Skip to main content

𝐒𝐨𝐧𝐢𝐜 𝐁𝐨𝐨𝐦



🛫A sonic boom is the sound associated with the shock waves created whenever an object travelling through the air travels faster than the speed of sound.

🛫Sonic booms generate enormous amounts of sound energy, sounding similar to an explosion or a thunderclap to the human ear.

🛫Sound travels in the form of wave in all directions.

🛫Imagine that a stationary aircraft has its engine ON , so the sound travels like sphere around the aircraft with each outer lining, representing a wave.

🛫When aircraft moves, the waves ahead of aircraft get compressed, but they do not averlap each other below the speed of sound.

🛫When it travels faster than speed of sound, the aircraft travels faster than these waves and the waves combine to form a single high energy wave called Sonic boom.

🛫This forms cone behind the aircraft called "Mach Cone".

🛫We can't hear the sound when aircraft passes over is , we can only hear it when the base of this cone reaches to us.

🛫We sometime can see a cloud form behind the aircraft, this is because of rapid change in air pressure which causes the drop in temperature and water vapor to condense and a cloud forms.

🛫a critical speed known as Mach 1, and is approximately 1,235 km/h (767 mph) at sea level and 20 °C (68 °F).

➡️Subscribe us for more aircraft knowledge and aircraft fact⬅️

➡️Do Share with your Friends⬅️
Labels:

Comments

Post a Comment

Popular posts from this blog

𝐓𝐲𝐩𝐞𝐬 𝐨𝐟 𝐂𝐨𝐦𝐛𝐮𝐬𝐭𝐢𝐨𝐧 𝐂𝐡𝐚𝐦𝐛𝐞𝐫𝐬

🛩️A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, combustion chamber is fed high pressure air by the compression system. 🛩️The combustor then heats this air at constant pressure. After heating, air passes from the combustor through the nozzle guide vanes to the turbine. In the case of a ramjet or scramjet engines, the air is directly fed to the nozzle. 𝐀𝐧𝐧𝐮𝐥𝐚𝐫 𝐓𝐲𝐩𝐞 ✈️The most commonly used type of combustor is the fully annular combustor. Annular combustors do away with the separate combustion zones and simply have a continuous liner and casing in a ring. There are many advantages to annular combustors, including more uniform combustion, shorter size, lighter, and less surface area. Annular combustors tend to have very uniform exit temperatures. They also have the lowest pressure drop of the three...
Post a Comment
Read more

𝐖𝐞𝐭-𝐒𝐮𝐦𝐩 𝐎𝐢𝐥 𝐒𝐲𝐬𝐭𝐞𝐦

Wet Sump Oil System ✳️The engine oil system performs several important functions: 🛩️Lubrication of the engine’s moving parts . 🛩️Cooling of the engine by reducing friction . 🛩️Removing heat from the cylinders . 🛩️Carrying away contaminants . 🛩️Providing a seal between the cylinder walls and pistons. ➡️Subscribe us for more aircraft knowledge and aircraft fact⬅️ ➡️Do Share with your Friends⬅️
Post a Comment
Read more

𝐀𝐏𝐔 𝐅𝐢𝐫𝐞 𝐃𝐞𝐭𝐞𝐜𝐭𝐢𝐨𝐧 & 𝐄𝐱𝐭𝐢𝐧𝐠𝐮𝐢𝐬𝐡𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦

APU Fire Detection & Extinguishing System 🛩️The APU fire protection system is similar in design to engine fire protection systems, but there are some differences. The APU is often operated with no personnel in the flight deck and; the APU fire protection system can operate in an unattended mode on the ground with the engines not running. 🛩️If there is an APU fire in the unattended mode, the fire extinguisher discharges automatically. The APU operates in the attended mode when at least one engine is running. If there is an APU fire in this mode, the crew discharges the bottle manually. Fire switches are located on the cargo fire/ engine control panel and the service and APU shutdown panel located outside the airplane on the nose landing gear. 🛩️If there is an APU fire, the APU fire detection system gives fire warnings and automatically stops the APU. The APU fire warning light comes on to identify the correct fire switch to use to extinguish the fire. The fire switch sole...
Post a Comment
Read more