.215?

Under FAR 91.225 (requirement for ADS-B-out), what additional airspace over the 48 contiguous states in the U.S. will be off-limits to an aircraft w/ no electrical system or transponder, compared to ...
-5
votes
0answers
52 views

what shall the ATC do? [on hold]

what shall the air traffic controller do to Manage traffic in case of change in the operational status of navigational systems??? ( mention the related Document ) please
3
votes
2answers
107 views

Eviation Alice Powerplant Placement

I saw an article from the BBC about the Eviation Alice this morning that left me puzzled. The design is a tail wheel tri-motor with the power plants located in a pusher configuration at the wing tips ...
10
votes
4answers
1k views

Do flight schools typically have dress codes or expectations?

I attend a local flight school for lessons once or twice a month. I normally wear a hoody and some tracksuit bottoms as they are comfortable for me and I like to be comfortable whilst doing something ...
0
votes
0answers
48 views

How to become a Private Jet Pilot as a Rotary Pilot? [on hold]

Currently I am flying Helicopter with ATPL (Malaysia) licence clocking about 5000 hours. If I want to fly a private jet under FAA air plane licence as SIC, what are the minimum requirements? What is ...
6
votes
1answer
321 views

Did the Douglas SBD Dauntless have a second set of controls?

In the book Never Call me a Hero, the author mentions that there were controls in the rear seat of the Douglas SBD Dauntless. However, I don't recall ever hearing this before, though I know the TBD ...
10
votes
9answers
2k views

Would a two-seat light aircaft with a landing speed of 20 knots and a top speed of 180 knots be technically possible?

Watching helicopters come in to land, on occasion, I have noticed that they approach with a forward speed of a few knots, never land straight down. If there is sufficient landing space, would it be ...
1
vote
1answer
73 views

Logging time towards commercial pilots license

I am in a part 141 program trying to finish up my commercial pilots license. The airport we operate out of will be closed for a few weeks so I was wondering if I'd be able to rent a plane close to ...
29
votes
2answers
5k views

MH370 blackbox - is it still possible to retrieve data from it?

If the blackbox of MH370 were to be found today, would it actually still provide any information, assuming that it was in 5km deep water or so for some 5 years now? If not, why would you still be ...
0
votes
1answer
34 views

Changing the interception angle in autopilot for OBS or VOR in the G1000 from 30 to something more aggressive

I am flying the G1000 and have noticed that if I program in an OBS TO or a VOR TO (this might apply to FROM as well), the angle at which I fly relative to my programmed in bearing is 30 degrees. For ...
1
vote
1answer
51 views

61.129 (a)(3)(v), can it be with multiple instructors?

My question is can the 3 hours in prep for the check ride be done with different instructors, or does it have to be all 3 hours with the same instructor? Thanks.
4
votes
4answers
177 views

Why does indicated stall speed change?

Aviation confusing me... I’ve read that stall speed doesn’t change (IAS) no matter what altitude you’re flying - of course under specific conditions ISA, 1G level flight, no wind, gross weight etc. so ...
0
votes
1answer
60 views

Does the canard config have radically different controls than classic config?

Classic configuration is something like the A320: wings in the middle, horizontal stabilizers at the tail. Canard configuration is something like the Beechcraft Starship: wings at the back and ...
0
votes
1answer
61 views

Is it possible that commercial airliners use an EMALS or other form of electric launch? [duplicate]

I am doing a big project for school over the summer, and was wondering if anyone can help? I just want a professional opinion on the idea. Is it possible or no?
25
votes
6answers
4k views

Why cruise at 7000' in an A319?

I was on a flight from Philadelphia (KPHL) to Boston (KBOS), after some delay and some change of route due to weather, the captain announced that we will be cruising at 7000' due to delays in the area....
5
votes
1answer
179 views

What is that Boeing 757 custom cockpit interface?

Cropped; flickr.com, 2008 The photo is taken in cruise. The selected display shows takeoff data. There is also a send button (which hints at a datalink capability for communicating values). I ...
1
vote
0answers
63 views

TACtical Air Navigation - Bearing Information

In the TACAN system , how does a change in bearing , would translate to a change in the time (or frequency) domain. I'll try to elaborate: I'm aware , of the TACAN operation in general. let's say ...
13
votes
5answers
2k views

C-152 carb heat on before landing in hot weather?

I know the POH for the C-152 explicitly states carb heat should be applied before landing. I fly in a tropical country where temperature is at 30°C on average on the ground, twice the standard temp. ...
1
vote
1answer
49 views

On a centrifugal compressor impeller what is the difference between the radial vanes and rotating guide vanes?

I thought the radial vanes were a machined part of the impeller that just force the airstream radially? And that another name was rotating guide vanes as they are rotating with the impeller disc.. But ...
0
votes
1answer
42 views

On a axial flow turbo fan or turbo jet engine what comes first the rotor or the stator?

I've been let to understand that one stage consists of a row of rotors and stators. But I'm not sure which comes first? Does the front fan blades make the first part of the stage (rotor) with a stator ...
0
votes
2answers
83 views

where can i get a aviation map of korea with the moes, and highways and vectors

ive been searching for a aviation map of South Korea and cant find anyone that sells it. does anyone know where I can find one for flight planning
0
votes
2answers
95 views

Distance to the runway/ touchdown point

Trying to learn about aviation, and looking through all the displays in the cockpit, and also the Garmin G1000, I am not sure where I see the distance to the runway touchdown point, or the start of ...
1
vote
1answer
101 views

What is this propeller on the A330 MRRT refueling pod? [duplicate]

Illustration taken from this youtube video Earlier in the video, it can be seen moving: Is it to provide mechanical power for the boom operation ?
21
votes
5answers
8k views

Is this one of the engines from the 9/11 aircraft?

I ran across an interesting set of post-9/11 photos and I noticed this picture in particular: The closest item on the truck looks a bit like an airplane engine, but I can't tell for sure. Is it one ...
5
votes
1answer
151 views

Why do airlines outsource regional flying?

The three major American airlines (American, United, and Delta) all have regional brands. These brands are actually operated by other airlines (ie: SkyWest). Air Canada has a similar regional brand ...
-4
votes
0answers
57 views

How does an aircraft fly? [on hold]

empstrong texthasized text Hello guys im interested to know how the an aicraft climb turn descend and stall. What are that factors that makes a certain aircraft climb turn descend turn and stall. And ...

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