The hump on the Boeing 747 is an iconic design feature that affects not only the look of the plane but also its performance in the air. The hump houses the upper deck of the plane, which is used mainly for passenger seating and other features, such as a bar or lounge.
This upper deck also adds to the weight of the plane, so Boeing designed the hump shape to help disperse the load more effectively and improve the plane’s aerodynamic performance. Additionally, the upper deck creates additional headroom for passengers above the main cabin, providing them with more comfort and space.
In addition, the hump also houses a second pair of wings known as the supercritical wings. The wings are designed in such a way to reduce drag, increase lift and make the 747 more fuel efficient. In summary, the hump on the Boeing 747 is an integral feature of the plane, not only for its aesthetic properties but for its performance as well.
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What is the hump on top of airplanes?
The hump on the top of an airplane is known as the fuselage. It is a large, hollow body part of an aircraft that includes the windows, seats, and walls. The fuselage is also responsible for connecting all of the major parts of an airplane, such as the wings and tail.
The shape of the fuselage is what helps the aircraft produce aerodynamic lift as it moves through the air. It is designed to be streamlined, reducing drag and allowing the airplane to fly at higher speeds.
The hump on top of airplanes is designed to provide structural integrity to the aircraft and give passengers more comfort. Additionally, it ensures that the airplane has an aerodynamic profile and can be steered correctly.
Why do planes have a hump?
The main reason why planes have a hump is because of the design of their engines. Most planes are powered by jet engines, which typically sit above the wings on the top of the fuselage. This raised, curved shape, often referred to as a hump, is necessary in order to contain and secure the engines, and direct the exhaust downwards away from the plane.
In addition to allowing for the placement of the engines, the hump also serves an aerodynamic purpose: it helps to create a laminar flow of air, which increases the efficiency of the aircraft by reducing drag.
This means that the plane can fly faster and further without consuming as much energy from the engine. In some cases, the hump also gives additional lift, allowing the plane to take off quicker and more efficiently.
Overall, the hump on a plane is an essential part of its design which helps it to perform better and fly more efficiently.
Why Boeing 747 have a hump in the front?
The Boeing 747 has a distinctive hump in the front simply because of its design. The hump is actually the nose of the aircraft, which is tapered towards the front to incorporate an upper deck while providing adequate space in the main deck area.
This design feature allows for a maximum seating capacity of over 340 passengers, which sets the Boeing 747 apart from other large commercial aircraft. Additionally, the humps shape reduces drag as the air passes over the aircraft, leading to better efficiency for the 747.
This design feature has become an iconic part of the classic look of the 747, which has gone on to become one of the most famous and recognizable aircrafts in the history of aviation.
Why can’t planes fly straight?
Planes cannot fly straight due to a variety of factors, most of which involve forces caused by the generation of aerodynamic lift. Most notably, the production of lift alters the trajectory of the aircraft and causes it to turn in one direction or another.
As the aircraft rises and starts to turn, the lift produced by the wings causes the nose of the aircraft to move in the direction of the turn. This is known as the ‘rolling moment’. In addition, the force of the lift produced by one wing is often different from the force of the lift produced by the other wing.
As the lift from one wing becomes greater than the other, the aircraft will start to yaw or turn in the direction of the greater lift-producing wing. This is known as ‘yawing moment’. These two forces combine to cause the aircraft to bank in the direction of the turn and, ultimately, fly in a curved rather than a straight trajectory.
In addition to these aerodynamic forces, turbulent air, the Coriolis effect, and wind can also contribute to an aircraft’s inability to fly straight.
Why do plane tires don’t explode on landing?
Although airplane tires are built to withstand enormous amounts of pressure when landing, they don’t explode because landing is a carefully choreographed process. Airport workers and pilots work together to ensure that the tires don’t exceed the manufacturer’s specified maximum pressure rating.
During the pre-flight phase, technicians check the pressure of the tires and make sure that the tires are within the accepted tolerance range.
During the landing process, pilots adjust the rate of descent and speed to prevent the tires from hitting the ground too hard. This keeps the forces on the tires to within acceptable levels, preventing them from becoming overstressed and exploding.
In modern aircraft, flight computers calculate and adjust accordingly, based on current weather conditions, the type of runway, and other factors.
The design of the tires themselves also plays a big role in avoiding tire explosions. They are engineered to be strong and durable, composed of heavy-duty rubber and reinforced with steel and nylon, so that they can effectively absorb the landing forces and prevent the tires from over-stressing.
Finally, an aircraft’s braking system helps to slow the plane down, reducing the forces on the tires and helping to ensure that the tires remain within their expected pressure levels. This is one of the main reasons why airplanes don’t simply skid off the runway into a ditch, but are instead able to come to a controlled, safe stop.
Why is the back of the plane more bumpy?
The back of the plane is typically more bumpy because it is located further away from the point at which the engine pulls air into the plane. This air has already been disturbed as the plane moves through it, leading to more rough turbulence.
The more turbulent the air, the greater the range of bumps, so areas at the back of the plane tend to experience more jarring turbulence. Additionally, the turbulence following an aircraft is more intense than the swell in the air it creates, and this is concentrated mostly at the back of the plane.
This can lead to the back of the plane experiencing significantly more turbulence than the front of the plane.
How many 747 crashed?
As of 2020, there have been a total of 96 Boeing 747 crashes since the first one in 1971. Of these, 52 occurred due to various mechanical issues, 17 due to pilot errors, 15 due to a combination of both, 11 due to terrorist attacks, and one due to a combination of mechanical and other issues.
