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Real Engineering
Real Engineering 5 महीने पहले
Notebooks are available here. Feels cool to create merch that is actually useful. standard.tv/re-notebook
PugsOP 18 दिन पहले
015A 4 महीने पहले
hi i'm in my freshman year of high school now i would have bought and contributed to the sale of the note books but unfortunately i only use and need binder paper but i'm gonna buy it because i'm taking industry technology classes and auto cad and solid works sucks for making a simple idea drawing of something that might not work so i'm gonna beg my parents to get me another note book and only this one so i can make simple drawings to just get the basics of what i want to use
James Metz
James Metz 5 महीने पहले
Thanks so much for these notebooks, I needed some for school this semester but was disappointed by similar versions, if you keep these in stock that would be amazing
Nxdav 5 महीने पहले
Literally bought one the second I saw it.. this is gonna be really helpful! Thank you!!
Seimen Veldt
Seimen Veldt 5 महीने पहले
What kind of grid is it? We EU students need 1cm grid notebooks..
Max Jones
Max Jones 6 दिन पहले
So basically fighter jets have adhd, so it's easier for them to notice things and do things but harder for them to focus without intense input telling them to do so. Source? me, as a spectrum individual.
Kevlar 8 दिन पहले
That feeling when you're scared of turbulence not because of a fear of flying, but rather because of a fear of motion sickness induced nausea.
Ben G Vegas
Ben G Vegas 9 दिन पहले
9:11 my city
Dark Angel
Dark Angel 13 दिन पहले
Bernoulli’s principle is inverted in supersonic flight compared to subsonic flight
Simon 13 दिन पहले
Can you please do a video about the issues of the Boing 737 max. Is the problem there related to the stability you describe in this video?
VicPapefu 15 दिन पहले
I was a fighter jet pilot and flew different configurations supersonic planes. More unstable jet planes, which in general have small close to triangle wings, usually require more speed to land them, and for us that is an issue mostly if you need to land in a very short landing place; and that's why you have a parachute in the rear of the tail. If the wings are too short, for instance MiG-21, and you want to land as short as possible, you can learn how you push the parachute button when still like 6 feet over the ground, though you need to know in that case how to handle the nose of the plane.
Jaromír Anděl
Jaromír Anděl 16 दिन पहले
And I thought it depends mainly on position of CG and CL. When the CL is behind the CG and let's say the nose is going up: the AoA is increased->lift is increased->aircraft is moved back to stable position. When the CG is behind the CL and let's say the nose is going up: the AoA is increased->lift is increased->rate of attitude change is increasing.
gonzalo moreno andonaegui
gonzalo moreno andonaegui 17 दिन पहले
Real Engineering If T-tail configuration is so advantageous, why most commercial aircraft don't use them ? Why it is used mostly in heavy cargo aircraft ?
Faybie 22 दिन पहले
Your explanation was not faulty, people on the internet want to interpret things differently than they are intended because they want to create turmoil for fun. Your x-29 video was next to flawless and you have nothing explain.
VLNOW 24 दिन पहले
Been binge watching your channel lately. Thanks for your work and your clear explanations.
Trung Le N.Q
Trung Le N.Q 25 दिन पहले
$15 for a notebook, boi you over-rated
clipside 28 दिन पहले
real engineering putting these expert wannabe commenters in their place with real science...
Harrys Kydon
Harrys Kydon महीने पहले
Hey dear real engineering can you make a video on variable sweep wing?
Christopher Andersen
Christopher Andersen महीने पहले
I know u want to make money but watching 2 mins of commercials just to have you spouting ur sponsor is a complete turn off
The Rcproject
The Rcproject महीने पहले
what about a video about wing design and how it may effect flight envelope by looking at different aircraft
Jesse Lima
Jesse Lima महीने पहले
The best explaination!
awf2512 महीने पहले
Huge respect to you,having just passed my principles of flight exam you made the stability chapter more "understandable" and logical.Thanks a lot.
Hugo Amkreutz
Hugo Amkreutz महीने पहले
that will be in the description be-below. did anyone else hear that at the end?
sabin_playsroblox YT
sabin_playsroblox YT महीने पहले
The straight wings made planes extremely agile in the second world war but sweapt wings causes less stability just like the ball and valley pronlem
Shalabh Saxena
Shalabh Saxena महीने पहले
8:19 a typical Ryanair landing
Marcus MIDI
Marcus MIDI 2 महीने पहले
Amazing :)
A Winner
A Winner 2 महीने पहले
8:17 that plane was a lot lower than I expected
A Winner
A Winner 25 दिन पहले
To the person that liked this. How did you find this comment after a month?
