Vortex Ring State Demonstration and Recovery (FSX)

http://geardownfs.com/

Demonstrating the aerodynamic phenomenon known as VRS, or Vortex Ring State, in the Dodosim Bell 206B Jetranger. Not a tutorial or anything, just a quick demonstration of what VRS is, how it is induced, and how we can recover from it.

Vortex Ring State is when you descend into the helicopters own down wash, or "Dirty Air". It is induced by having a high rate of decent with a low forward airspeed. In this demonstration, I am in an OGE hover (Out of Ground Effect), and lower the collective to descend into the down wash. The helicopter starts vibrating, and begins a rapid descent. This is VRS.

Recovery is simple, but opposite of human nature. As we fall, we lower the collective, to make the down wash area as small as possible, and apply forward cyclic pressure, to move out of our own down wash as we build up forward airspeed. It is human nature to add to the collective as we start falling, however, this will only create a bigger down wash bubble, and will make the VRS situation worse, and we don't want that to happen.

In this demonstration, the collective was lowered a bit too much, hence the rotor going far over the safe RPM area. Wouldn't be good in real life, luckily, this is only a simulator.

Category:

Education

Tags:

• microsoft
• flight
• simulator
• fsx
• msfs
• dodosim
• bell
• 206b
• jetranger
• III
• vrs
• vortex
• ring
• state
• aerodynamic
• recovery

[Seedot0001]

where can i get FSX

[TheyTookMyWoody]

Various online retailers like amazon, newegg. Or, in stores at places like Target, Best Buy, WalMart, ect. You can probably find a lot of different places through Google Shopping too.

[guy014]

Woah, scary! Great demonstration! :)

[TheyTookMyWoody]

Thanks man. It's scariest when you get careless, and it happens on approach, at low altitude.

[benfalas]

What great machines the helis are indeed..

[TheyTookMyWoody]

Yep, definitely.

Helicopters, always trying to shake apart, the minute your attention goes somewhere else, haha.

[acezboy561]

Now that, was cool :)

[FsxCaptainLukas]

@forrest225 Oh okay! Thank you so much. Helped me a lot! =)

[forrest225]

@FsxCaptainLukas When you descend to quickly the heli descends into it's own turbulence, when this happens you cant recover by increasing pitch or rotor rpm, you must fly forward out of the turbulence.

[FsxCaptainLukas]

What is this? Is it like a stall? I just got the Dodosim Bell 206 for FSX and I'm really struggling with it. I don't fly helicopters much.

[motokid032]

Great demonstration.

[flynreel]

where is this at?? 

[jastrebok]

I miss VRS in other helis :( Dodosim did a great job

[99F]

@TheyTookMyWoody oh i knwo FSX is SOOO scary

[crewdogg16]

When recovering from vortex ring state (settling with power), after lowering the collective and pitching nose down, you wait for the airspeed indicator to "come alive"; at that point, you are out of settling with power and can initiate a climb.