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Step 1- Cleco
the two modified inboard HS-905 Nose Ribs (the ribs with
the hole cut in the web) to the front spar assembly as
shown in Figure1. (Ignore the cradles and skins for now,
they are introduced in a later step.) Notice that there
are five holes in the spar at these two rib locations, but
only three holes in the aft flange of the nose rib. Using
a 1/8" drill, match-drill the two extra holes of the
spar into the nose rib.
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Cleco into position the two inboard
HS-1004 Inspar Ribs the ribs with four trimmed flanges)
and using the same drill, match drill the center hole of
the nose rib into the Inspar rib flange |
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Step 2- Cleco
the rest of the HS-905 Nose Ribs to the front spar
assembly as shown in the figure. Note that except for the
two inboard ribs, the flanges of the now ribs are pointed
outward. Use a #30 drill to final-drill all of the holes
common to the nose ribs, spar web, and the two inboard
Inspar ribs.
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Step 3- Cleco the
rest of the HS-904 Nose Ribs and Inspar Ribs to the front spar
assembly. Once again except for the two inboard Inspar ribs, the
flanges of all the ribs point outboard. Notice in the figure that
the Inspar ribs with two trimmed flanges are located just outboard
of the Inspar ribs with four trimmed flanges.
Final Drill the holes in common to the Inspar ribs and the
web of the front spar assembly using a #30 drill. |
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| Step 4- Mark
the nose and Inspar ribs so that , once removed, they can be
reassembled in the same position on the spar. |
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Step 5-Deburr
the edges of the HS-1001 Skins. Remove the vinyl from the inside
surface of the skins; the added thickness makes it difficult to
install the HS-905 Nose Ribs.
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Step 6-Set
up the four cradles cradles to support the HS-1001 Skins as shown on
Figure 1, then clamp them to the work bench. Adjust the position
of the cradles, if necessary while the stabilizer is being clecoed
together so they don't interfere with with the alignment.
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Step 7-Insert
the HS-1001 Skins into the cradles. The skins are symmetrical; at
this point there is no top or bottom, left or right. So it does
not matter which skin goes in which cradle. just make sure the angled
end of the skins are facing inboard.
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Step 8- One
at a time, remove the nose ribs from the front spar assembly and
cleco then to the skins. Cleco the front spar/Inspar rib assembly
and cleco them to the skins.
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Cleco the front spar/inspar rib
assembly to the nose ribs and flanges of the front spar to the skins. Don't cleco the inspar ribs to the rest of the skins yet. |
HS hung up on wall to make room for basic sheet metal class
we're holding tonight, I really like using the slot board as
it can be changed around to accommodate shelves hooks and so on
and is very strong and looks nice.
Projects for class are on the table, it is a very nice
little section on wing panel in which you learn most of the techniques
of layout, drilling, deburring, dimpling and riveting and gives a
new builder a lot of basics. |
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