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<DIV><FONT face=Arial size=2>The wing does not act in a lifting matter when in
knife edge. The fuse is now the lifting body. The wings will act like the
vertical fin. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I took NATs advise and increased the positive
incidence in my plane and cured two issues.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>1. less pitch to the belly in knife edge
</FONT></DIV>
<DIV><FONT face=Arial size=2>2. seems to lock in better in level flight and
inverted flight</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Downlines are still ok as are up lines. I
have to hold a little down in inverted but I can mix that with a little more ATV
or try to move the c.g. Right now I wouldn't change anything but hte ATV
for the feel when inverted.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It doesn't hurt to crank in a few turns and try it,
you can always go back to your original setting.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Wayne Galligan</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=vicenterc@comcast.net
href="mailto:vicenterc@comcast.net">vicenterc@comcast.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> ; <A
title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> ; <A
title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=natpenton@centurytel.net
href="mailto:natpenton@centurytel.net">Nat Penton</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 06, 2005 4:14 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Abbra first fly report</DIV>
<DIV><BR></DIV>
<DIV>I think I should try to explain more. Right now the wings are set
to 0.75 degrees. That requires down trim for level fly. When the plane
is flying knife edge that down trim causes to go to the belly.
Therefore, if I decrease the positive incidence, I will decrease the amount of
down trim and hence the tendency to go to the belly in knife edge.
Again, I can see it but I could be very wrong. </DIV>
<DIV> </DIV>
<DIV>Experts in trimming, Is this correct?</DIV>
<DIV> </DIV>
<DIV>Vince</DIV>
<DIV> </DIV>
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Original message -------------- <BR>
<DIV>Nat,</DIV>
<DIV>That is correct so when the plane is in knife edge there would be less
tendency to go to the belly so I will need less up mix with rudder. Am
I right? </DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV> </DIV>
<DIV>Vince</DIV>
<DIV> </DIV>
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Original message -------------- <BR>
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<DIV><FONT face=Arial size=2>Vince, if you decrease the wing incidence you
will need more up elevater mix for the knife edges, not less. Let us all
know how it turns
out.
Nat</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=vicenterc@comcast.net
href="mailto:vicenterc@comcast.net">vicenterc@comcast.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">NSRCA</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, June 03, 2005 9:52
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Abbra first fly
report</DIV>
<DIV><BR></DIV>
<DIV>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center"
align=center><B style="mso-bidi-font-weight: normal">Abbra glow version
1<SUP>st</SUP>. Fly report<o:p></o:p></B></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center"
align=center><SPAN style="mso-spacerun: yes"></SPAN> </P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt">Yesterday, June 3, 2005 I
flew my Abbra the first time.<SPAN style="mso-spacerun: yes">
</SPAN>For those interested in the equipment please see Bob Pastorello
web page.<SPAN style="mso-spacerun: yes"> </SPAN>The version that
I flew is the glow version using OS160 engine.<SPAN
style="mso-spacerun: yes"> </SPAN>Final weight is 9 lb 14 oz.<SPAN
style="mso-spacerun: yes"> </SPAN>I know that I could reduce the
weight a little more by using lighter wheels and smaller receiver.<SPAN
style="mso-spacerun: yes"> </SPAN>It is OK for me since this plane
is my first 2 m class plane less than 10 pounds.</P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p> </o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><B
style="mso-bidi-font-weight: normal">First Fly impressions:</B><SPAN
style="mso-spacerun: yes"> </SPAN>Clearly the most constant speed
plane that I ever flown.<SPAN style="mso-spacerun: yes"> </SPAN>I
can fly closer to show a better presentation.<SPAN
style="mso-spacerun: yes"> </SPAN>It is going to take some time
for me to get along but definitively I like the change.<SPAN
style="mso-spacerun: yes"> </SPAN>Please understand that this is
my first wide body plane.<SPAN style="mso-spacerun: yes">
</SPAN>For those flying already wide body planes probably won’t be a big
change.<SPAN style="mso-spacerun: yes"> </SPAN>The down lines are
a pleasure to watch.<SPAN style="mso-spacerun: yes"> </SPAN>I felt
as a pilot that I have more time to make corrections.<SPAN
style="mso-spacerun: yes"> </SPAN>Slow and snaps rolls are
fantastic. Landing is a pleasure.<SPAN style="mso-spacerun: yes">&n!
