What is the surface tension of jet fuel?
The surface tension of jet fuel typically ranges from 20 to 30 mN/m (millinewtons per meter). This property is important for fuel atomization and combustion efficiency in jet engines.
How does the wing shape on an airplane affect its ability to hold weight?
The wing shape of an airplane, particularly its airfoil profile, affects its ability to generate lift. A curved or cambered wing shape helps generate more lift, allowing the airplane to carry more weight. Additionally, the wing design influences the distribution and efficiency of lift across the wingspan.
What is the lift off speed of a Boeing 747?
The lift off speed is dependant upon the weight of the aircraft. The heavier the aircraft the higher the speed. At maximum take off weight of 875,000 lbs (396,890 kgs) Vr (rotation speed) will be about 175 knots and V2 about 185 knots.
A Boeing 737 works by utilizing jet engines to produce thrust, which propels the aircraft forward. The engines take in air, compress it, mix it with fuel, and ignite it to generate the power needed for flight. The wings generate lift as the aircraft moves forward, allowing it to take off, cruise, and land.
Sound made by things in words?
Onomatopoeia is the term used to describe words that mimic the sounds they represent, such as "buzz," "bang," or "meow." It adds a sensory element to writing, allowing readers to better visualize and experience the sounds being described.
A Boeing 747 typically has a length of around 231 feet (70 meters) and a wingspan of about 211 feet (64 meters). It can carry up to 524 passengers in a typical configuration.
What goes 700 MPH at ground level?
If you are talking plane or car, car is the SSC THRUST. No plane has gone that speed at ground level, so i wouldn't know.
A Boeing 747 at 100 m distance can have a sound pressure level of L = 130 dBSPL.
Never forget to tell the distance of the measuring microphone from the sound source, because the closer you are the louder it is.
The sound pressure level decreases by 6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value.
The sound pressure decreases inversely as the distance increases with 1/r from the sound source.
What is the relation between net thrust and gross thrust in a ramjet engine?
Net thrust in a ramjet engine is the actual useful thrust generated for propulsion, while gross thrust is the total thrust including the contributions from ram pressure. The net thrust is the difference between the gross thrust and the drag of the engine itself. The net thrust determines the actual propulsion force available for moving the aircraft forward.
How is the speed of an aircraft measured?
The speed of an aircraft is measured using an airspeed indicator, which measures the speed at which the aircraft is moving through the air. Groundspeed, on the other hand, is the speed at which the aircraft is moving over the ground and is measured using GPS technology.
What is the take off speed of an Boeing 747?
The takeoff speed of a Boeing 747 can vary depending on factors such as weight, runway length, and weather conditions. However, generally speaking, the takeoff speed of a Boeing 747 is around 180-200 knots (207-230 mph).
How much fuel does a 747 use to taxi?
A 747 uses about 24 gallons of fuel per hour while taxiing. The actual amount of fuel used during taxiing can vary depending on the size of the airport and other factors such as traffic congestion and taxiing distance.
What is fastest recorded speed of an earthquake?
Seismic wave velocity is mostly dependent on the material they travel through (things like magnitude do not affect wave velocity). As the earth is relatively uniform, there is virtually no deviation in earthquake 'speed'. (Wave velocity will differ depending on phase, depth, etc. - but that's different.)
Jet fuel comes in two basic types, Jet A and Jet B. Jet A-1 is the most common in use and there are other military spec fuels
Both are kerosene and paraffin oil based fuels. These are very similar to diesel fuel, stove oil or lamp oil.
Jet B is the more flammable of the two as it is made of hydrocarbons in the naptha/kerosene range for better cold weather service.
In either case the flammability is similar to or less than than gasoline, for Jet A it can be compared to diesel oil.
A third similar fuel is Avgas (Aviation Gasoline) which is a high octane gasoline similar to motor fuel.It is more flammable than gasoline or either of the jet fuels.
What is the fastest passenger plane in the world?
At the moment it is the Boeing 747-473 (747-400) operated by Air India. However, Air India placed orders for more than 50 aircraft in 2006 (most have been delivered) including the Boeing 787. The Boeing 787 Dreamliner, when it arrives in Air India in late December 2011, will be the fastest passenger plane in India.
Why does an an aircraft require less runway length for take off during winter?
Airplanes fly by virtue of two basic ideas: kite effect and Bernoulli's principle. With the thrust of the engine pushing the craft forward, air moving over the upper curved surface of the wing has less pressure than the air moving along under the wing. Higher air pressure on the bottom of the wing and lower air pressure on the top creates lift. Thanks, Bernoulli. When the wing is tilted up a little bit with the craft moving forward, air pushes against the bottom of a wing like air pushes against the bottom surface of a kite, and this forces the craft up. Kite effect. Now to the question of take offs in winter. The key is that the air is colder in winter and is more dense. This means that it provides more lift than air that is warmer and less dense. All other conditions being equal, winter air is better for takeoffs than summer air. There's more effect on the control surfaces, too! Sweet! Flying in summer when it's really hot is like flying at higher altitudes because as we all know, the air is thinner up there! This is a question that speaks to the physical effect we call air density. Wikipedia has a nice article, and a link is provided.
What is the top speed of a Boeing 787?
The Boeing 787 has a cruising speed of approximately 560 mph (900 km/h) and a maximum speed of around 590 mph (950 km/h).
What is the average mass of a passenger jet?
Well, since the weight of planes varies so much, you cannot really put and "average" on the mass of an airframe. Some weigh 3000lbs, some weigh 1,000,000lbs. Also it changes everyday with temperature (true, believe it or not), passenger weight and other factors.
What is the coefficient of drag of a Boeing 747?
The coefficient of drag of a Boeing 747 can vary depending on its configuration and flight conditions, but it generally ranges from 0.022 to 0.025.
How to weight a Boeing 747-400?
To weigh a Boeing 747-400, the aircraft is typically placed on specialized scales at an airport or maintenance facility. The weight of the aircraft is then measured by the scales beneath each of its landing gear. The total weight is calculated by summing the weights measured at each point.
How much does the Boeing 747 weight in kg?
The weight of a Boeing 747 can vary depending on its model and configuration, but it typically ranges from 160,000 kg to 440,000 kg when empty.
What is the speed of a Boeing 747?
A Boeing 747 typically travels at a cruising speed of around 550-600 miles per hour (885-965 kilometers per hour). This speed can vary depending on factors such as altitude, weather conditions, and flight distance.
How long does it take to refuel an 777 airplane?
If we aks about the Boeing 777-200 LR, which have fuel tanks, that can carry 181,300L of fuel, and a avrage refuel pump for planes, which is able to pump about 2000 to 2400 liters per minute we can easily calculate, that it takes about 75.5416666667 to 90.65 minutes to fully refuel Boeing 777-200 from an empty to full tank.
A Boeing 747 typically cruises at a speed of around 550-600 miles per hour (880-960 kilometers per hour).
First, convert the speed from km/h to m/s: 300 km/h = 300 * (1000 m/3600 s) = 83.33 m/s. Then, calculate the acceleration using the formula: acceleration = change in velocity / time = (83.33 m/s - 0) / 25 s = 3.33 m/s^2.