It’s calibrated to operate using standard atmospheric conditions. What the pitot-static system doesn’t know is the density of the air around you. Your aircraft’s pitot-static system uses the difference between the surrounding static air pressure and the total pressure experienced by the aircraft to determine the dynamic pressure, which gives you the airspeed. This reading is known as the ASIR or Airspeed Indicator Reading. General aviation aircraft use the pitot-static system to determine the speed of the aircraft relative to the air around it. Some of these adjustments aren’t usually relevant for general aviation aircraft, for example, Equivalent Airspeed which only really matters at speeds above 300 knots. What’s Your Airspeed?Īirspeed is affected by a lot of factors, and the pilot needs to correct for each factor to end up with the final True Airspeed that can be used to figure out the ground speed.Įven though they’re all just ways to describe how fast you’re flying, there are multiple types of airspeeds that are defined according to the factor that’s being taken into account. The numerical difference between airspeed and ground speed isn’t constant it varies, and it depends on a number of factors that we’ll get into below. The airspeed is the speed at which the aircraft is traveling through the air around it, and it’s not the same as your ground speed. The speed indicator on your aircraft does not give you the ground speed, it tells you the airspeed. Well, the speed that your car speedometer shows is the distance on the ground that the car is traveling per hour. Why isn’t it that simple for an aircraft? If you know how fast your car is going, all you need to do is divide the distance remaining to your destination by your speed, and voilà, you now know how long it’ll take you to get there! It’s fairly straightforward to figure out how long it’ll take you to get to your destination when you’re driving a car. In order to find out how long it will take your aircraft to get to where you’re going, you will need to convert your airspeed into ground speed and use that to figure out the time duration. Fancy!īut when you’re in an old-school general aviation airplane, even the pilot needs to do a bit of work to figure out what time you’ll get home. We will help you claim it.If you’re flying commercial, even the passengers might have an IFE screen showing the aircraft’s current location and the estimated arrival time. In case you have had delayed or cancelled flights in the past 3 years, check your flight delay compensation. It is calculated based on the distance of the flight as well as the flight time.Ĭheck your passenger rights to know what flight delay or cancellation compensation you are eligible for. If your flight is delayed, you might be entitled to compensation. Why is it important to know the distance and the duration of your flight? The benefits of knowing your flight distance There are many similar tools online which calculate the flight distance and the required flight time for any location or airport in the world that you choose. You can use a flight time calculator app or website such as Travel Math that will instantly give you the flight duration once you enter the points of departure and arrival. The flight duration depends on many factors, such as:įor example, a headwind will increase the flight time, while a tailwind will reduce it. This is the total time an aircraft is in flight, from the point of takeoff to landing, including the time for taxiing to and from the runway.
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