You may have noticed little numbers popping onto screen throughout the video. These are referring to references in the description of the video. This was inspired by my friend, Simon Clark. Specifically this video: kzfaq.info/get/bejne/rr-EqbCI2dPInnk.html Props go to him for the clever technique.

1) L O N G 2) F L A T 3 S M Ø Ø T H

Fast and Furious Style 30 km long runway

2020.... designing the perfect parking lot for planes.

Circular runways. 13:25 “These are the kinds of issues that come about only after engineers carefully analyze the design” I don’t think it takes much thought to shoot that one down.

9:40 "Let's begin calculations with the world's largest plane: The Airbus A380" *_Antonov 225 enters chat_*

I can imagine a collab video of Wendover Productions and Real Engineering talking during 35 minutes about plane engines designs. And I would totally see that thing!!

I've been into aviation since roughly 2. Trying to learn as much as I can. I'm now 33 and I've never thought of all the things considered into the making of an efficient airport and it's runways. This single video puts so many pieces of the puzzle together. Outstanding. I learned So much!

13:30 Some four year old child designing a runway: 'This circle runway will be great! I can't see any problems at all! ' Real Engineering: 'These are the kinds of issues only found when engineers carefully analyse problems...' Real Engineering viewer: 🤔🤔🤔 seems legit.

Your topics always make general issues so interesting which would otherwise be something most of us would be indifferent to. Kudos

This video: Where Wendover and Real Engineering fans combine :)

Nearly fell out of my chair : "now, Heathrow Airport is a special little butterfly 🦋".. 😂 😂 😂

This was bloody brilliant! Thanks for putting so much work into this video dude

Just very well visualized and explained - thank you!

Maybe my favorite video of yours that you’ve made so far. Incredible job

Real Engineering: “Seeing a flight land beside you is a common sight at LAX” SFO: Am I a joke to you?

Awesome video and well explained!!

Check your facts about the balanced field length. It simply means that TODA, Take Off Distance Available equals ASDA, Accelerate Stop Distance Available. Take Off Distance, TOD, is the distance required to accelerate, lose an engine one second before V1 and then continue the take off to a height of 35 feet above the end of the TODA. Accelerate Stop Distance, ASD, is the distance required to accelerate to V1 and then stop again.

moral of the story, runways are long and every little factor makes them even longer

I always love flying through Atlanta. With those five parallel runways, other airplanes taking off and landing left and right of you. It's like jet speed drag race.

i love your videos sooo much, i love just listening to you going through all these different engineering problems, and the animation is amazing!

12:30 southwest landing was pure butter soft...

I must say, I constantly think of this video. It’s easily one of the most fascinating things I’ve ever watched. Anytime I see an airport, or am talking about airplanes/air travel, or anything like that I instantly think of this video and feel like sharing this information with people because it’s so cool. Amazing job

Great job at boiling down the complicated world of airfield design. I will be using this for the foreseeable future to help explain exactly what my job entails!

8:10 that moment when spoilers are raised how quickly aircraft lost it's lift. I know it's obvious but it's fascinating to see it.

6:02 What part of Tatooine is this airport?

I am surprised Denver international airport is not mentioned here. It is a relatively young airport, and was built a long ways outside of the city in order to accommodate massive expansion. Currently it has four parallel north/south runways, all at least 3,658m long, and the longest at 4,877m. It also has two east/west parallel runways, both 3,658m in length. The airport is designed to be able to expand to six north/south runways and four east/west runways. Another very neat design feature is that it is possible to taxi between the terminal and each runway without the need to cross other runways, which makes the airport far safer as the risk of runway incursions is significantly reduced.

6:30: Friggin’ Bethesda strikes again.