As is the case with any aircraft, there have been a number of fatal crashes, the most notorious of which was the TWA Flight 800 tragedy in 1996 where 230 people were killed. Safety improvements have been made over the years, and the 747 has had a relatively good overall safety record—several aircraft have flown for more than 40 years without any major incidents or fatalities.
What aircraft has had the most crashes?
The aircraft that has had the most crashes is the de Havilland DH.82 Tiger Moth. This iconic biplane first entered service in 1932 and was used extensively as a trainer throughout World War II and beyond.
Unfortunately, the aircraft was notoriously difficult to fly and required a significant amount of effort to properly control. As a result, Tiger Moths were involved in a number of accidents, resulting in thousands of deaths throughout its use.
It was eventually retired from service in 1959 and replaced by safer, more advanced aircraft.
When was the last 747 plane crash?
The last 747 plane crash occurred on February 21, 2019 in Bishkek, Kyrgyzstan. The Turkish Airlines flight aborted its takeoff due to severe weather and crashed 1,500 feet from the runway, killing all 39 people onboard.
The plane was a Boeing 747-400 model and had 93 tons of fuel on board, which resulted in an extremely large and devastating fire. The cause of the crash is currently still officially unknown, although investigators believe it was likely due to either the weather conditions or pilot error.
What is the safest plane in the world?
The safest plane in the world is the Airbus A320-family of aircraft, which has been in operation since 1988. This family of aircraft has been dubbed the “workhorse” of the skies, due to its reliable performance and comfort.
The A320 family has been widely adopted as the standard airliner model among many airlines and is used around the globe. Their safety record also speaks for itself; they have an impressive safety record and have not had any fatal accidents since its first commercial flight in 1988.
The model also has considerable experience in maintenance and repair, due to its popularity and familiarity with the airline industry. It is regularly given a “Very Good” to “Excellent” rating for its safety.
The entire family of aircraft also has a number of features that increase its safety. These features include the fly-by-wire (FBW) control system with side-stick controllers, its advanced computer systems that monitor and manage all aspects of the aircraft’s operation, and its sophisticated avionics, that allow it to fly in virtually any weather conditions.
It is also equipped with anti-collision radar and scanners, to detect and avoid other aircraft and obstacles. Additionally, advanced weather systems are often installed on this aircraft family, providing pilots with advanced warning systems of any potential weather issues that could lead to turbulence or dangerous conditions.
Overall, the Airbus A320 family of aircraft is considered to be the safest in the world, due to its impressive record of no fatal accidents since 1988, its complex computerized systems, and its sophisticated avionics.
What is the oldest 747 still flying?
The oldest Boeing 747 still flying is a 747-400, which was originally delivered to China Airlines on November 17, 1989, and is currently operated by Air Bridge Cargo as of 2021. It is the oldest 747-400 in existence and has been in service ever since it was first delivered, having accrued more than 23,000 flying hours in that time.
The airplane was briefly retired in 2012 and ended up in Malta, only to be re-activated the following year and returned to service. It has since become a workhorse for the airline, and is one of their most heavily relied upon aircraft for transporting cargo.
Are there any Boeing 747 still flying?
Yes, there are still Boeing 747 aircrafts still flying around the world. With a history that spans multiple decades, the 747 first debuted in commercial service with launch customer Pan American World Airways in 1970.
Since entering service with Pan Am, over 1,500 of the iconic 747 have been produced, making it the second longest produced commercial aircraft after the Boeing 707. In its 44 years of service, the 747 has seen multiple variants, the most recent being the Boeing 747-8.
Additionally, the 747 continues to be used in commercial service by a variety of airlines and cargo operators all around the world. Notable airlines operating the 747 include Lufthansa, Korean Air, Air China, British Airways, Asiana Airlines and Etihad Airways.
Although many of the oldest 747 have been retired due to technological advancements, a wide variety of 747, ranging from the -100 to the -800, still fly throughout the world.
Can I refuse to fly on a Boeing 737 MAX?
Yes, you can refuse to fly on a Boeing 737 MAX. In the wake of two fatal crashes of the aircraft, many airlines around the world have grounded the plane and halted flights on it. The Federal Aviation Administration (FAA) has also declared that no U.S. carrier may operate the 737 MAX 8 or 9 until further notice.
Passengers should check with their airline to confirm the type of aircraft they will be flying on before they book their flight. If they find they are booking a flight on a 737 MAX 8 or 9, they can contact the airline to request alternative arrangements.
Ultimately, if a passenger is not comfortable with the prospect of flying on the 737 MAX, they have the right to refuse the flight.
Has an Airbus ever crashed?
Yes, there have been several serious incidents and crashes involving Airbus aircraft. The most notable crash is the Air France Flight 447 crash in June 2009, when an Airbus A330-203 carrying 228 people from Rio de Janeiro to Paris lost control and crashed into the Atlantic Ocean.
There were no survivors.
In May 2018, an Indonesian Lion Air aircraft, an Airbus A330-900 MAX 8, crashed into the Java Sea shortly after taking off from Jakarta. 189 people were on board and only two bodies have been recovered so far.
Other notable Airbus accidents include the TACA Flight 390 crash in May of 2008, in which a Airbus A320-233 on a domestic flight from Tegucigalpa to San Salvador crashed on final approach due to a failure of the left engine’s thrust reverser, killing all five crew members and three passengers.
Additionally, the Air China Flight 129 crash in April 2002, involved an Airbus A300-604R, crashing into a hillside near the airport in Busan, South Korea, killing 128 of the 166 passengers and crew on board.
The cause of the crash was primarily attributed to the pilots inappropriately handling the aircraft as it descended.
In light of these events, Airbus has made both hardware and software improvements to try and avoid similar accidents occurring in the future.
