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WarpD

Calculate Desired Landing Path (altitude) with HSI?

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Hello -I'm trying to calculate a desired landing path with the HSI variables (HSI_Horizontal_Needle, HSI_Vertical_Needle) to be used and reacted upon by an invisible gauge. The problem is that the farther out from the runway you are, the less accurate this is. Is there a way to calculate feet from the center of the HSI cone to establish an accurate desired position (altitude)? Thanks for any help.

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>Hello ->>I'm trying to calculate a desired landing path with the HSI>variables (HSI_Horizontal_Needle, HSI_Vertical_Needle) to be>used and reacted upon by an invisible gauge. The problem is>that the farther out from the runway you are, the less>accurate this is. Is there a way to calculate feet from the>center of the HSI cone to establish an accurate desired>position (altitude)? Thanks for any help.You would have to know how many degrees off you are in the vertical and horizontal from the ILS path. I suggest taking a look at how the two variables are defined value wise. ;) After that, simple geometry can give you the answer you seek.

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