The tailplane is installed at zero degrees incidence. It is therefore set parallel to the canopy sills. A self levelling laser works well for this. Add strengthening layers to the rear face of the forward fin spar in the area of the tailplane attach pins (6 layers 280gsm at 45 deg 100mm above and below pin centreline). Drill holes for the pins through the spar and insert pin bushes into the tailplane with cotton flox. Roughen the phosphor bronze just prior to bonding. Ensure that pins and bushes are parallel (NB). Tailplane front attach bolt is positioned as far forward as possible. Roughen all bond areas and bond as indicated on pictures.
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