Transcript excerpt from a helicopter ground-school video discussing aerodynamic vortices and hazards during steep (deep) approaches. Speakers describe seeing snow vortices trailing behind the helicopter, warn about landing into turbulent air when on a steep approach with tailwind, advise against downwind steep approaches (especially with crosswind), and emphasize very slow ascent rates.
You should see the snow trailing way behind me but not very far out front of the helicopter. So when you're thinking about starting with power, I'm going to turn downwind now. So then here's the point. Look at that. Look at those vortices. Look where they're going. 50, 100.
Or more feet.
I think about coming in on a.
Steep approach if.
You were slow or you're, if you're coming on a steep approach and you're slow and the wind's.
Behind you, think.
About all that turbulent air that you're coming down and, and landing into. I mean that's, that's selling the power. I think it's a great demonstration. So that's one of these deep approaches. You got to make them into the.
Wind at.
Minimum with a crosswind, don't do them downwind.
And that rate.
Ascent has got to be very.
Very, very slow.
So hopefully le doing today. Hopefully they all appreciate my snowplow job.
