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How do you stay stable when landing/ Taking off on an F-35 during a VTOL landing/Takeoff?

I saw a video of a F-35 landing vertically using its fans and was curious as to how they do that without a tail rotor? Why don't they spin out like a helicopter does when it loses its tail?
Jordan Stephan's user avatar
0 votes
0 answers
31 views

ID an old aircraft

This cribbage board is a mystery I am trying to solve. It has an aircraft flanked by linked flags - they look like the Union Jack and the former Canadian Flag - and a maple leaf. It suggests that ...
kegaro's user avatar
  • 1
1 vote
1 answer
66 views

Does Boeing and Airbus perform extensive safety inspections and/or stress tests on each other's aircrafts?

I am wondering if it has been a common practice within the commercial airline industry for an aircraft manufacturer to purchase a brand new aircraft model built by their competitor and to then perform ...
user57467's user avatar
2 votes
1 answer
88 views

Do helicopters have to pay landing fee?

Is there a landing fee for helicopters? I ask because since they usually don't use the runway hence doesn't cause maintenance costs for the airport I would imagine they have at least a different fee ...
Gabe's user avatar
  • 2,779
1 vote
0 answers
38 views

MULTI LAYER INSULATION [closed]

I've been learning about MLI blankets for spacecrafts. I'm trying to figure out how to estimate the number of MLI layers that will be required at a particular orbit. The temperature range is from 300K ...
Arjun Krishnan's user avatar
2 votes
1 answer
111 views

Is a stream of air / jet exhaust low pressure?

Inspired by this answer, is a moving stream of air (Jet exhaust, rocket plume, etc) low pressure? I’ve always thought that a higher pressure area (say the combustion chamber of a rocket engine) will ...
Wyatt's user avatar
  • 2,011
0 votes
2 answers
162 views

For a given mileage, which is more profitable, multiple short flights or fewer long flights?

In a simplified scenario, which is more profitable for an airline, operating 10 short flights (400 miles) or 5 long flights (800 miles), for a total of 4,000 miles flown in each case? To make things ...
Gabe's user avatar
  • 2,779
2 votes
2 answers
227 views

What happens if you preselect your destination QNH during cruise?

I've noticed some pilots preselect their destination QNH on their side of the FCU. In order to preselect the QNH, you need to momentarily switch out of STD which made me wonder: Assuming your side is ...
user38116's user avatar
  • 575
1 vote
0 answers
46 views

Which Piston General Aviation Aircraft Engine Has the Longest TBO?

After doing some initial research, it appears most GA piston engines have a recommended Time Between Overhaul of around 2,000 hours. I was wondering if there are any other engines that may have a ...
MaddyTEX's user avatar
0 votes
1 answer
32 views

What type of charts does Jeppesen FD Pro X use?

In Jeppesen FD Pro X application in EFB (iPad), What type of charts are being used in Approach plates and High IFR enroute charts ? Provide the source, if possible.
Krishna Kanth's user avatar
-2 votes
0 answers
26 views

Declare DATCOM parameters for a specific UAV Heron

I'm currently attempting to use DATCOM to create the configuration for the UAV Heron. However, I'm encountering difficulties with its tail. Could you please provide assistance? I read "THE USAF ...
MrCR's user avatar
  • 97
0 votes
1 answer
72 views

Why doesn't the Coanda effect also pull air from inside the jet / streamline?

As explained nicely in this answer, the Coanda effect will make a streamline of air draw from the surrounding air outside of the streamline. This picture shows it nicely : So my question is what ...
Wyatt's user avatar
  • 2,011
1 vote
3 answers
155 views

How can a non-pilot land a single-engine plane in an emergency?

Can a non-pilot land a single-engine plane in an emergency? Not a big plane with hundreds of passengers and lots of computer stuff, I mean a little plane (light aircraft, propeller up front, just a ...
Mike Willis's user avatar
11 votes
3 answers
5k views

Why don't airports use different radio frequencies/channels for each plane to prevent communications from interfering with each other?

There have been serious safety incidents where multiple airplanes using the same frequency caused simultaneous messages to garble each other. For example, at Pearson International Airport (2020-03-07),...
Purple P's user avatar
  • 349
5 votes
1 answer
89 views

Does the infinite focal point in a HUD resulting from the collimation mean the HUD is ALWAYS in focus for the pilot?

I've found lots of information regarding inifinite focus/projection, and collimation with HUDs. However, I am unable to get a definitive answer to this question. I understand that the HUD is in focus ...
Ben's user avatar
  • 153
0 votes
0 answers
32 views

Is ICL Surgery Approved by DGCA in India?

In India, my physical doesn't look like a good fit for Laser Assisted in Situ Keratomileusis, LASIK, but I am considering the Implantable Collamer Lens, ICL. I am not sure if the ICL be approved by ...
Teaquila's user avatar
0 votes
1 answer
48 views

Arinc 429: how to detect the data frame start?

