F3A - snap roll query

[Woodward James R Civ 412 TW/DRP]

Dear Snap Confused in Dallas,

 

To set the mood, please sit down in your favorite leather covered reclining
chair (on the patio), with a big glass of sweat tee or beer.  On the
Advanced 45 down snap (advanced or masters), I have problems entering it to
slow!  During the finals, this year, I zeroed down line 1.5 snap and I
thought it was perfect.  I entered it a little slow and although I did the
same finger movements I always do, it just came out like a fast aileron roll
(Tony S., correct me if I'm wrong).  To correct it, I carried a little more
speed and made SURE I added elevator first, them crammed the rudder and
aileron in the corners.  Next sequences had high snap marks.  A little more
speed helped.  I did not change my rates, or hit another switch or something
weird, just carried more speed.  

 

Technique:  Add elevator as fast as you can to full deflection.  As soon as
the stick hits full deflection, swipe it over to the side (swiping rudder at
same time).  Practice stick movements while plane is on ground. Crude,
simple.

 

I don't use snap switch.  I use the sticks because I lead with elevator and
end holding rudder ½ second longer than the elevator and aileron (same
direction for 1.5 revolutions, opposite direction for 1 revolution).  

 

I suggest golf as an outlet to pattern flying because you can play and drink
at same time.

Jim W :-)

 

 

-----Original Message-----
From: Gray E Fowler [mailto:gfowler at raytheon.com] 
Sent: Wednesday, November 05, 2003 2:55 PM
To: discussion at nsrca.org
Subject: RE: F3A - snap roll query

 


Dear James... 
On the tail wiggle. The Advanced negative snap 45 down has a tendency to
pick up speed and produced a very rapid snap (hey-somehow I think you know
this but gotta go through it for those that do not know how famous you are).
Anyway-as a result I see alot of what looks like what you describe as the
rapid roll with a tail waggle (much more descriptive than wiggle which
infers that it keeps going then fizzles out). So when I mentioned the famous
line "That was not a snap" a person's response to me was, yes it was because
with aileron alone the plane cannot roll that fast-therefore it is a snap-
just very rapid.  Kinda made sense at the time....All the elements where
there, just in a micro second.....Then I was told that the pilot must snap
so that the judges can see it...so then that was a zero.....basically cuz it
was too fats to discern all the elements. 

So, me as a pilot., I am trying to make it as to be seen, but I also noticed
that the guys with the fast aileron roll tail waggles never get  ZEROs even
at the NATS or even from me. And in a moment of mental panic that type of
snap is my back-up (i.e. mechanical snap). What are your thoughts on
this???? Please do not tell me to take up golf instead or stick to flying
sport semi-scale P-51s.

Signed 

Snap confused in Dallas........

Gray Fowler
Principal Chemical Engineer
Composites Engineering 

 

 

 

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