Planes flying eastward (including northeast and southeast) will fly at odd altitudes (i.e. 35,000 feet) and all other directions will fly at even altitudes.
How many miles can you see at 30000 feet?
at 30,000 feet: 211.3 miles (340 km) at 39,000 feet: 235 miles (391 km)
How far can a pilot see at 35000 feet?
at 30,000 feet: 211.3 miles (340 km) at 39,000 feet: 235 miles (391 km)
How far can a pilot see on a clear day?
Dust, water vapour and pollution in the air will rarely let you see more than 20 kilometres (12 miles) , even on a clear day. Often, the curvature of the Earth gets in the way first – eg at sea level, the horizon is only 4.8 kilometres (2.9 miles) away.
Can you see a plane at 40000 feet?
Modern airliners are usually built with the ability to function when flying over 40,000 feet. ... The service ceiling is the maximum density altitude an airliner can reach according to its design. However, travelers are more likely find themselves in the air at a cruising altitude of around 35,000 feet.
How high can jetliners fly?
Most commercial aircraft are approved to fly at a maximum of around 42,000 feet . This maximum is also known as a ‘service ceiling. ‘ For example, for the double-decker Airbus A380 ‘superjumbo’ quadjet, this ceiling is 43,000 feet. Meanwhile, for the Boeing 787-8 and -9 ‘Dreamliner,’ it is 43,100 feet.
How far can the human eye see a candle flame?
Detecting a candle flame: Researchers believe that without obstructions, a person with healthy but average vision could see a candle flame from as far as 1.6 miles . Without the Earth’s curve and from higher up: You might be able to identify objects from dozens, even hundreds, of miles away.
Do planes fly over Everest?
Tim Morgan, a commercial pilot writing for Quora says aircraft can fly above 40,000 feet, and hence it is possible to fly over Mount Everest which stands at 29,031.69 feet. However, typical flight routes do not travel above Mount Everest as the mountains create unforgiving weather.
How cold is the air at 35000 feet?
At 35,000 ft. (11,000 m), the typical altitude of a commercial jet, the air pressure drops to less than a quarter of its value at sea level, and the outside temperature drops below negative 60 degrees Fahrenheit (negative 51 degrees Celsius) , according to The Engineering Toolbox.
Why do planes do not fly over the Pacific?
The main reason flight don’t go over the Pacific Ocean is because curved routes are shorter than straight routes . Flat maps are confusing as the earth itself isn’t flat. As a result the straight routes don’t offer the shortest distance.
How high can most helicopters fly?
Turbine-engined helicopters can reach around 25,000 feet . But the maximum height at which a helicopter can hover is much lower – a high performance helicopter like the Agusta A109E can hover at 10,400 feet.
How bright is an airplane headlight?
Landing and taxi lights are extremely bright. They use 600 watt bulbs (automotive headlights are around 65 watts). Pilots and maintenance crews are very careful when using or testing these lights, especially at night. Turning on landing lights when ground personnel are nearby can cause severe eye damage.
How fast does a plane gain altitude?
Most jets climb at 250 knots up to 10,000 feet due to FAA regulations. Above 10,000 feet, 280 to 300 knots with a transition to Mach .
How Low Can planes fly over my house?
If you live in a sparsely populated area, an airplane is not allowed to fly any lower than 500 feet to any person, vessel, vehicle, or structure including your house.
Why do planes fly at 38000 feet?
Due to lower resistance at higher altitudes , commercial airplanes can keep moving forward with minimal fuel expenditure. Commercial airplanes typically fly between 32,000 feet and 38,000 feet, with the sweet spot being approximately 35,000 feet, which is popularly referred to as cruising altitude.
What happens if an airplane flies too high?
When the plane gets too high, there is insufficient oxygen to fuel the engines . “The air is less dense at altitude, so the engine can suck in less and less air per second as it goes higher and at some point the engine can no longer develop sufficient power to climb.” ...
