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rhyndman(at)paradise.net. Guest
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Posted: Fri Oct 27, 2006 1:32 pm Post subject: Incident Board on Classic |
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Gentlemen, I have built the wings for the 'Classic' and have fitted
incident boards as per the build manual. These are used to set the wing
incidence when installing the wings on the fuselage and then the wing
root pin sockets are installed to fix the wing at the same incidence.
I would like to start filling the wings before installing the wing root
pin sockets so the incident boards are in the way. I notice that the
XS has another method for aligning the wing on the fuselage which uses a
spirit level on the template that was used for fitting the flaps. Has
anyone used the 'XS' method instead of the 'Classic' method for wing
root pin sockets installation and if so are there any problems by doing
this?
Ross
Classic, wings, flaps, ailerons, tailplane, rudder and some of the fuselage.
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grahamsingleton(at)btinte Guest
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Posted: Fri Oct 27, 2006 3:42 pm Post subject: Incident Board on Classic |
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Ross
the best way to set up the wings is to first fix the left wing as
specified in the plans. Now, the right wing needs to be set so that the
incidence at the outer end of the flap is identical, this is the part of
the wing that will cause roll if its not right, the wing root doesn't
really matter with respect to roll... You need a second incidence board
for this part of the wing. I use a Vee to locate the nose radius of the
wing section and a ramp to locate the top of the trailing edge. In other
words a reference for the incidence of the airfoil section. (I hope this
is making sense ) Just be sure that the two wings agree at the tips
of the flaps.
You can safely knock off the incidence boards as soon as you have the
left wing incidence set on the fuselage.
Graham
Ross wrote:
Quote: |
Gentlemen, I have built the wings for the 'Classic' and have fitted
incident boards as per the build manual. These are used to set the
wing incidence when installing the wings on the fuselage and then the
wing root pin sockets are installed to fix the wing at the same
incidence. I would like to start filling the wings before installing
the wing root pin sockets so the incident boards are in the way. I
notice that the XS has another method for aligning the wing on the
fuselage which uses a spirit level on the template that was used for
fitting the flaps. Has anyone used the 'XS' method instead of the
'Classic' method for wing root pin sockets installation and if so are
there any problems by doing this?
Ross
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Troy Maynor
Joined: 10 Jan 2006 Posts: 162
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Posted: Sun Oct 29, 2006 11:39 am Post subject: Incident Board on Classic |
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Graham wrote:
<<<Ross
the best way to set up the wings is to first fix the left wing as
specified in the plans. Now, the right wing needs to be set so that the
incidence at the outer end of the flap is identical, this is the part of
the wing that will cause roll if its not right, the wing root doesn't
really matter with respect to roll... You need a second incidence board
for this part of the wing. I use a Vee to locate the nose radius of the
wing section and a ramp to locate the top of the trailing edge. In other
words a reference for the incidence of the airfoil section. (I hope this
is making sense ) Just be sure that the two wings agree at the tips
of the flaps.
You can safely knock off the incidence boards as soon as you have the
left wing incidence set on the fuselage.
Graham>>>>
Graham,
Was this in the manual or did I forget that I did it so many years ago? (I
am referring to using a second set of boards to check at the flap end
station). I'm thinking it was not and things aren't as good as they could
have been on my plane. Annoying....
Troy Maynor
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