bsp; </SPAN>Not sure yet about spins since I did it once only.<SPAN
style="mso-spacerun: yes"> </SPAN>I really didn’t like the
break.<SPAN style="mso-spacerun: yes"> </SPAN>I think I need a
little more up elevator since I lost some travel amount after the
elevator trimming.<SPAN style="mso-spacerun: yes"> </SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p> </o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><B
style="mso-bidi-font-weight: normal">First Trimming Impressions:<SPAN
style="mso-spacerun: yes"> </SPAN></B>As soon I took off I knew
that I need down trim.<SPAN style="mso-spacerun: yes"> </SPAN>I
got fixed and finish with 28 bits of down trim in my JR 10 X radio.<SPAN
style="mso-spacerun: yes"> </SPAN>Also I finished with 4 bits of
left trim.<SPAN style="mso-spacerun: yes"> </SPAN>Ailerons and
elevators were set up for 10 degrees travel.<SPAN
style="mso-spacerun: yes"> </SPAN>After the first landing, what a
landing it was a 10 using the old rules, I checked the elevators and
found that one half was a little more up than the other half.<SPAN
style="mso-spacerun: yes"> </SPAN>Also, I found the same problem
in the right aileron that was a little more up. When I say a little is
almost difficult to see at naked eye.<SPAN
style="mso-spacerun: yes"> </SPAN>Definitively the plane was
tellin! g me that I need a better mechanic.<SPAN
style="mso-spacerun: yes"> </SPAN>This was clearly mechanic error
(me!!).<SPAN style="mso-spacerun: yes"> </SPAN>I checked the CG
and the plane looks fine now.<SPAN style="mso-spacerun: yes">
</SPAN>If you ask me where it is the CG now “I will say I don’t
know”.<SPAN style="mso-spacerun: yes"> </SPAN>I am one of those
guys that check the CG in the air.<SPAN style="mso-spacerun: yes">
</SPAN>I put the battery behind the firewall so I knew that I was a
little nose heavy.<SPAN style="mso-spacerun: yes"> </SPAN>The
plane requires a little pressure when flying inverted.<SPAN
style="mso-spacerun: yes"> </SPAN>Right now I need more time to
finish CG adjustments.<SPAN style="mso-spacerun: yes"> </SPAN>My
taste is a little tail heavy so I will start to move the battery but I
want to correct the positive incidence first.<SPAN
style="mso-spacerun: yes"> </SPAN>I will check the actual locatio!
n for those that want to have the information.<SPAN
style="mso-spaceru: yes"> </SPAN>The rudder was set to about 30
degrees.<SPAN style="mso-spacerun: yes"> </SPAN>I think is
OK.<SPAN style="mso-spacerun: yes"> </SPAN>I did the master
schedule one time.<SPAN style="mso-spacerun: yes"> </SPAN>I feel
now that I am OK for travel.<SPAN style="mso-spacerun: yes">
</SPAN>Probably, I will need to get a little more up for the spin but I
did it only once yesterday.<SPAN style="mso-spacerun: yes">
</SPAN>In the second fly, I did finish with 8 bits of down
elevator.<SPAN style="mso-spacerun: yes"> </SPAN>I know that my
plane was set up for 0.75 degrees positive incidence.<SPAN
style="mso-spacerun: yes"> </SPAN>I also know that you can order
the plane now using 0, 0.25, 0.50 and adjustable that you will need to
install.<SPAN style="mso-spacerun: yes"> </SPAN>It is clear to me
that 0.75 is too high and probably I will go 0.25 in my next Abbra to
reduce the down elevator trim.<SPAN style="mso-spacerun: ">
</SPAN>The positive incidence and the elevator trim causes that the
plane requires rudder with up elevator mix to hold knife edge in both
sides.<SPAN style="mso-spacerun: yes"> </SPAN>In this regard, it
is clear the plane requires opposite aileron also.<SPAN
style="mso-spacerun: yes"> </SPAN>This is not a surprise to me
since I never had a pattern plane that didn’t require any mixing during
knife edge.<SPAN style="mso-spacerun: yes"> </SPAN>I still
tweaking with rudder mixing with elevator and rudder.<SPAN
style="mso-spacerun: yes"> </SPAN>The final information will come
in the future.<SPAN style="mso-spacerun: yes"> </SPAN>My next step
in trimming the plane is to try to reduce the positive incidence to 0.25
degrees to minimize the mixing and the down elevator amounts.<SPAN
style="mso-spacerun: yes"> </SPAN>Also, I will increase to 12
degrees the up elevator to improve the break on spins.<SPAN
style="mso-spacerun: yes"> ! </SPAN>On lateral balance I don’t
think that I have to adjust.<SPAN st yle="mso-spacerun: yes">
</SPAN>The plane tracks very well in loops but I need to check a little
more.</P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p> </o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt">Tomorrow, I will have a
judge calibration section.<SPAN style="mso-spacerun: yes">
</SPAN>The judges will tell me if my impression of fantastic landings,
snaps and slow rolls are realistic. </P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p> </o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt">Vicente Bortone</P></DIV>
<P>
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