What does the CdA graph show?
CdA (Drag Area) is one of the main and most useful graphs to analyze your ride to see how aero you were at different moments. The CdA is a result of the frontal area (size - A) and how "slippy" you are (drag coefficient - Cd). The displayed is filtered, like the live display on your iOS app works on a 60s rolling average. So, your CdA on this chart may vary from the average CdA shown on the "Notio CdA Analysis" chart.
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What does the Air density graph show?
This graph displays the Air density in kg per meter cubed (kg/m³). The changes during a ride are usually caused by a change in temperature and will also depend on the altitude. Generally, it will be closer to 1.15 kg/m³ in the summer and closer to ...
What does the Acceleration graph show?
Measured in meters per second squared (m/s²), it shows the rate in which you change velocity. All positive numbers show acceleration and the negative numbers show deceleration. When analyzing a ride, you should look for a section that doesn't have ...
What is the Calibration factor?
The calibration factor results from the calibration of the Notio so that the pitot tube measures the wind as accurately as possible. The calibration factor is used in the calculation of the CdA and the wind. The way the wind comes into contact with ...
What do the CdA Scale Settings do?
CdA scale settings adjust the y-axis on the Notio CdA Analysis chart. Offset moves the scale up and down so that you can centre the data that is relevant to your activity. Range simply adjusts the minimum and maximum of the y-axis around the offset ...
Find a calibration ride out and back segments
To have a more accurate CdA, the Notio device needs to be calibrated as a power meter would. But it is more tedious because we need to perform a calibration ride which is composed of an out segment and a back segment both with the same length. The ...