l
F.8L Falco Construction Manual
22–4
Revision 4, March 1, 2002
❏
Drill four 1/8ӯ vent holes in the aileron/flap spar as shown on Drawing No. 206.
❏
Install the plywood pads under the channel-nuts as shown on Drawing No. 204. You can
glue on the pads and then re-drill the bolt holes through the plywood pads, or you can
clamp the pads in position, drill through them and then use the channel-nuts to clamp the
pads in position while gluing.
❏
Trace the outline of all hinges and channel-nuts for varnishing, then remove and varnish
the wood under these hinges and channel-nuts. Be careful not to get varnish on the spars
where the ribs will be glued.
❏
When the varnish is dry, re-install all channel-nuts. The screws for the channel-nuts
should be installed at this time. Pilot drill the wood with a 3/32ӯ drill. Ream the 1/8ӯ
holes in the channel-nuts with a 9/64ӯ or No. 27 (.1440ӯ) drill.
Note:
You may be tempted to skip the installation of the channel-nuts—don’t do it!
After the diagonal trailing edge ribs are installed, they are difficult or impossible to install.
The hinges are not installed during skinning since they will interfere with float sanding
and the jigging method.
❏
Cover the threaded ends of the channel-nut bolts with masking tape to protect them from
glue during assembly.
❏
Prime the channel-nuts with zinc chromate primer to prevent corrosion, or paint with
epoxy.
130
1100
Aileron Lower Leading Edge Skin
Sta. 10-14
130
1100
Aileron Lower Leading Edge Skin
Sta. 10-14
160
1100
Aileron/Flap Lower Leading Edge Skin
Sta. 6-10
160
1100
Aileron/Flap Lower Leading Edge Skin
Sta. 6-10
160
1100
Flap Lower Leading Edge Skin
Sta. 2-6
160
1100
Flap Lower Leading Edge Skin
Sta. 2-6
180
1100
Aileron Upper Leading Edge Skin
Sta. 10-14
180
1100
Aileron Upper Leading Edge Skin
Sta. 10-14
200
1100
Flap Upper Leading Edge Skin
Sta. 2-6
180
1100
Aileron/Flap Upper Leading Edge Skin
Sta. 6-10
180
1100
Aileron/Flap Upper Leading Edge Skin
Sta. 6-10
200
1100
Flap Upper Leading Edge Skin
Sta. 2-6
Grain Direction
Grain Direction
Figure 2
Aileron/Flap Assembly
❏
Use two 48”x48” or larger sheets of 2mm birch plywood and cut in accordance with Figure
2. These dimensions allow about 25mm of extra material. You may want to increase the
widths of the upper leading edge skins by 20mm (to 220 and 200) for extra material
required by the 20x20-glued-to-an-overhang method of bending the plywood.
Содержание F.8L Falco
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