I am designing an Arinc429 receiver based on a micro-controller with two interrupt inputs served by a circuit converting the +/-10V standard signals into two separated 0-3.3V streams, respectively ...
Marco Sartore's user avatar
0 votes
2 answers
165 views

How much fuel can be saved in a half full of passengers plane?

On a typical airliner (let's say A320 / B737 / or similar), comparing a plane full of passengers vs one half full, how much fuel an airline can save on a trip when the plane is only half full? (This ...
Gabe's user avatar
  • 2,779
5 votes
1 answer
898 views

Which aviation flight computer is Spock using aboard the Enterprise (as a prop)?

In the recent Undecided with Matt Ferrell video Why the Future of AI & Computers Will Be Analog after about 05:44, the Original Star Trek TV show's Mr. Spock is shown holding an analog flight ...
uhoh's user avatar
  • 5,886
0 votes
0 answers
22 views

Seeking Aviation Project Requirement Documents

I am involved in an aviation project and am in need of detailed examples of project documentation to guide our development process. Ideally, I'm looking for full project document sets that include ...
Theo's user avatar
  • 1
0 votes
1 answer
65 views

737 ALT DISAGREE Non-Normal Checklist questions

1 choose IAS DISAGREE alert is not shown, and then: 2 Verify all altimeters are set to correct barometric setting. 3 choose DISAGREE alert stays illuminated: and here is the thing, WHY 4 Standby ...
cwcauc's user avatar
  • 111
19 votes
1 answer
4k views

What type of aircraft do Tintin and Captain Haddock use on their way to Peru in "The Seven Crystal Balls"?

At the end of Hergé's The Seven Crystal Balls (first published 1943-1944), Tintin and Captain Haddock fly to Peru in a relatively big seaplane (or flying boat?). Is it a real aircraft? If so, what ...
Honza Zidek's user avatar
0 votes
0 answers
23 views

Shuttle dance bank angle timeline [migrated]

I'm trying to see how much capacity the Shuttle had for reducing reentry temperatures by adjusting trajectory. So far, I've only been told then the Shuttle banks up to 80° during reentry. But is that ...
Abdullah is not an Amalekite's user avatar
5 votes
0 answers
187 views

"Air Force One" outside of US airspace

Does the USAF aircraft carrying POTUS use the call sign "Air Force One" when in other countries' airspace? I could see some countries getting a bit miffed, seeing as they have their own air ...
user95861's user avatar
0 votes
1 answer
94 views

How did the engines on the ME-262 work? [duplicate]

I have been looking into the ME-262 jet engines recently but cannot quite understand how they worked and was wondering if anyone could explain it to me in a simplified way.
Jordan Stephan's user avatar
0 votes
2 answers
97 views

How do I choose Cl during cruise flight with a given MTOM and variable S?

Currently I'm challenging myself to build an airplane from scratch. I have a background in aeronautical engineering but I have no experience in actually designing an aircraft from the ground up. (FYI: ...
eckh_ma's user avatar
  • 11
8 votes
2 answers
3k views

C-130 supreme propulsion on thought experiments

I watched some youtube shorts of someone playing a simulator and having planes start off from the roofs of tall buildings and trying to takeoff before they crash. For some reason, that creator ...
George Menoutis's user avatar
1 vote
0 answers
42 views

Use of Type V platform for regular Air Cargo Transportation with MB-1 chain set

As background, military air transportation is regulated by Technical Orders, Field Manuals, etc. In this case, TO 13C7-1-5 is the one that regulates Platform Delivery System, used for cargo airdrop. ...
daniel Rubio Ferron's user avatar
-3 votes
3 answers
149 views

Why can't you hear an aircraft traveling at Mach 0.95 until it passes?

So say an aircraft is traveling at Mach 0.95 towards you. It's almost going faster than the sound waves it's making. Now say there's a speaker or something on the nose of the aircraft facing forward. ...
Wyatt's user avatar
  • 2,011
1 vote
1 answer
182 views

What is the reason for a taxiway centerline to extend parallel to the runway centerline?

Why does the taxiway centerline extend on this long distance on the runway?
Deepak's user avatar
  • 231
0 votes
2 answers
127 views

Would a plane similar to a Lockheed Cl-1201 that is capable of deploying jets mid-air be practical in modern day military use?

In the late 1960s Lockheed was reportedly looking into making a massive nuclear-powered jet plane capable of staying in the air for around 41 days and also capable of carrying up to 22 fighter ...
Jordan Stephan's user avatar
1 vote
0 answers
33 views

Does air create a high pressure zone once the low pressure zone is filled in? [migrated]

So say you have a sphere of low pressure air (let's say a 0.5 atm sphere in a 1 atm environment). Air would rush to fill in the low pressure, therefore it would accelerate to the center of it. Wouldn'...
Wyatt's user avatar
  • 2,011
17 votes
1 answer
1k views

First airplane with software?

