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<DIV><FONT face=Arial size=2>Eric, thanks for taking the time to write this long
description. I'll be working on this my next trip to the field. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>In the past when I've tried to do two rolls with
rudder and elevator the challenge I found was keeping the heading straight
through both rolls. I imagine this is an issue of not feeding in the rudder
inputs at exactly at the correct time. I'm pretty close, but off just
enough to make the heading deviate.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Keith Black</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Eric.Henderson@gartner.com
href="mailto:Eric.Henderson@gartner.com">Henderson,Eric</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, July 09, 2003 8:37
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> 1/2 rolls full rolls and two
rolls.</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial><FONT color=#0000ff><FONT
size=2> There was a note a few days ago about rolling that I think still
needs some attention.There was a time when I cranked the ENYA 120R up to full
bore and tore into these maneuvers and got them over with as quickly as
possible. Now I like to roll as slowly as suits the maneuver and almost never
at full bore. (WOT) What changed the most was the plane I flew. The
older designs required more rudder correction as they went from wing lift to
fuselage lift. Often the fuselages were too small and almost always the center
or lift of the fuselage was not even close to the
CG.</FONT></FONT></FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2>Today's planes have this worked out. The new designs are not nearly as
significant in how wide or bulky they are as to how well balanced they are. I
do not want to trash anyone's personal pet plane here but some of them
literally "roar" in knife edge due to the poor "balance of wing to fuse
side-area and CG relative to C/L.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>You
can still do a very respectable axial roll with most planes out there. Where I
see folks struggle is the roll rate and the reaction to what the plane is
doing. If a plane is flying level and dips its nose you immediately correct
with elevator. If the same plane was in knife edge most of us would roll out
before jamming in some rudder.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2>There is a 1/2 roll exercise that will help anyone trying to
do good rolls. Try doing a half roll only, time and time
again. Apply left aileron at such a rate that the plane is not twinkle
rolling. at the same time apply right rudder until the plane is inverted. (A
good discipline is to roll back and not through the next 1/2 roll- at least
not yet! - With my system you only get to do the full roll if you can hit dead
level in the 1/2 roll on a regular basis.) What you will actually also do is a
reflex "catch" of the plane with a little down as it hits inverted. Stop
rolling right there and see what happened. If the plane climbed you put in too
much rudder or vice versa. If the plane lost heading you were too soon or left
it in too long.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>You
have to work at this 1/2 roll until you can transition to inverted with
confidence,</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>Then
you practice doing the same thing from and inverted entry. Left aileron is
this case is followed by left rudder. A simple rule is to say if inverted
rudder roll the same way. Keep doing these half rolls until you can come out
level an upright. Don't be tempted to string the two together until you can do
both 1/2 rolls equally as well. The first ten times you pause in the center,
then gradually it becomes one roll. It might seem tedious but it is very like
learning aileron coming towards you. At first you have a "system" and thing it
becomes instinctive.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>All
of the above is aimed at horizontal 1/2 roll and single roll
maneuvers.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>Now
to tackle the two consecutive rolls. I use used to do them with little bumps
of elevator and then with little bumps of rudder only. What change was the
planes. I would suggest that most of what I have seen is done at too high a
speed. Too much speed gives fast changes and less time to think/react. the 2
rolls can be done at 1/2 throttle going downwind. A plane like the
Quest, (Forgive the repeated mentions but is really does work well in roils),
only needs a touch of elevator as it goes through inverted, none when upright
and another touch through the second inverted. My Hydeout, Hydeaway, Focus and
Temptation, needed a touch of rudder as they came to both of the upright
positions.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff size=2>If
your plane needs very little input you can roll it a bit slower and give
yourself more time to hit the "bumps of control input". If it needs a lot of
"altitude-maintenance-help" then you should elect to roll it a bit quicker. If
you are rolling it so fast that you don't need any input I will wager that you
are really rolling to fast.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2>So will any of this help. Well it's a bit like learning to write,
You learn your letters, then words and then sentences. Take solace in how long
that took, and then apply that experience to give you the patience to work on
the 1/2 roll drill. Once you get a good roll that you commanded you come back
for more and more...</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2>Eric.</FONT></SPAN></DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=999054900-10072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV></BLOCKQUOTE></BODY></HTML>