The aircraft profile includes a weight and balance section where you can enter the weights/arm locations and the envelope values. When a profile is selected you can easily compute weight and balance with the W&B Calc tool under «Tools» menu.
Once everything is set and all the values are entered, you will be able to see the calculation reflected on a graph, under «Tools» menu.
On the screenshot at the upper-right, you will see the available fields to be completed. The weights for seats, baggage and misc will be entered from the «Tools» menu AFTER the rest of the data has been already completed. The same happens to the amount of fuel.
Note: you need to enter at least 4 points for envelope data.
Example on W&B tool
In order to complete data related to the aircraft’s nature, you MUST use a certified manual of the aircraft’s model.
Let’s first complete the data concerning the aircrafts specifications. We’ll take a C150 as an example.
In order to complete the «Envelope» data, the values are taken from the CG Envelope Graph.
We proceed with the Seats, Fuel and Baggage, as shown in the screenshot.
Note: The Miscellaneous part is optional.
Finally, we go to the «Tools» menu and we select the «W&B Calc» panel, from where we will complete with the weights and fuel information:
Note: once we have the module completed, we proceed to press on the button «Calculate».
The Weight and Balance module will allow you to use the following tools when flight planning:
This is why it is so important to carefully complete this module with all the required data.
Air Nav Desktop will compute all the required values and drop the final results on the Envelope graph. This will show whether the aircraft is balanced or not.
Here’s a diagram to give an idea of what values are involved in the final results:
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