- How many 777 crashed?
- How much does it cost to fill up a 747 with fuel?
- How fast does a 777 go on take off?
- How fast does a 747 cruise at?
- Why is it forbidden to fly over Disneyland?
- Why is it forbidden to fly over the Taj Mahal?
- Can a airplane stop in the air?
- How big is the fuel tank on a 747?
- How much fuel does it take for a 747 to take off?
- How cold is it at 35000 feet?
- Has a propeller plane broke the sound barrier?
- What is the slowest speed an airplane can fly?
- Why do aircraft fly at 35000 feet?
- What’s more dangerous takeoff or landing?
- How much does it cost to fly a 747 per hour?
- At what speed does a commercial airplane take off?
- Why do planes do not fly over the Pacific?
- Why do pilots say heavy?
How many 777 crashed?
As of February 2019, the 777 has been involved in 28 aviation accidents and incidents, including seven hull losses (five in-flight and two in ground incidents) resulting in 541 fatalities along with three hijackings..
How much does it cost to fill up a 747 with fuel?
Seats to fill A 747 can seat 380 to 560 people, depending on how an airline sets it up. A full one is a moneymaker. But an airline that can’t fill all the seats has to spread the cost of 63,000 gallons of jet fuel — roughly $200,000 — among fewer passengers. The jets also are too big for most markets.
How fast does a 777 go on take off?
The Boeing 777-200ER take off or rotate speed (VR) typically varies between 130 – 160 knots (roughly 120-180 mph) depending on the weight of the aircraft. At a typical take-off weight of around 230,000 kgs, the take off speed would be approximately 145 kts which is approximately 165 mph.
How fast does a 747 cruise at?
Question: What is the fastest airliner and how fast does it fly? — submitted by reader James Kriplean, Knoxville, Tenn. Answer: The Boeing 747 can cruise at 92% of the speed of sound, Mach . 92.
Why is it forbidden to fly over Disneyland?
The Anaheim parks and Walt Disney World received flight-restriction status after the Sept. 11, 2001, terrorist attacks. The 2003 law also prohibits aircraft from flying over sporting events in stadiums with a seating capacity of 30,000 or more. The ban includes any unmanned remote-controlled devices such as drones.
Why is it forbidden to fly over the Taj Mahal?
The Taj Mahal Although there’s no official no-fly zone over the ivory mausoleum, there is a mile-and-a-half radius above the historic site which security agencies consider to be a no-go when it comes to flying. This is because of security reasons – as well as risks to the building’s white marble from plane pollution.
Can a airplane stop in the air?
No a plane doesn’t stop in midair, planes need to keep moving forward to remain in the air (unless they are VTOL capable). What it can do is simply turn around or go over/under the obstruction. VTOL means vertical takeoff and landing. It essentially means they can hover in place like a helicopter.
How big is the fuel tank on a 747?
about 3,300 gallonsLike many large airliners, the 747 has fuel tanks in many places. The new 747-8, like its predecessor, the 747-400, carries about 3,300 gallons of fuel in the horizontal part of the tail.
How much fuel does it take for a 747 to take off?
The Boeing 747 burns approximately 10 to 11 tonnes of fuel an hour when in the cruise. This equates to roughly 1 gallon (approximately 4 litres) of fuel every second. It can carry up to 238,604 liters of fuel. It has a range of about 7,790 nautical miles.
How cold is it at 35000 feet?
How cold is it up there? The higher you get, the colder it gets, up until 40,000 feet. If the temperature at ground level was 20C, at 40,000 feet it would be -57C. At 35,000 feet the air temperature is about -54C.
Has a propeller plane broke the sound barrier?
Originally Answered: Has a propeller-driven aircraft ever broken the sound barrier? Yes. It was NASA’s XF-88 research aircraft, which had a specially designed prop to complete the task, and landed safely.
What is the slowest speed an airplane can fly?
Technically this is the so-called ‘stall speed’, where air passes over the wings fast enough to sustain altitude, and for small planes this can be less than 50km/h (31mph). But at such low speeds, the aircraft is easily destabilised, and could fail to leave the runway.
Why do aircraft fly at 35000 feet?
The “sweet spot” of flying is regarded as between 35,000 and 42,000 feet – too high and the oxygen becomes too sparse to fuel the engines, too low and the air resistance is greater. This optimum height is linked to the usual weight of a commercial jet – that is, heavier planes fly lower, and lighter higher.
What’s more dangerous takeoff or landing?
Boeing research shows that takeoff and landing are statistically more dangerous than any other part of a flight. 49% of all fatal accidents happen during the final descent and landing phases of the average flight, while 14% of all fatal accidents happen during takeoff and initial climb.
How much does it cost to fly a 747 per hour?
The most common is by referring to a generic “operating cost per flight hour” figure. Most of the (extremely) generic references I’ve seen using that metric for a Boeing 747–400 are in the US$25,000 per hour range.
At what speed does a commercial airplane take off?
Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph). Light aircraft, such as a Cessna 150, take off at around 100 km/h (54 kn; 62 mph).
Why do planes do not fly over the Pacific?
The primary reason airplanes don’t fly over the Pacific Ocean is because curved routes are shorter than straight routes. … Whether a commercial airline is flying from the United States to Asia or elsewhere, it will have the fastest and most fuel-efficient flight by performing a curved rout.
Why do pilots say heavy?
The word “heavy” means a larger aircraft type, with a Maximum Takeoff Weight of 160 tonnes or more. These aircraft create wake turbulence from their wings and require extra separation between following aircraft, and the use of “heavy” reminds other pilots of that fact.