pic. 1. Fire wall mounting frames (my design)

pic. 2. Frames are epoxied into nacells.

pic. 3. Engine nacells are tacked glued to the building board on some reference lines.

pic's. 4 thru 8. The engines and wing are 0-0 degrees. In other words, no up/down or left/right thrusts, so this method I came up with works very well.

The wing is placed L.E. down into the 2 inner nacells, aligning the end wing panells with the end reference lines. (Basically centering the wings.)

An incidence meter is attached near to the center of the wing (the meter part "gauge" has been removed and is not needed at this time.) A large 90 deg. square is then pushed up to the incidence meter, then, if need be, the wing an be slightly rolled in the nacell pockets to bring the incidence meter parallel to the square. Then clamp it so it cant move. The 2 smaller 90 deg. squares are used to align the wing along the horizontal reference lines.

PIc. 9. Check also that both end wing pannels are the same distance from the work surface.

Pic. 10. Final check with level work surface, incidence meter and 90 deg. square.

gunny