![]() ![]() With the card mounted with its CG below the pivot. Please Log in or Create an account to join the conversation. A second way to tilt the compass card out the horizontal plane is to accelerate or decelerate the airplane. The amount depends on the latitude and other factors. If you are facing north or south you are looking along the compass needle so the centre of gravity is aligned with the pivot and there is no effect. Accelerate the compass will show a turn towards the North Decelerate and it will show a turn towards the South. If you are facing west, the same effect occurs. This causes a false indication of a turn towards the north. an increase in speed Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005 Want to thank TFD for its existence Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content. Likewise, if you suddenly decelerate, the 'heavy' inertia will cause the 'heavy' end to continue away from the pilot, causing the compass needle to swing the 'N' towards the pilot. (to be performed) with increasing speed 2. towards the 'S' So the compass gives a false indication that you are turning towards the south. That means that if you suddenly accelerate, inertia will cause the 'heavy' end to lag behind and there will be a swing towards the pilot. If you are facing east the compass needle will lie across your line of sight and so the centre of gravity of the needle will be to the left of the pivot. It is the north pole of the magnet and has 'S' painted on it. The memory aid, ANDS ( Accelerate North, Decelerate South ) may help you. The 'hevy' end is the end with more mass under the pivot. Figure 12-9 Acceleration and deceleration errors are fluctuations in the. ![]()
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