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1answer
97 views

Live streaming cockpit to air traffic controllers [duplicate]

I was reading about the missing of the Malaysian flight 370 and was wondering if it would have been helpful if the cockpit would have a live streaming service where they live stream what's happening ...
11
votes
2answers
3k views

Why is the ball no longer centred in a multi-engine airplane with inoperable engine?

I'm currently working on my PPL, and whilst trying to understand fully how the turn coordinator works, I got down a rabbit hole that makes me question my understanding, and that I can't dig myself out ...
4
votes
1answer
340 views

Is it legal to hire a test pilot to conduct the first flight of a homebuilt ultralight in the United States?

Is it legal in the United States to hire a test pilot to conduct the first flight(s) of a homebuilt ultralight? This seems like a bit of a grey area- FAR 103.1(b) states that an ultralight aircraft is ...
2
votes
2answers
88 views

How are the wings of the Rutan Quickie constructed?

I’ve read that the Rutan Quickie uses wings which are hot-wired out of foam and covered with fiberglass, but I’ve struggled to find further details. What type of foam are the wings cut from, and are ...
-3
votes
2answers
177 views

Why don’t fighter jets use symmetrical airfoils?

Won’t they be more manoeuvrable in dogfights?
0
votes
3answers
141 views

Is Peter Sripol’s Mk4 ultralight design safe and/or practical? [closed]

I recently rewatched Peter Sripol’s Mk4 ultralight video Obviously, the aircraft flew, but I have several questions as a result. First and foremost, is a vinyl-covered ...
3
votes
1answer
79 views

How do one "force" VNAV climb mode through a set altitude constraint?

Let's say I'm flying out of EGPH, there is a first altitude constraint at 6000ft automatically set by the FMS. After departure, I will engage my VNAV to climb on profile. VNAV will hold at 6000ft no ...
2
votes
1answer
62 views

Does the Remote Indicating Compass (old type) both have precession motor and a torque motor?

I am teaching aviation students theory for the ATPL Exam. And one of the subjects, instrumentation, there is question on the exam that has stumped me. It claims that the torque motor that will drive ...
10
votes
1answer
747 views

What is the difference between CTAF and the Tower frequency? Why does the Chart Supplement list the same frequency twice?

At many part-time towered airports the Chart Supplement will have a listing along these lines: COMMUNICATIONS: CTAF 119.2, TOWER 119.2 (1400–0500Z‡) The CTAF is the same frequency as the Tower. What ...
-1
votes
0answers
115 views

Do the rule-making docs preceding the 9-16-93 "alphabet" airspace re-designation indicate that these phrases were meant to exclude E3/E4 "extensions"?

Note-- this question is specifically about the content in the rule-making documents leading up to the September 16 1993 "alphabet" airspace re-designation, which is when the terms "...
2
votes
1answer
97 views

What is the explanation of R28///// in METAR? [duplicate]

In an Aviation Routine Weather Report (METAR), what is the explanation for R28///// in the RVR section? R28 stands for Runway 28 ...
7
votes
1answer
347 views

Why is the treatment of magnetic variation different for NDB and VOR?

Why in solving numerals of NDB and VOR, do we apply variation at the station in case of VOR and at the aircraft in case of NDB?
10
votes
1answer
2k views

Did SWA 997 deviate from the planned stabilized approach to rwy 04 and instead land on 31?

On Monday, January 3, 2022, Southwest Airlines Flight 997 from STL to LGA landed with the following flightpath: The flightpath deviates from the planned stabilized approach to Runway 04 and instead ...
1
vote
1answer
216 views

What does "DO" in "DO-160" stand for?

What does "DO" in "DO-160" stand for? Is it short for document? I have searched the internet but it only mentions the document details.
2
votes
1answer
187 views

On fighter jets (e.g. F-16), do the leading edge flaps extend above the retracted position, as well as the more typical down extension?

Do they go both up and down (with respect to a retracted position in the middle) on different fighter jets?
2
votes
1answer
127 views

Do ultralights registered in Germany require an annual inspection?

I'm trying to find out how the German Ultralight aircraft ongoing inspections system works - do German registered Ultralight need to be inspected annually before they can then be operated for a ...
7
votes
2answers
377 views

What aircraft are susceptible to 5G C-band altimeter interference?

