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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]I'm hoping someone who is knowledgable about aviation can answer this, but why did the helicopter pilot ask for visual clearance?  In the audio you can hear the pilot asking for permission for visual clearance which was approved by the ATC, but why?  What would it be beneficial to the pilot?[/quote]

It’s standard. It’s nothing out of the ordinary. ATC just must approve.

https://www.reddit.com/r/ATC/s/f55jNolBC4
[/quote]

I also have a question for someone knowledgeable about aviation. A PP said that the pilot wouldn’t know if they were flying 150 ft above maximum elevation. If I’m flying in a relatively flat area with a maximum elevation is there no way to receive some kind of warning signal if the elevation is passed?  [/quote]

This.  Do the people in the helicopter have no way to determine their altitude?  Seems far-fetched.[/quote]

Of course they have a way of knowing -- there are elevation gauges in the helicopter.

Though it's true that helicopters fly by sight much more than airplane pilots do (especially commercial jet pilots, who are going to be very focused on their instrument panel, especially during takeoff and landing). So a helicopter pilot might not be looking at their elevation on their instrument panel. But they can still estimate altitude by sight, looking at their position in relationship to the landscape (especially while flying down a waterway with land and trees rising on either side).

ATC can also alert a helicopter to their height if it is too high. In fact ATC at National regularly tell the helicopters they are too high and need to get back down below 200 ft.[/quote]

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