The partners of the ICARUS consortium have experienced how difficult is to explain the complexity of the issues involved in a Common Altitude Reference in the extremely dynamic Very Low-Level airspace.
For that reason, we have created a video that shows these complexities in a very graphical way. The video depicts three common scenarios:
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Inaccuracy of the QNH reference shown when a General Aviation airplane lands in an airfield
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Height above take-off point is not enough to avoid obstacles in the ground
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The human factor in the QNH reference
We hope you enjoy the animation and that it helps understand the challenges posed by the ICARUS concept.