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Windy X
Windy X is the smoothest, the cheapest, the most intuitive and easy to use crosswind calculator you have ever seen. Install it, and you'll never look for another one.
For a student or a rookie pilot, Windy X is an excellent way to familiarize and get feel of on how the wind components change as the wind speed and direction varies.
If you're a more seasoned pilot, you might think you won't need a darn calculator to tell you what the wind is doing. Maybe so. On the other hand, you still might find it useful in some situations. For example, after a hairy landing that almost ruined your day, Windy X comes handy in checking how strong was that crosswind component anyway.
So how does the app work? Well, let's just say that everything works by touch. Just sweep the settings to values you want to. That's probably all the instruction you'll ever need. But if you want the details, here you have it:
The wind speed slider
- Just slide the rectangular bar with your finger to any wind speed you want. If you want, you can also tap the input box on the left side of the slider, and enter the wind speed by using a keypad.
- The wind speed units are shown only for a convenience. The wind components remain the same no matter what the selected unit system is. Take the picture above as an example. Changing the wind speed units to meters per second, doesn't change the actual wind component numbers. They remain the same, even though now the crosswind is 3 m/s and head/tailwind 4 m/s instead of 3 kts and 4 kts. You can change the wind speed units from the Settings page.
The wind direction dial
- Touch the arrow on the compass rose, hold your finger on the screen and move it. The arrow will follow your finger.
- The wind direction dial allows you change the direction in steps of one degree.
The runway dial
- Touch either end of the runway, hold you finger on the screen and move it. The runway will follow your finger.
- The runway dial allows you to change the runway direction in steps of ten (10) degrees.
Tips
- You don't have to keep your finger exactly on top of the arrow or on top of the runway all the time. As long as you start by tapping over the control and don't lift your finger from the screen after that, you can move your finger outside to compass rose to get more unobstructed view. The same rule applies all the controls; the wind speed slider, wind direction dial and the runway dial, they all work the same way.
- Keeping the vibration setting turned on makes it even easier to make accurate changes to wind direction and speed.
Not convinced?
So, you think this all is way too complicated? Maybe you don't want to listen ATIS and then input the information into a program? If so, we have a solution for you. Let us introduce Windy XD, a big brother of Windy X. It calculates the winds automatically for the most airports in the world. And not only that. It also decodes METARs and TAFs, shows you the airport frequencies, navaids, notams and much more. Go ahead and read more...
Still not convinced?
You're hopeless. Just joking of course. Jokes aside, we still have got something for you.
Crosswind Calculation - The Sixths Rules of Thumb
First calculate angle between runway and wind direction. For example, wind direction is 270 deg and runway is 230 deg – therefore angle = 40 deg
Then apply one of these rules:
- if angle = 10 deg then crosswind component = 1/6 wind strength
- if angle = 20 deg then crosswind component = 1/3 wind strength
- if angle = 30 deg then crosswind component = 1/2 wind strength
- if angle = 40 deg then crosswind component = 2/3 wind strength
- if angle = 50 deg then crosswind component = 5/6 wind strength
- if angle = 60+ deg then crosswind componnet = wind strength
So at 40 deg angle and 17 kts wind strength the crosswind component is approximately 11 kts.