Why are the airplanes losing speed?

Flying on an airplane is the fastest option for the worldwide travel. And, with the advent of jet engines, the airliners became much faster, giving travelers unprecedented opportunities.
However, over the past decades, airliners have not just not increased flight speed - they often fly at speed lower than their predecessors. This strange fact can raise the question: why, despite all the progress, do we fly so slowly? Fuel? Money? Regulations?
Let's find out!

Thank you for watching!

Subscribe to the channel, comment, like!

[UltimateBargains]

Doesn't matter how fast the aircraft is when it takes 4 hours to get through TSA security screening.

[fkkkkkenig]

As a car enthusiast I understand all too well the inverse relationships between fuel economy, weight, and speed. Loved this video dude, your explanations are on point. Subscribed

[somerandombaldguy]

As long as we're safely above stall speed, I'm good.

[flyingdog]

7.5 hourd versus 7 hours with 25% fuel savings, makes absolute sense to me.

[ivmurk]

I started noticing this when I realized flights 10 years later were taking 45 mins longer. I always thought w/ innovation they should be faster and not slower. Very interesting.

[mcmdrpiffle]

Just Wow. As a Boeing Engineer (ex since 2013) this is perhaps the most complete and comprehensive explanation of the issue.

Fantabulous Job presentating this.

[chrisparnham]

The 7373 Max has a speed of 0 mph at the present. I doubt anyone would willingly travel on one of these any time soon.

[johnborden]

Thanks, very informative video. My dad was an economics teacher, and he often talked about the concept of "diminishing returns". That certainly applies here.

[snorhyveln]

This is the most informative and professional video I've seen in aircrafts/piloting etc.. im a former pilot and aware of the content! Just great narrative!

[cjr]

The answer is, (drum roll), Fuel Economy

[rudyossanchez]

Miami here, I work within 5 miles of the airport and I can always tell when a md-11 or 747-400 is coming in, you can just hear the distinctive scream from those old engines.

[PlanesTrainsEverything]

It's amazing how much of the aviation industry is taken for granted. Thanks for a very informative video.

[FreedomTalkMedia]

The high bypass turbofan engine also reduced the loudness by 96% because air speed differential between different partitions of the air flowing out the back is less than the speed of sound.

[magyaripaul-stefan]

Fuel economy
I just spared you 20 min

[danielkandisnooker]

your english and pronounciation is becoming so good now. Heavily improved since the first videos. And I really love your content. They are super informative, amazing stuff man!

[e]

This is an excellent summary -- very well done! I started in aerospace in 1968 and recently retired; I knew most of this, but not all, and the presentation was very well thought out and concise.

[rangey]

Safety>speed
Fuel efficiency>speed
Low price tickets>speed
More eco friendly engines>speed
Noise reduction> speed

[Turboy]

Efficiency. It's just that. Slowing down a little greatly improves cost per passenger mile.

[moshfiq]

This video is full of information which I found very engaging and entertaining. I learned a lot. I also agree with the points mentioned at the end of the video as the reason of why the aeroplanes are not pushing the speed limit. For a 1.5 hrs flight, I have to go to the airport 3 hrs before to make sure that I won't ended up after 200 people in passport control line. In such situation, saving 30 mins by paying $300 more would be total waste for me.

[dirkhamilton]

The real question is "Why are aircraft seats so uncomfortable?". Maybe if they spent 1/1000 the amount of research money on seat comfort research....