Aviation Definition and 45 Threads

Salaam I was reading an article about a new engine for Sukhoi Su-57 called AL-51F1 with flat nozzle. The text says it is a second stage engine. The engine currently in use is AL-41F1 with circular nozzle. is a first stage engine. I had two questions: What's the meaning of 1st and 2nd stage...

I tend to love watching videos by a yt content creator called "Mentour Pilot" his videos debrief aviation accidents, explains lots of the physics involved and engineering. One of his recent videos had me thinking for a little while now and I would like everyone's opinions. This video is about...

Hi I am an aircraft maintenance engineer reading about Aviation ,space and physics ( very amateurish level) are my hobbies

I was born in 1954. I live in the Philippines. I'm retired. I have been an avid aerospace/aviation fan since 12. I bought my first telescope at 13. It was a 4.5 inch Newtonian reflector. I saw the Orion Nebulae, the Andromeda galaxy, Jupiter and Saturn pass behind the moon.

https://www.airbus.com/en/newsroom/press-releases/2022-12-airbus-and-cern-to-partner-on-superconducting-technologies-for "Airbus UpNext, a wholly owned subsidiary of Airbus, and CERN, the European Laboratory for Particle Physics, are launching a project to evaluate how superconductivity can...

Hello everyone, I am Abheer and I am a high school student. Few days back I saw an article about RDEs (Rotating Detonation Engines). The article said it is the future of aviation propulsion. I want to ask, is it really so that RDEs are future or the low/high bypass turbofan engines will continue...

So my amazing wife ( a bio-chemist and gamer) was playing a flight sim. So, I love aerodynamics, aerospace engineering, and am a serious aviation enthusiast. I see that she is flying a Boeing 747 Freighter ( a heavy large 4 engine cargo plane) and she does a vertical takeoff. So mission was to...

Hello Everyone- I'm completing my Master's Degree in Commercial Aviation. I'm conducting a capstone research project about the potential of an industry shift to hydrogen, and have created a quick survey. If you have additional insight in addition to the survey, please respond in the comments...

I read lots of comments,text like this:"American, Russian or European,aircrafts all of them are German systems, ideas, experiences and technologies After World War II, Russia and America offered German scientists, engineers and researchers asylum and work under their supervision or punished...

I am a real person. I ll do my best not to ask dumb duplicate questions.

Homework Statement Hi to all, the Task I struggle with, is the range calculation from an Airbus A320 with the Breguet Range Equation which is defined as: Homework Equations R = (cl/cd) * (V/(g*SFC)) * ln(w0/w1) with V = velocity g = gravity SFC = specific fuel consumption w0 =...

So you know I've been wanting to ask this question for some time now. Everytime you hear about an aviation disaster it is usually a plane that has had some trouble either with technical stuff or less often due to pilot error or otherwise, but what I want to say with that is that a big commercial...

Hi everyone, I am new and I hope I'm putting this in the right section. I am currently a Sophomore in High school and I am building a wind tunnel. It's not for a class but rather its is like an independent study. I have been into planes pretty much all my life and I am hoping to get a pilots...

Hi, I study Applied Mechanics and I'm in the last year of my study. I try to find some interesting topic for my master's thesis that will be at least a little innovative. Topics offered by my university are unfortunately quite usual and "old-fashioned". And I want to do something a little bit...

I made a few paper airplanes. I noticed that the common paper airplane (shown below) https://i.ytimg.com/vi/v29M7Oa1l-A/hqdefault.jpg flies much further/better than paper planes that look like standard 747s. Any know why ? I expected 747 like plane to be very efficient at generating the lift...

I am having a bachelors degree in Mechanical Engineering and worked in consumer products production industry for some 4 years. I decided to go for Aerospace Engineering masters, a complete change of track from my work experience, primarily due to my passion for aviation. I wanted to ask what...

NASA has press release out today highlighting its electric aviation program via a new 4-seat X plane to explore the concept, the X-57. Most interesting to me was this claim: which I imagine comes about by having a much large propulsive air flow area across the 14 e-motors, allowing the prop...

Hello, We all know that, in Commercial aviation, we use Hyjet (SKydrol or 500B4). and in military we use MIL-H-83282 (red oil). what are the main reasons? MIL-H-83282 has a synthetic hydro carbon base and contains additives to provide the required viscosity and anti wear characteristics, which...

hello! I recently flew from Athens to London, with regular flight. I noticed that a significant part of the whole travel time is taken by the take off and landing. Why don't we develop a system, similar to helicopters, in order to achieve the fastest take off and landing? Also, I wonder why...

Given that an engine's rated power is 160 HP (~119kW), how can I express thrust (T) in Newtons, if aerodynamic drag (D) requires weight expressed in Newtons as well to ensure consistency when calculating power available (Pa) and power required (Pr)?: D = (\frac{1}{2}\rho...

I'm new to the forums but joined because of its aerospace and math topics. Just wanted to ask if anyone was interested in an aviation career. I'm considering pursuing one..not sure where to start. I did find an aviation consulting firm; "SkyCrew Aviation, Inc." apparently its for guys like me...

