[NSRCA-discussion] Flight conditions?

[Glen Watson]

Hello Emory,

 

Seeing that you are using the Futaba WCII TX instead of the traditional
trigger method of using a switch to turn on a snap condition, try mapping
the snap condition to either the elevator or aileron stick to turn on when
you reach 90% of up or down and left or right stick position.  This way the
condition is only engaged when the stick is between 90% to 100% position
thus eliminating the need of throwing a switch for snaps.

 

Now the condition parameters used for snaps is a completely different topic.
For the current Masters sequence the following parameters are a good
starting point.  

 

-         Elevator expo goes to zero (I have heard others use positive expo)
The result is the elevator quickly pops to full deflection aiding in rapidly
changing the aircraft's angle of attack forcing a stall

-         2 degrees increase of up elevator travel (est. 8 to 10) will
differ by aircraft design

-         Reduced rudder throw (est. 45 to 35 degrees) will differ by
aircraft design and preferred snap rotational speed

-         Throttle increases slightly over idle

 

Besides eliminating the need to throw a switch this enables the pilot to
operate the aircraft in a normal flight condition right up to the moment
when the snap is executed.  In addition the instant the snap is completed
(TX stick moves past the trigger point) the flight condition returns to
normal.  In my mind this greatly increases the ability to manage lines flown
before and after the actual snap without having to react/adjust to something
other than normal throws and expo used to aid in snap execution.

 

Regards,

Glen Watson

http://www.geocities.com/rcprecision/pah.html

 

 

 

  _____  

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Emory
Schroeter
Sent: Sunday, August 20, 2006 2:25 PM
To: NSRCA Pattern List
Subject: [NSRCA-discussion] Flight conditions?

 

Alright, since it's kind of quiet today, let me see if we can get some
discussion going. Up until now, I have been flying without using any kind of
dual rate or flight conditions. My theory was that the less stuff I had to
flip on the TX, the better. I just dialed in a fair amount of expo to try
and keep it smooth.

 

In Ocala this year, Jason Shulman was flying my 1st Black Magic, may it rest
in pieces...I mean peace. He felt that I was giving up a lot by not having
reduced throws to make things smoother and using dual rates or conditions
for snaps and spins. So, I am getting ready to set up my radio for a snap
flight condition. My question is what kinds of tricks or changes do you use
for this other than the obvious increase in throws? I am using a Futaba
9WCII and I am currently flying masters.

 

Thanks in advance,

Emory Schroeter.

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