Lilly Anne Serrelio
Lilly Anne Serrelio 2 महीने पहले
I just learned more about aerodynamics in 12 min from this video then I did from an entire week in my high school physics class.
Recruit Lucier
Recruit Lucier 2 महीने पहले
8:15 code brown code brown let's get me some new pants
Kid Genius
Kid Genius 2 महीने पहले
thank. That's all I can say: Thank you. I have always wanted to understand more about aerodynamics and the forces behind it. (Btw, I'm not sure if aerodynamics is the right word) Now I understand... I think. Correct me if I'm wrong. Fighter plane wings are straight to make it purposely unstable, compared to airliners and even the F-4 Phantom,k right? If I'm right, that's because of you, Real Engineering. Thanks.
Nitrocide 2 महीने पहले
Commenter: *incorrect comment* Real Engineering: *YOU DARE OPPOSE ME MORTAL*
EXL Playz
EXL Playz 2 महीने पहले
Speak English. Not “I LIKE PLANES”-ish.
EXL Playz
EXL Playz 2 महीने पहले
What if in the valley, the valley has to much friction (grass). The ball might be stuck on the hill...
Vagelis Axarides
Vagelis Axarides 2 महीने पहले
@3:55 what a beautiful shot of my city
evolboost 2 महीने पहले
If only we could apply these stability lessons to girls...
Ryan Smith
Ryan Smith 2 महीने पहले
I mean.... a fighter is really just a rectangular box with an engine. Good thing for thrust vectoring tho
El Game'o Cammando
El Game'o Cammando 2 महीने पहले
people actually thought more is good? lol you would think you'd know too much of anything ia bad.
El Game'o Cammando
El Game'o Cammando 2 महीने पहले
Too little too nice, Perfectly balanced as all things should be.
athanasios koukoulis
athanasios koukoulis 2 महीने पहले
Students pilots watching your video also!
Bhavi Rathore
Bhavi Rathore 2 महीने पहले
2:39 the side view not being in line with front view really is discomforting for me.
a nonymous
a nonymous 2 महीने पहले
The Harrier family of aircraft were well known for their Anhedral wings allowing for incredible maneuverability when rolling, when this was considered unsafe the british government mandated that a system be put in place to reduce the risk of instability, the royal air forces solution was to install the system, but not actually attach it to the aircraft mechanics and avionics, thereby obeying the law but maintaining the effectiveness of the harrier. (Or so I have been told)
Max sucks at games
Max sucks at games 2 महीने पहले
All I learned Is that Cessena 172 was designed by a smart dude and that fighter jet designers are murderous monsters
RSGTomcat 2 महीने पहले
As an aerospace engineer, I just wanted clarify one detail: Downwash is not really a substantial factor in the static stability and control of an aircraft in the sense that you described. It has an impact on the tail aerodynamics, yes... But it's affect is accounted for in the angle of incidence of the horizontal stabilizer during the design phase of the plane. That's why it's impact doesn't really affect the stability as substantially the way the video implied. The downwash vector stays about the same with constant AoA and increasing speed. It does change with varying wing AoA, but that's more of a dynamic issue than a static one. If the designer wants an effective AoA on the h-stab of -2° and the wing downwash produces -1° of effective AoA in the local free stream airflow around the tail, then the H-stab will intentionally be placed at -1° from the fuselage centerline because that is -2° from the local free stream air at the tail. Lift is a function of AoA and speed. The angle of incidence acts as a constant AoA of the h-stab (including accounting for downwash) relative to the velocity vector of the plane. The velocity changes with altitude as the attitude goes from upwards pitch to climb and slow down, to downwards pitch to descend and speed up. Everything else was spot on.
Zaspany Flegmatyk
Zaspany Flegmatyk 2 महीने पहले
Thanks, I actually study control engineering and I really found it inspirational :D
asdasd aasfdsf
asdasd aasfdsf 2 महीने पहले
Weston Harris
Weston Harris 2 महीने पहले
- sees name of video - - has flashbacks of every plane every built in KSP - Literally though, I spent ya. About half a day trying to fix a fighter jet that I have no clue what the problem is.