This video was really amazing! There's actually another consideration that you could include in your runway length calculation regarding the balanced field length. I've never actually heard of that term before, quite possibly because most aircraft do not require the same amount of distance to decelerate from V1 to stop as they do to accelerate from start to V1 (or possibly because I live in Canada, not Europe). This is because an aircraft uses its engines to generate the accelerating force while it uses its brakes to generate the decelerating force. In all cases I can think of, an aircraft's braking system is actually capable of generating a greater force than its engines are, meaning the distance required to stop is less than the distance required to take off. Although larger aircraft also have reverse thrust systems capable of contributing to a decelerating force, pilots are not allowed to factor reverse thrust into their V1 calculation because not all conditions will permit using reverse thrust, primarily contaminated runways (This may not be the case everywhere, as not everywhere gets as much snow as Canada, I'm only speaking from my experience). This means in the case of an uncontaminated runway there is a bit of extra margin of error and it also simplifies the calculation to determine stopping distance. For reference, I am not an engineer, I am a student pilot with approximately 200+ hours, all of which are in a C172. Assuming a standard atmosphere (29.92 in-Hg, 15 degrees Celsius, sea level, no wind (sorry for the mixed metric/imperial, blame Canada)), a C172S model has a start to wheels-off distance of 960 feet, while it has a rated wheels-down to stop distance of only 575 feet. This isn't the EXACT same as a V1 calculation, but the theory still applies. For larger aircraft, the difference between the accelerate distance and the decelerate distance is usually larger. This means you can make your V1 decision point a bit further down than half the runway, allowing airports to get away with operating larger aircraft on shorter runways. Let me just reiterate that I loved this video and I mean you no disrespect, I just know you'll find this /half as interesting/ as I do!

before v1 it is optional to RTO but after v1 It is a MUST to NOT ABORT takeoff and after 80 knots only serious issues like Engine failure Wind shears and flight control malfunctions can RTO while light issues like blown tires have to Continue with takes off

In my opinion, this channel is really underrated. All of the videos on this channel are incredibly interesting and it makes me want to watch even more. Keep up the amazing work!

Love this! Makes me that more interested in aviation and commercial air transport. Thanks for sharing!

Balanced field length is NOT twice the distance to accelerate to V1. Balanced field length is, in simplified terms, the distance to accelerate to just before V1, lose an engine and stop or equally, continue the takeoff and climb to 35 feet, either option requiring the same distance because that is how V1 is defined. That distance is the balanced field length. It has nothing whatsoever to do with being twice the distance to reach V1.

Great Video! Would have also loved to see more detail on the actual engineering of runway, like types of asphalt used, rain water drains, all the lights and maybe this cool anti runway overrun material.

Thanks for using the metric system!

Interesting about the headwind idea. My local airports IAH and HOU have runways to operate E/W or N/S. The airports normally run E/W but when there is a large storm system in the Gulf of Mexico the wind shifts to N/S and the other runways are used!

Feels like wendover has infected you with that focus on airplanes

Holy crap, from that Tibetan airport, you're pretty much already halfway to your cruising altitude. O_o

I was at Phoenix Sky Harbor during the runway closures in 2017 due to the excessive heat. In addition to the runway closures, aircraft were having trouble cooling the cabins of their planes in the heat. Surface temperatures (including heat reflectivity off of the tarmac) were reaching 60*C. I was able to book a flight out of Tucson to DFW and had time to make the 2 hour drive there and get through security, board and take off before the runways reopened at Sky Harbor that evening.

Incredible video! Informative! Physics is considered the most vital of building an airport. Lacking the calculations of the temp., airplane crash. Neglect wind resistance, crash.

Istanbul New Airport also will have 5 parallel runways once all the phasses completed. Right now, there are 2 parallel runways, which are 4100 m and 3600 m along.

I don’t think the FAA has much to say about runway spacing on Heathrow ;)

Learning a lot here. this channel and Wendover are taking my time on youtube lately and for good reason. great content. Keep up the good work

Brilliant video, I really love the presentation and the way you make everything so simple to understand.

I knew about the v1 vr and v2 speeds but I never knew about vmc, emu, vlof speeds...they are all knew to me. Thanks for telling me anyways!

I'd never considered airport altitude or temperature before.

0:50 That's the Flying Circus in Bealton, Virginia! I used to volunteer there. Great shows every Sunday, May-October.

Absolutely amazing content. Thanks for the work!

8:35 above v1, we only reject for engine fire, engine failure, predictive windshear warning, or aircraft is unsafe or unable to fly.

Nicely done, great video. PS: Love your accent

Los Angelas, Miami, New York, DC. We all have those plane problems but we are grateful not complaining about have accessibility to travel 🧳 and making your city a world city!

thx 4 v awesome vid! I love stuff about aviation, so this episode was very satisfying. Edwards Air Force Base runway is 12km long but it's not completely paved.

But what if we put an runway on top of an runway?

Dublin Airport seems to have become much more efficient in recent years. It takes barely any time to get through security in comparison to many other airports I’ve been in.

This was a great educational video and extremely well done. Thanks for sharing. Keep up the great work! 👍🏽

Your aeronautical knowledge is incredible you even had an AC as a source. Fantastic job

Just to let you know - you referred to FAA guidelines when talking about Heathrow, as Heathrow resides within territory of the United Kingdom you should refer to CAA guidelines.

