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Old September 9th 04, 08:03 PM
Beav
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"helicopterandy" wrote in message
om...
"Beav" wrote in message

...
"helicopterandy" wrote in message
om...
SEAN,
I DIDN'T MEAN HE ROLLED OFF THE POWER, ONLY THAT HE LOWERED COLLECTIVE
TO FULL DOWN TO COUNTER THE LOSS OF TAIL ROTOR.


Loweriing collective wouldn't do anything for the tail rotor action. If

the
tail rotor DID fail, then the pilot would need to remove the TORQUE

whivh
the tail rotor now can't counter, and that's when the rollong power off
would come in handy.


Beavis(boy, does your name fit!!),



Oooh, never heard THAT before.

How long have you been studying helicopters? Five minutes? Saying as
you did above that "lowering the collective wouldn't do anything for
the tail rotor action" speaks volumes of your obvious lack of even the
basics of flying helis.


Oh yeah? Well explain to me how lowering the collective without reducing
power would affect the effect (action) of the tail and improve matters in
the scenrio. If anything, lowering collective would result in a reduced load
on the rotor system and an INCREASE in rotor speed and a corresponding
increase in tail rotor speed, which as you'll recal is no longer
controllable, so the net result would be in increase in yaw rate. Lowering
collective alone would NOT do anything for the uncontrolled yaw which our
intrepid pilot was encountering.

But then you do a 180 and say that "that's when rolling off the
throttle would come in handy"...


And that's exactly when it WILL come in handy. If the tail rotor failure
resulted in the heli still turning against torque, (and it did) there are
only two ways to help control the yaw. One is to use the anti-torque pedlas
(not going to happen if they're not doing their job) and the other is to
reduce power/torque. that usually happens when you remove some power.

Let me assure you of one thing above
all else, YOU NEVER roll off the throttle unless the collective is in
a full down position. EVER.


I imagine that when faced with a looming building, I'd let that particular
rule go by the wayside. I suspect the damage caused by an overspeed might be
"slightly" less than the amount of damage a building makes.

If I have to explain this to you then you really shouldn't try to get
involved in a discussion you know ZERO about.


I'll try hard to remember that.

Sorry, I guess you cannot learn that with your remote control can you?


I don't need to.

Do us all a favor and go buy a Rotorcraft Flying Handbook and READ IT.
Your stupidity is exactly why this site is so poor.


If this site os so poor, what're you doing here?

Please don't come
to our Yahoo group.


I'll come where I want if it's all the same to you.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk