17
Figure 1.17 Aileron Mounted to Wing
3.
Aileron pulleys
Two pulleys guide the lines to each aileron for control. Here we make and install the pulleys,
but the actual stringing is near the end, in Stage 7 (see Figure 7.4). Each guide is built from a
body of folded aluminum (WP9
– 11), pulleys (WC1) and axels (from 1/32” (.8mm) rod). Figure
1.18 shows the outer body (WP9) which is the same on both sides and the left (WP10) inner
body as folded. WP11 is essentially the same as WP10 but folded as a mirror image.. Put two
pulleys in the outer body and one pulley in each locations on the inner body. Glue these in
place on the top wing at the locations shown on Sheet C and being sure that they are
equidistant from the top and bottom of the spar so that the cables can pass around the pulleys
and through the forward hole in the wing ribs. The cables will be strung in Step 7, one of the
last activities.
Figure 1.18 Aileron Pulley guides