Why are planes slow? Everything else is speeding up: smartphones, the Internet, the pace of life in general! So when are we going to get a superfast passenger jet that can cross continents in the time it takes to watch just one inflight movie versus several?
Speed has always interested engineers and pilots. At least at first, they were pretty good at getting these metal birds to fly faster and faster. As long ago as in 1945, a German test pilot reached a speed of 610 mph. But then, something happened and speed stopped growing. Any guesses why?
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TIMESTAMPS:
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When a Boeing 747 survived a fall at supersonic speed 🛬 4:10
Passenger planes that fly faster than sound 5:09
... and why we don't use them now 6:07
Btw, it's for the best. Wanna know why? 👉 6:52
#planes #aviation #brightside
SUMMARY:
- If you’ve ever stuck your hand out the car window, then you know how much force air can have. You don’t feel anything if the car isn’t going that fast.
- Just imagine the aerodynamics of a plane flying faster than 767 mph. Air particles, which used to move around the plane in a kind of circle, now can’t keep up the pace.
- Flying at supersonic speeds against all that pressure from the air in front of you is like trying to run through a crowd.
- Still, there was a case in 1985 when a Boeing 747 survived a fall at supersonic speed.
- But what about planes actually meant to fly faster than sound? They have sharp edges and straight lines - unlike the softer contours in subsonic planes. They also have arrow-shaped or triangular wings.
- There were 2 jets used for commercial flights too: the British-French Concorde and the Soviet Tupolev TU-144. These bad boys could reach speeds of about 1,550 mph at a height of 60,000 ft.
- The fate of TU-144 was dramatic and short-lived. It was only used for 3 years from 1975 to 1978 with just the last 6 months being commercial.
- Concorde burned through 5,600 gallons of fuel per hour, while a Boeing 747 uses 4,600 in that time.
- On top of that, when Concorde started flying across the Atlantic in the ‘70s, the 1st-class cabins did have bigger seats than economy, but they still weren’t very comfortable.
- And that’s probably for the best. Aviation engineers have worked out ideal shapes of planes and the most efficient speed.
- The faster the plane is flying, the more the engines have to work. If the engines are constantly on full-blast, they don’t last as long and need to be replaced or repaired more often.
- After all these years of experimentation, aviation engineers have found the ideal speed of flight: 560 mph.
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