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The following question came from Lachlan Habgood
On the Chrysalis 2M wing where do I position the laser cut
wing tip plate. From the instructions (in Panel 4 of the Wing
instructions), it looks like it is glued on top of the 2 lower spars and
against the trailing edge and the outside of the far rib. Is this
correct?
From : Don Stackhouse
YES
It doesn't seem to sit well like that though, as the spars are different
heights. Do I just gently bend it in position and then glue it down? If
so does that have any implication for covering later?
It rests primarily on the main spar, and with the lower surface of the
aft end of the tip plate aligned with the lower surface of the trailing
edge stock. Later, in step 9, you will bevel off the lower surfaces of
the lower spar caps to taper smoothly to the edge of the tip plate. If
the lower rear spar cap isn't firmly up against the underside of the tip
plate at that time, you can flex it up into that position and glue it to
the underside of the tip plate at that time.
Do the wing instruction mean that the upper spars are cut at the point of the
outer rib and then shaped so that they fit flat and flush to the wing tip
plate?
Yes. I find that it actually works better to bevel the underside of the
little short pieces of upper spar cap that run between the last rib and
the edge of the tip, it's easier to get a better fit, and to keep the
upper, outside surface of that piece of spar cap flat and smooth for the
covering.
I am going to build the fuse as a V-tail. In the Fuse instructions (Panel 5)
it says (in the second paragraph) to drill two shallow holes in line with
notches on F5. I just want to confirm that the push rods exit the fuse at
that point before being connected to the V-tail
surfaces.
Yes, that's the standard way to do it.
Another option:
It is possible to build it with the pushrods coming out the back instead
of having the pushrods exit through the sides between F5 and F6, but a
lot more complex in terms of the control horn mounting and geometry. It's
one of those things that we figured a beginner was likely to get into
trouble attempting, but an experienced modeler, or one with an
instructor, would figure out for themselves. There are a number of
options that fall into that category, and we deliberately leave any
suggestion of them off of the plans and instructions to avoid sending
beginners into territory that might get them in trouble.
I've attached a photo showing how I did it on mine. You can also see some
little diagonal braces inside the end of the fuselage back there, which
were an early experiment at stiffening up that end. We later found they
were a nuisance to build, and not necessary.
Don Stackhouse
DJ Aerotech
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