Ilias C
Ilias C 2 महीने पहले
3:54 Thessaloniki Greece
Aroop Roelofs
Aroop Roelofs 2 महीने पहले
With this knowledge, I managed to build an airplane in KSP that isn't hypermobile :>
Airguardian 3 महीने पहले
There's many misleading things on this video. First and foremost, the unstability of a FSW design like the X-29 or Su-47 doesn't come inherently from the planform design of the wings but rather from the placement of CG relative to center of lift. A forward swept wing aircraft can perfectly be designed to be stable. Then, the video of the hornet crashing at 8:10 has NOTHING to do with the topic of stability. In fact that plane was designed to be statically stable if I recall correctly. That accident happened because of an engine flameout during a high-alpha pass inducing too heavy of a yaw-rolling coupled moment for the pilot to compensate. Then you hint that the energy that needs to be spent on control surfaces to recover back to 'balance' when maneuvering is much higher than what it is in practicality for unstable designs while not mentioning or accounting for the fact that 'stable' designs also pay for their stability with 'trim drag' energy bleed. You are also referring to plane trajectories with regard to stability in a way that only makes sense for trimmed aircraft with the control surfaces being fixed without pilot input, not for planes with computers running them... Usually your videos are great, but this one didn't reach your usual quality standards. Not sure if you rushed it or just don't have enough grasp on the subject. :'(
Amir Alavi
Amir Alavi 3 महीने पहले
Boy you are an F-15 fan. No complaints tho, it's a nice bird!
Peter Smythe
Peter Smythe 3 महीने पहले
Ok a couple things: 1. Aircraft have a center of pressure, not lift. Drag, lift, and downforce are all pressure forces on the aircraft. 2. It's perfectly possible for a poorly trimmed but statically stable aircraft to automatically pull itself into a power-on stall.
Peter Smythe
Peter Smythe 3 महीने पहले
Static stability implies STRAIGHT flight. But not level. A lawn dart is excessively statically stable, but will plow itself straight into the ground even with a rocket motor attached to it.
Gehtdi anschasau
Gehtdi anschasau 3 महीने पहले
7:04 It might be a flawed concept, but making this wings adjust that fast and still withstand air resistance at fighter jet speed is amazing.
Stormy Campbell
Stormy Campbell 3 महीने पहले
As an engineering student in high school, and aspiring pilot, I sometimes question if aviation is really the route I want to go in life. Then I find myself on youtube and end up finding new ways to fall in love with the industry all over again.
Christyandi K
Christyandi K 3 महीने पहले
I too can be (emotionally) unstable
Jeffrey Stroman
Jeffrey Stroman 3 महीने पहले
This is an excellent video, thanks
JOSEF BORG 3 महीने पहले
I think your idea and use of 'automatically' is very flawed, no aircraft designed will return to or maintain a stable flight without input from the pilot... This is for large passenger planes, commuter planes that are smaller and fighter jets. There are many factors behind this reason and it would take a proper understanding of flight physics to explain it for clearly, however it should suffice for you to understand there is a reason and aircraft has controlled surfaces and that is primarily to keep the aircraft in a stable and purposeful flight path. All aircraft left to themselves will roll and crash!
RageAlert47 Of The Ragers
RageAlert47 Of The Ragers 3 महीने पहले
Normal people: But Real Engineering: *_Bot_*
Everythingman 3 महीने पहले
According to a Grumman engineer who worked on the program the X-29's instability came from it's canards, not the forward swept wing. It was quite safe too with both analog and digital slight control systems. And for unstable aircraft the tail produces lift to push the nose down, not downforce to push it up.
Sukacita Yeremia
Sukacita Yeremia 3 महीने पहले
OK, now, is it possible to make a plane that are unstable changing to both directions?
Bryce McCormick
Bryce McCormick 3 महीने पहले
Gotta keep those poles in the open left hand plane!!!
Jim Jam
Jim Jam 3 महीने पहले
I'll have to watch this multiple times.. but I'll be back. Cheers
Ankur Vashishtha
Ankur Vashishtha 3 महीने पहले
Real Engineering to comment section:- How do you like them apples?
Yash Nalawade
Yash Nalawade 3 महीने पहले
Would really appreciate if you make a video about why almost all 5th generation stealth fighter jets are have similar design.
Juna Antara
Juna Antara 3 महीने पहले
Sooo why su 47 chould be that success then x-29. U.S are unable combine art and lethal with same time
dumdumbinks274 2 महीने पहले
The Su-47 wasn't successful...
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