Are there any variations or notable sensations when you break the sound barrier in a plane?
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Apparently not in modern planes designed to do so. But after WWII there were more than a few people killed in old prop planes doing high speed dives and also people killed in early jets. Elevator control loss was the big issue and once in a dive you couldn’t get out. Soon after they got these early design issues figured out.
Apparently not in modern planes designed to do so. But after WWII there were more than a few people killed in old prop planes doing high speed dives and also people killed in early jets. Elevator control loss was the big issue and once in a dive you couldn’t get out. Soon after they got these early design issues figured out.
Basically at slower speeds you are catching up with the sound vibrations created by the surfaces like the wings, that sound is vibration energy so will shake the plane, modern planes are designed to create less sound vibrations so the impact is less but still there. https://youtu.be/uO_n6LY2pVA
Basically at slower speeds you are catching up with the sound vibrations created by the surfaces like the wings, that sound is vibration energy so will shake the plane, modern planes are designed to create less sound vibrations so the impact is less but still there. https://youtu.be/uO_n6LY2pVA
Apparently not in modern planes designed to do so. But after WWII there were more than a few people killed in old prop planes doing high speed dives and also people killed in early jets. Elevator control loss was the big issue and once in a dive you couldn’t get out. Soon after they got these early design issues figured out.
If you have a few minutes to spare, this video shows what’s happening in the cockpit when breaking the sound barrier:
If you have a few minutes to spare, this video shows what’s happening in the cockpit when breaking the sound barrier:
Basically at slower speeds you are catching up with the sound vibrations created by the surfaces like the wings, that sound is vibration energy so will shake the plane, modern planes are designed to create less sound vibrations so the impact is less but still there. https://youtu.be/uO_n6LY2pVA
If you have a few minutes to spare, this video shows what’s happening in the cockpit when breaking the sound barrier:
Yes, around Mach 0.3 you must start taking compressibility effects into account to make accurate calculations and for your instrumentation to give you correct information such as airspeed.
As you approach Mach 1(local speed of sound), even though your airspeed is less than the speed of sound, the flow around your wing may accelerate to the speed of sound. Where the flow is Mach 1 a Shockwave will form and the airspeed after the Shockwave will be significantly slower and the air pressure higher leading to major instability issues. So wings must use supercritical airfoils. Drag calculations must also account for wave drag
If you’re airplane is intended to travel faster than the speed of sound, leading edges start to get pointy and thin. Their is a huge change in the airflow following that must be accounted for.
This field of study begins with a course in Gas Dynamics.
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