There is apparently a great deal of consternation over the pending expansion of 5G The emergency petition claimed that interference from the C-Band "will cause irreparable harm and jeopardize ...
8
votes
1answer
1k views

What does a "runway hold position sign" denote?

I'm wondering why I got this question wrong, as I thought the point of hold positions were to protect aircraft from each other. Any ideas?
0
votes
1answer
144 views

Does the 737 have a higher aspect ratio than most later 7X7's?

In this video: The Insane Engineering of the 787 there's a chart (at around 10:40 in) which shows that the 737 (which series?) has an aspect ratio of over 9, while the 747, 757, 767 and 777 rise from ...
4
votes
2answers
178 views

Do large cities contain enough iron to significantly affect an aircraft's magnetic compass?

In most areas of the world, the magnetic compass is the ultimate heading reference. Although pilots look to the directional gyro most of the time when flying (because the directional gyro's reading ...
7
votes
3answers
244 views

Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not?

Smaller, cheap, RC helicopters generally have very pronounced twist in their blades, and also vary their chord - slightly larger, slightly more expensive RC helicopters have no visible twist or chord ...
6
votes
2answers
512 views

How do fighter jets pre-flight so quickly?

Military fighter jets can get in the air and to their target in minutes and faster than almost all other aircraft. How do they achieve this considering that a normal pre-flight alone takes ~10-15 ...
1
vote
1answer
73 views

What minimum equipment is needed to generate a METAR + MOS?

What specifically is the minimum equipment needed to generate a computerized METAR with: Wind Ceiling Visibility WX Temp DewPt Altimeter Density Alt Clouds and a MOS with: Winds Visibility Clouds ...
18
votes
5answers
4k views

Would an airliner climb higher late in the flight because of the consumed fuel (lighter airplane) to save more fuel?

Some people said airplanes would fly higher in the late period of each flight, because the fuel is consumed, and the airplane is lighter. Higher altitude and less dense air is enough to support the ...
3
votes
1answer
338 views

Is it legal for a pilot to takeoff/land at an non-towered airport if the pilot controlled runway lights are inoperative?

In the U.S., at night (as defined in FAR 1.1) at a non-towered airport in Class E surface airspace with pilot controlled/activated runway lights, is it legal for a pilot to takeoff and/or land if the ...
2
votes
1answer
105 views

Are horizontal engine pylons generally shaped to provide lift (in either direction)?

Most civil multiengine jets and some civil multiengine propeller aircraft have engines mounted in nacelles on the ends of pylons extending some distance away from the wing or fuselage. Wing-mounted ...
1
vote
1answer
64 views

Examples for the benefits and importance of having a Boundary Layer

I understand what a boundary layer is and how it is formed. Mostly these boundary layers are related to increasing skin friction drag of the body. Please could you give some examples that show the ...
0
votes
1answer
57 views

Are there any published travel guides for GA Pilots? [closed]

Are there any published travel guides for GA Pilots specific to the US? Kind of like Michelin Guides, except for airplanes instead of cars and highlight scenic, historic or notable routes?
-4
votes
1answer
155 views

Would blade-less (Dyson style) jet engines work? [duplicate]

Is it possible to design an aircraft with blade-less (same concept as Dyson) design to generate thrust? What are some of the key benefits, drawbacks and examples of attempts (if any) at this kind of ...
3
votes
1answer
152 views

Can you fly to a U.S. border airport without any paperwork?

In most cases, one can fly VFR in the U.S. without any flight plan. However, if you are crossing an ADIZ, it is my understanding that you have to file a DVFR flight plan. Consider an airport such as ...
0
votes
1answer
124 views

How many nuclear weapons have been lost- and not located or recovered-- from aircraft in crashes or other mishaps? [closed]

How many nuclear weapons have been lost- and not located or recovered-- from aircraft in crashes or other mishaps?
3
votes
3answers
710 views

What causes ram air turbines with more blades to spin slower than turbines with two blades? [closed]

Lets say aircraft has two ram air turbines that work as generators to produce electricity on each wing. One has two blades and one has 8 blades, both with the same diameter. What is the aerodynamic ...
10
votes
2answers
1k views

How exactly do the Beechcraft 1900's stabilons work?

