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Say what?!  

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Author: 206 Guy   Date: 1/11/2022 10:15:48 AM  +0/-0   Show Orig. Msg (this window) Or  In New Window

if the aircraft is spinning, the TR may not be able to produce enought thrust to stop the spinning with any torgue setting. you also didn't explain how you get the TR into clean air. voila is not an answer.


What?!  Are you even a pilot?  How you get the t/r into clean air?  Are you KIDDING me?  Man(?) you need to get some understanding of how a helicopter works. The t/r never goes into full, continuous "sideways-VRS" as some belielve.  It can experience temporary variations in thrust which can result in unanticipated yaw.  The "pilot" needs to recognize that unanticipated/uncommanded yaw quickly AND STOP IT with a timely, sufficient and forceful application of left pedal.  That's what you're paid for.


To get into this theoretical and mythical LTE, there must theoretically be some wind, right?  Wind that's either directly 90 degrees to the tail rotor which results in that mythical "sideways VRS" that Robbie pilots worry so much about...  Or wind from the front-left that blows the main rotor downwash into the tail rotor and theoretically causes - the other thing that Robbie pilots worry about - the tail rotor to become suddenly, completely ineffective.  Here's the reality: In either case, as soon as the nose turns even a little bit, the inflow to the t/r has changed an the condition that was causing the fluctuation/variation of t/r thrust does not exist anymore. Voi-friggin-la, Maverick.


The third scenario is a direct and strong tailwind which makes the helicopter want to point itself into the wind.  And yes, a 206 hovering with a strong tailwind can be a challenge.  You have to be really on top of your game and not become surprised that the helicopter "suddenly" wants to act like a big G-damn weathervane.


Helicopters don't just start spontaneously "spinning around."  If you're in one that is, and you're the PIC, you've serious f'-ed things up by operating "outside of the envelope" as we used to say before "pilots" started blaming the aircraft for their screwups.  As long as you're abov ETL, you're golden.  If/when you fall below ETL, you better be really certain that you understand where the wind is coming from and how it's going to affect those spinny things that your controls are connected to.

 
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Some people really think LTE is a myth? +0/-0 HeloHead 1/8/2022 9:42:43 AM