A 5lb Piece of equipment is installed on a aircraft on a Aircraft 45 inches aft of the C of G. A new Seat is also fitted 60 inches fwd of the C of G, Weighing 3.5 lbs more than the old seat. What is the resultant moment? I Know its 60-45=15 Im not sure do i have to use the weight for...

Hello everyone, I'm a high school 10th grader from Thailand studying at a rigorous private boarding school in the US. I have a passion for aviation and aeroplanes, and my dream is to be an aerospace engineer. The problem is though, I do not know where to start. Seeing my friends at school...

Guys, I was reading about Turbofan and somewhere while browsing Defence Turbofan engines I came across Booster stages, but I didn't find any description or what are booster stages in Gas Turbine (Axial Compressor)

My teacher gave us a problem to find the density of an object that weighs 40 lbs. and has a volume of 120 cubic inches. I think the answer is .33 lbs. per cubic inch, my teacher said it is 3.3 and some of my classmates said it was something way different. In my teachers defense he is a...

Hey guys, I'm an aircraft maintenance apprentice and I've been wondering about the air that is squeezed through a carburetor vs the carb heat air that is put through the carburetor to prevent icing. The air going through the venturi of the carburetor increases in velocity, lowers in density and...

what do you think is the next big thing in the aviation industry, what areas do you think can be improved...in terms of control systems..or mechanics... Share your thoughts!

Hello, I have a few questions about unwanted surfactants in JET A-1 fuel? Are the surfactants mostly responsible for the dissolved (trapped) molecules of water in the fuel? Could a surfactant part which is lyophobic to fuel molecules, be, at the same time, hidrophilic to the water molecules in...

Hello people! I'm a physicist (Phd student) with a good Physics background. I'd like to get some very good book about aviation in terms of Physics and Engineering. It shouldn't be very hard and detailed book since I'm not an engineer but at the same time it should contain a lot of "science"...

Hello, Don't know if anyone out there can help, but thought this would be a good place to ask. I have a small aircraft (piper arrow) that I would like to run a few devices in while traveling. These devices include a laptop, a GPS puck (GPS18) and custom unit that retains postions...

I understand the theory of radar but not aviation radar. It is my understanding they can find an objects position in the x, y, and z axis simultaneously. How does that work?

Hello, everyone. I come from hong kong. I am still barely a fresh graduate (1.5yr after grad.)with good grades in school. currently, I am working as an asst. mechanical engineer. However, I am willing to become an engineer in aviation industry. I am wondering what would be a possible way...

An MIT collaboration with the X Prize foundation may soon release a proposal for a fastest coast to coast flight using only electric power. http://web.mit.edu/newsoffice/2009/x-prize-1217.html" I am thinking some of the electric ducted fan technology discussed...

I've noticed that several of us, if not many of us, are flyers, including one of the admins. I'd like to propose a thread to discuss current aviation mishaps, or at least ones which recently occurred. It's not a place to dig up old accidents, other than as they're related to current/recent...

I have been in aviation as a mech/tech for about 20 years. Now 40ish and looking at the possibilities of going into aerospace engineering (aeronautical or electrical or...). Basically I am bored of being a mechanic all the time and want to step up to area of design it and figure it out rather...

Hi guys, I`m a student, and I need to do scientific research in order to answer some questions which have to do with science and math. I then have to write workpiece about it. Since I`m an aviation enthusiast, I've chosen to place my research in the background of aviation. I`ve made a few...

http://www.alexisparkinn.com/weird_aviation_videos.htm scroll down to bottom of page for video. Are these models? impressive looking.

I'm currently in 2nd bachelor in engineering (major mechanics and minor electrical engineering). My university offers a master in engineering with the option Aviation and Space Travel, but I can also switch to another university (in a different country) and do a master in Aerospace Engineering...

Hi, I am currently an EE and soon will be entering the workforce. My primary goal is to work for Boeing/Sikorsky/etc... for those of you that are in the industry or know of it -- what courses are absolutely crucial to succeed? Obviously, the EE fundametals, such as circuit design, signals and...

Number of weeks back I was reading in Wikipedia on plot holes in movies, one of the mentioned plot holes is in an awful movie I'm going to do my best to avoid: Battlefield Earth. But I digress. The plot hole, among others, is aviation fuel spoils after a few years, so it would be impossible to...

Hello, this topic is about Iran Airforce and its capabilities. I am an aviation analyst from Iran and I will provide you any information you need... Thanks, waiting for replis...:biggrin:

Hi,:cool: I really confuse about VOR circuit test of couse I mean for aviation, I want to know how is it working? If anyone has idea about that Please tell me.:frown: Thx a lot :rolleyes:

Whats with this bunch, land an airyplane its so simple, what a bunch of wallies, now a cross wind landing is different, and more exciting, the most difficult part of aviation i found was knowing where the heck i was.

In another thread we talked about converting to a durable economy that is not dependent on fossil fuel. Now flexibility on energy and mobility seem to be inverse proportional. In static plants you can use anything that's available. Cars are more limited although there is still a range of...

Here is a Russian-based aviation forum: www.flymig.com/forum