The Beechcraft 1900, in addition to the usual wings and vertical and horizontal stabilizers, and the extra vertical tail surfaces added for improved directional stability, has a pair of horizontal ...
0
votes
1answer
224 views

What are the speeds of the windshield wipers on an A320?

In the Airbus A320, the overhead panel wiper selector knob has three settings: Off, Slow and Fast. At what speed do the wipers operate in Slow and Fast mode?
1
vote
0answers
83 views

Why did South Africa retire its Atlas Cheetahs?

South Africa sold its Atlas Cheetahs to Equador and bought JAS39 Gripen from Sweden. What was the reason for retiring those Cheetahs when a lot of nations are still using Mirage-3s and 5s? South ...
4
votes
1answer
143 views

Drain line under drag chute door of F-4 phantom

What is this drain line under the drag chute door on the F-4?
5
votes
4answers
285 views

Which frequency to contact when arriving at a Class C airport when the tower is open, and which frequency when it is closed?

I came across this question on my PPL exam and I'm not able to properly interpret some pieces. The question is: When approaching Lincoln Municipal from the west at noon for the purpose of landing, ...
2
votes
1answer
92 views

How does aircraft leasing work?

I've noticed on websites where you can buy and sell aircraft, such as controller.com and trade-a-plane.com, there are often aircraft that are available for lease. For example, there is a 1997 Bonanza ...
15
votes
2answers
1k views

Is any of the Ingenuity helicopter's special design attributes helpful in improving helicopters flying in Earth's atmosphere?

According to Wikipedia, the Ingenuity helicopter is an astonishing piece of engineering having some attributes beyond the equivalent of the classical helicopters: The lower gravity of Mars (..) only ...
1
vote
0answers
25 views

UK noise certificate for below 9000kg?

This is regarding UK regulation - The Air Navigation (Noise Certification) Order 1990. I am curious what is the reason of specify this particular upper weight limit here: "every propeller driven ...
0
votes
1answer
34 views

How to convert European ATC license (and medical) to FAA equivalents?

I have an Air Traffic Controller license issued by the European union (compliant with ICAO standards). Ratings for tower and approach radar with current validations for both. How can I convert this to ...
1
vote
1answer
44 views

Formation of Clouds in High Pressure Systems (Western Australia - Perth) [closed]

High pressure systems are normally correlated with stable atmospheric conditions with little to no cloud cover, but due to this minimal cloud cover, doesn't that open up the ocean / ground moisture to ...
2
votes
0answers
128 views

Why do white marks on the spinners in front of engines have different patterns? Not Yellow? Omitted for some models?

In aeroailas' answer I understand that the cones in front of the props/fans are called spinners. In Farhan's answer I understand that the ehite marks painted onto the spinners act less as scarecrows ...
2
votes
1answer
142 views

What does "outside controlled airspace above 1200ft AGL" mean?

I came across the following question when prepping for my PPL written exam: "During operations outside controlled airspace at altitudes of more than 1,200 feet AGL, but less than 10,000 feet MSL, ...
10
votes
1answer
1k views

What is this sound on a B737-800 Takeoff?

Does anyone know what this sound is at 12:56 on a B737-800 takeoff? The aircraft is N822SY, the airport is Denver Intl. Airport, and the runway is 34L. Thanks and have a great day!
5
votes
1answer
207 views

Is IWA (Phoenix Gateway) a Federal Contract Tower?

how can I find out which airports are operated by the FAA and which are FAA-contract (or even independently operated)? I'm currently looking specifically at IWA, Phoenix Gateway Tower.
3
votes
1answer
141 views

Can non-FAA towers employ foreigners?

I understand you must be a US citizen in order to work ATC with FAA. Is it different with the non-FAA towers? Could I as a European citizen be employed (working visa/greencard) there?
25
votes
6answers
6k views

Do airplanes really expose their internal wires and electronics like this on the wings when braking?

While watching a video today about airplanes and how they have little thingies on their wings to make them come to a stop much quicker than otherwise, I noticed something very odd: Are those cables ...
-2
votes
0answers
33 views

Mass flow rate for jet engine combustion [duplicate]

Want to know about the mass flow rate in typical turbofan engine combustion chamber
-1
votes
0answers
81 views

Drag Coefficient of a missille

Can someone help me find a way to estimate the drag coefficient of a missile, the shape of the missile depends on a lot of variables, and i would like to have a fast way to determine the drag ...

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