How far can you see a plane at 30000 feet?
It’s somewhere around 50 to 60 kilometers in normal weather conditions. this answer is very relative and its important to notice that it depends on the geographical and the weather conditions. The plane itself is only visible from somewhere around 10 to 15 km. How far can I see from a plane at 30,000 feet?
How high can a pilot see the horizon from an airplane?
350 to 400 miles from nearly 120,000 (22.5 Miles) feet up. At that altitude the horizon was in the hundreds of miles depending on the atmospheric conditions. Of course if the moon or nearby planets are visible out of his aircraft then he is pearing hundreds of thousands of miles to several dozen million miles.
How high can a plane fly?
The "sweet spot" of flying is regarded as between 35,000 and 42,000 feet (the airline industry still uses feet and inches as its standard measurements) – too high and the oxygen becomes too sparse to fuel the engines, too low and the air resistance is greater.
How far can you see from the window of an airplane?
Originally Answered: How far can you see from an airplane window? There is a somewhat complex formula to figure out how far you can see from a given altitude. It's based on several factors, including the observer's height or altitude and the radius of the Earth (3,963 miles). At 35,000 feet, you would be able to see about 230 miles
How far can you see at 20 000 feet?
One passenger, 20,000 feet above Brazil, insisted that she could see the coast of Africa, 1,822 miles away. To set such passengers straight (and help military pilots) Pan Am's clipper captains have worked up a handy "vision range" table. At sea level the curvature of the earth limits the range of vision to 2.9 miles.
How far can the human eye see a plane?
At a cruising altitude of 39,000 feet (12,000 meters; typical for a cross-country flight) the horizon is 391 km (235 miles) away! That's a surprisingly long way; in general that means you could be looking across one or more states in the US.
Can you hear plane at 35000 feet from the ground?
I think the answer is "yes" regardless, but ground elevation might make a difference. I often hear B747 and A380 aircraft flying over at those high flight levels, but an elevation of 3000 or 5000 ft is different than at sea level.
How far away can you see airplane lights?
They are often called “strobes” and can be seen for miles. It's easy to spot the white flashing lights on airplanes flying high overhead at night. Aircraft at 40,000 feet are easily seen from the ground thanks to anti-collision lights. In-flight, pilots can see the lights 20 miles away.
Why do planes do not fly over the Pacific?
Flying over the Pacific Ocean is avoided by most airlines for most flights because it usually doesn't make sense to fly over it when shorter and safer routes exist. The Pacific Ocean is also more remote and less safe than the Indian and Atlantic Oceans to fly over, resulting in a higher chance of a plane crashing.
How far can you see from 40000 ft?
At 35,000 Feet: You can see 228 miles from a height of 35,000 feet. At 40,000 Feet: You can see 244 miles from a height of 40,000 feet.
Can you breathe at 35000 feet?
Whether you are flying aboard a small Cessna or a jumbo-sized Airbus A380, you can breathe freely inside the cabin without wearing a mask or respirator. Even at a cruising altitude of 35,000 feet, you shouldn't have trouble breathing.
Is there oxygen at 35000 feet?
Natural availability of oxygen at 35,000 feet In other words, there's ample air at 35,000 feet, and there is sufficient oxygen in it. In fact, there's even a reasonable amount of air at the altitude where the International Space Station operates!
How cold is it at 40000 feet?
Between 9,000 and 12,000 metres (30,000 and 40,000 feet), the cruising altitude of most jet aircraft, air temperatures range from −40 to −70 °F (−40 to −57 °C). Modern aircraft have sealed cabins and heaters to protect pilots and passengers from wind blasts and cold air.
Do planes fly lower at night?
Planes don't fly lower at night; they have the same cruising altitudes as to what they fly at during the day. There is no safety reason for aircraft to fly lower at night, it is perfectly safe for them to do so. Large commercial airliners typically fly at between 30,000 and 40,000 feet, regardless of the time of day.
Why do pilots use red lights at night?
Once in the aircraft, pilots will adjust the cockpit lighting to the minimum intensity needed, they will use red lights in the cockpit as white light destroys night vision and the pilots will avoid, where possible, looking at the bright runway and airport lights when taxiing and taking off.
Can pilots see at night?
The short answer is no. If you've ever gazed out your window into the inky blackness during a nighttime flight, you've probably wondered how the pilots are able to see anything from the cockpit.
How far away can an aircraft be from an ATC tower?
So, with an aircraft at 36,000 feet and the ATC radio tower at 100 feet, communication will be possible up to 250 nautical miles away. However, this is the theoretical optimum and will be much less in practice due to transmitter power and receiver inefficiencies.
How far above ground is a sealed tube?
When you’re in a sealed, pressurized tube five miles above the ground, being able to communicate effectively is essential. In the early days of aviation, flags and light signals were used before designers were able to fit basic radio equipment into aircraft. Modern aircraft now have an array of communication devices from ...
How many VHF radios does a 787 have?
Not only does this give us backups in case of a failure, but it also allows us to use to a number of different frequencies at the same time. On the 787, the three VHF radios are identified as “VHF left,” “VHF center” and “VHF right.”.
What happens to the distance between a sender and receiver?
If both the sender and the receiver are on the ground, the distance will be relatively small. If both stations are in the air, the distance the signals can travel is much further. When communicating between a ground-based station like Air Traffic Control and an aircraft, the distance is somewhere in the middle.
Why are the D, E and F layers more active?
During the day, energy from the sun causes the D, E and F layers to become heavily ionized, making the layer more active. At night, with less energy from the sun, only the E and F layers are active. As a result, lower frequencies are better quality during the night and higher frequencies are better during the day.
Does VHF work with line of sight?
However, as VHF only works with “line of sight,” satellites have enabled us to communicate almost as effectively when in remotes areas via CPDLC and SATCOM. The use of text-based messages also reduces the risk of misunderstandings between ATC and pilots, leading to an increase in in-flight safety.
What happens if an airplane is at 35,000 feet?
Should something bad happen to an aircraft at 35,000 feet, like losing power in its engines, the pilot has much longer to deal with the situation, than if the aircraft was just at 10,000 feet. This may sound silly, but remember that planes can still land safely even if both engines fail – so having more time to get your ducks in a row before attempting such a manoeuvre could save lives.
How high can a jet plane fly?
The record altitude for a jet plane is 123,520 feet, set by Alexandr Fedotov in 1997 flying a military Soviet MiG-25M.
Why is the air higher?
One of the central reasons behind aircraft altitude is that, as the air gets thinner with every foot climbed, planes can travel more easily and therefore move faster and burn less fuel, saving money. The "sweet spot" of flying is regarded as between 35,000 and 42,000 feet ...
What is the lowest safe altitude?
Photo: iStock. Because there are laws that govern just that. Known as the lowest safe altitude (LSALT), the value has been applied by aviation bodies around the world, including Australia's Civil Aviation Safety Authority (CASA), the British Civil Aviation Authority (CAA) and the US Federal Aviation Administration.
How high should a commercial jet be?
It would actually be most efficient to be forever climbing, rather than plateau when reaching say, 35,000 feet, cruising altitude, as the weight of the aircraft decreases due to fuel usage and the air thins.
What is the temperature at 35,000 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.
How high above the ground can an aircraft fly?
Aircraft must not fly less than 1000 feet above the "highest fixed object" beneath them and pilots must make sure that they are high enough to clear the congested area below in the event of engine failure. Obviously, these don't apply to take-off and landing when aircraft are in controlled flight paths.