The solution is clear as day, aircraft catapults!

Really enjoying your videos. Keep up the good work mate!

Very interesting and easy too follow ! Thanks

I love your channel bro

2:39 my guy came outta nowhere might as well just go head first into the runway.

Your videos keep getting better and better

Cool video! I always think about this when I travel!

0:07 *Last year, over 90% of Ryanair flights arrived on time*

Nice work and keep it up!!!! Could you do the impossible engineering of Rod of God or ROG?

The blue plane at 12:29 landed sooo smoothly..its damn satisfying!

Another wonderful and educational video. I've loved seeing your animation skills continue to blossom. That time on Skillshare is paying off :) Keep up the hard work!

The pandemic has certainly affected the need for a Third Runway, as it has for the need for the HS2. Hopefully, movement restrictions will continue to reduce the need for interconnecting infrastructures like additional Motorways.

For a moment I thought this was a video made by wendover production! Thanks for the interesting and informative video.

Such a great video, so interesting. Thank you!

Oh wow this video is so informative and interesting. Keep it up!!

0:39 Me:*sees Dublin airport* Me:well that's one way to plug your country

And then you have Schiphol, three runways north south and the rest all over the place

I really like the soundtrack for this video!

Hey that one clip of the wingwalker stearman taking off was the Flying Circus from Bealeton, VA!! I work there!!

Headwind doesn't reduce the power needed for a proper takeoff roll, but does reduce takeoff distance. The engines still need the same power to propel the aircraft through the air. Airspeed vs groundspeed.

Real Engineering: Lets take a look and the worlds largest plane. Antonov: Am I a joke to you?

One of the best 'knowledge/educational' videos I have ever watched!

Phenomenal video. Better than TV. Bravo. Encore.

possibly one of the only videos in metric that I actually wanted in nautical imperial.

2:41 "nut" 2:58 "all over the UK"

Very good video with a lot of information.

I remember how popular the circular runway was for a long time. People were going “it’s the future” (cnn, Fox, etc) and no one even considered how much of a pain it would be. Thanks for not siding with designers. Engineer gang for life

Is this wendover productions? ;) Nice vid!

Make a video on runway material design to withstand the daily impact of hundreds of hundreds-of-ton planes, please?

As a student pilot who recently gave all his exams, I can confirm, this is the most accurate of all that contain aviation related information or equations, really impressive!

This video documentary is genius! Good job!

The problem with circular runways is the weather? That's why the plane can always be facing the wind? There are bigger problems than that in the concept, but not that one.

a380 is not the largest plane, but commercial airliner

Very nice video, Its really interesting! The only thing is, according to OACI, the minimum separation distance between parallel runways for instrumental flights range from 760m to 1035m, depending if its a parallel segregated operation (lower margin) or independent paralell approach (higer margin). Just noticed this thing preparing for my exam of airport's engineerig subject heh

I’m just stopping by to thank you for your videos. Real Engineering and Wendover are the coolest channels on KZfaq.

TARMAC INTENSIFIES

alright, a 733 with winglets... 👏 👏 👏

Vmc, a yaw and roll into the inop engine. But other than that pretty good V speeds. Balanced field, accelerate-go, accelerate-stop, and others are pushed into certification of total runway length needed for air carriers to use that runway. To be a little more accurate, speeds, torque, and takeoff distance are usually requested by the pilot from either an EFB or the FMS depending on setup. This request goes to a third party company, like Aerodata, in most situations. The speeds are then delivered after final bag and passenger count is submitted. Depending on the aircraft, takeoff torque is then set into the FMS, and the pilot flying just pushes the throttles into a rating detent. There are a few aircraft where the pilot monitoring has to fine tune the throttles after the PF pushes them up. The one I fly you request numbers through an EFB, set Vspeeds on the PFD and then just push to rating detent on the takeoff. The Engine control computer will limit the torque to a max of 98% but uses density altitude information to set the torque max by itself.

I pass by LAX many times a week for work. Planes usually land facing west (landing over the 405), but occasionally they have to switch (taking off over the 405). It feels like Opposite Day when that happens.

A380 *Worlds largest passenger plane. Not the largest, that slot goes to the Antanov-225 ;)

2:33 That is a hard landing...

3:26 "Now let's find a location" Shows the Jackson Hole Wy airport where the runway is alined NNE-SSW at an elevation of 1966 meters. The prevailing wind direction? NNE.

came across this video by accident and was hooked from start to finish, very interesting stuff!