What is the first airplane equipped with software system? Any type of avionics with the computer code, probably the compiled file. I searched in Google, and it sounds like the F-8C Crusader jet ...
Cloud Cho's user avatar
  • 273
0 votes
0 answers
38 views

Geographical locations of ARINC and SITA ground station

Is there an up-to-date list of ARINC and SITA ground stations? The German Bundesaufsichtamt für Flugsicherung has published a PDF leaflet which lists various ACARS frequencies, including those for ...
Abdull's user avatar
  • 101
-1 votes
0 answers
49 views

I am trying to plot Cp vs x/c graph on MATLAB as an assignment. But I think I am doing something wrong here [closed]

Basically, the assignment is to use the plot to eventually find stagnation points. The code that I am using : ...
Dhananjay Dixit's user avatar
2 votes
2 answers
307 views

Pitch of a glider with altitude

I'm designing a high-altitude glider. Just to clarify a few points before my question: The glider will weigh close to 200 grams. It will be using the A18 airfoil. The glider is dropped from 80,000 ...
Charles Nicholson's user avatar
4 votes
2 answers
4k views

Why is this plane flying in circles?

I've been watching this flight after they declared a general emergency and now they are following this oval flight path. Why would that be?
Maddy Gray's user avatar
4 votes
2 answers
175 views

Can an F-35 perform a cobra maneuver using its lift fans?

Can an F-35 perform a cobra maneuver using its lift fans? I have no experience flying F-35s I fly a F-18 Super Hornet.
VFA-34's user avatar
  • 1
6 votes
1 answer
112 views

Optimising Continuous Descent Approaches (CDA): Seeking Strategies and Rules of Thumb

Ideally, approaches should be executed as a continuous descent approach (CDA), maintaining idle thrust and only levelling off (or reducing vertical speed to <500 fpm) briefly to reduce speed, while ...
tedioustortoise's user avatar
-5 votes
1 answer
65 views

Russian SU-57 vs US F-22s; who would win? [closed]

Let's say that Russia acquired a full squadron of SU-57s. Who would win? So they are flown by the same cloned person and have the same training. Both fighter squadrons have the exact same ground radar ...
VFA-34's user avatar
  • 1
9 votes
2 answers
3k views

Is there a valid case to do the imposible turn(180)?

It has been said many times not to do the imposible turn(180) after takeoff since almost always it ends in a fatal crash. My question is, if you are flying a Cesnna 172, or any single for that matter,...
Gabe's user avatar
  • 2,779
4 votes
2 answers
1k views

Does anyone know why the Horten Ho 229 V2 crashed?

On February 18, 1945 the German Horten Ho 229 crashed due to an engine failure and I was wondering if the failure was caused because of the planes irregular shape or some other external factor. I will ...
Jordan Stephan's user avatar
2 votes
1 answer
677 views

How does one "emergency extend" the right main landing gear of a B-52 Stratofortress?

In an April 11, 2024 video an embedded CNN crew documents a 33 hour B-52 Stratofortress round trip flight between Barksdale Air Force Base in Louisiana "flying near Russia, China, North Korea, ...
uhoh's user avatar
  • 5,886
5 votes
2 answers
1k views

How Long Will Boeing Keep the 737 in Production? [closed]

Due to the immense costs involved in the certification of a new type, Boeing has continued to iterate upon the initial 737 type with the most recent models being the 737 NG and MAX. Will they continue ...
MaddyTEX's user avatar
0 votes
0 answers
61 views

Shot in the Dark: I need some help on innovative but achievable project ideas [closed]

I'm approaching my final year in Aerospace Engineering (University Level). I've had some ideas for the final year project, some are farfetched and some are not very innovative. I need to find the ...
Brandon Barker's user avatar
0 votes
1 answer
57 views

How I determine numerically the pitch rate of an aircraft?

I have done aerodynamic analysis on a UAV. Is it possible to calculate pitch rate and yaw rate of my UAV depending on design parameters? (I have aerodynamic analysis of the wing, CL, CD, MAC, W, etc.)
A K's user avatar
  • 1
0 votes
4 answers
131 views

Which is more efficient, thickening an airfoil or adding a bottom-surface curve?

So if you were to take a standard airfoil and increase the thickness, you’d increase the lift (Bernoulli’s principle), but it would also increase the drag. Now imagine you have the same airfoil, but ...
Wyatt's user avatar
  • 2,011
0 votes
1 answer
39 views

At what Reynolds Number does laminair airfoils stop working as expected?

I was watching a RC Plane builder on YouTube create an airliner on a 3D printer and noted he used the scale laminar airfoil of a B-727. It seems to me that laminar airfoils don't work at the scale of ...
jwzumwalt's user avatar
  • 11.5k
0 votes
0 answers
107 views

How do the various Weight on Wheels (WoW) systems work?

I know that Weight on wheels (WoW) switches indicate whether the weight of an aircraft is resting on its wheels. WoW information reveals whether the aircraft is airborne or on the ground. It also ...
samnoon's user avatar
  • 101
6 votes
2 answers
1k views

Can ATC assign speed adjustment to aircraft on final approach course?

According to FAA Order 7110.65AA, 5−7−1.b. Do not assign speed adjustment to aircraft: 4. Inside the final approach fix on final or a point 5 miles from the runway, whichever is closer to the runway. ...
iop0453's user avatar
  • 175

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