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Miguel Vidal RV-8
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Date: 6-18-2022
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Number of Hours: 2.70
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Manual Reference: 8s8PP-1r1 8-16&17
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Brief Description: RV-8 Fwd Fuselage Structure
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Steps covered from Construction Manual:
(LH parts)
Move the Fwd Fuselage Sub Structure so that the left side overhangs the edge of the worktable. Place the F-843-L-1 Lower Longeron in place along the left edge of the F-822-1 Fwd Floor Panel with the bend centered on the bend relief notch in the edge of the fwd floor panel (DWG 67).
Align the vertex of the F-843-L-1 Lower Longeron angle with the edge of the F-822-1 Fwd Floor Panel, and clamp in position. Clamp the fwd end of the lower longeron angle with two clamps so that it is held in flush contact with both webs of the WD-803-L-1 Lower Engine Mount Bracket. Clamp the F-843-L-1 Lower Longeron to the fwd and aft wings of the WD-822-1 L.G. Box Weldment (DWG 67).
Match-Drill #30, the aft most hole in the F-822-1 Fwd Floor Panel that matches with the aft end of the F-843-L-1 Lower Longeron. Cleco the hole from the inside, to lock in the aft position of the lower longeron. Match-Drill #30, the four bolt hole locations at the fwd end of the fwd floor panel that are common with the WD-803-1 Lower Engine Mount Bracket. Final-Drill the four bolt holes to #12. Install temporary bolts in the fwd and aft most bolt holes, to lock the fwd position of the lower longeron to the engine mount bracket (See “F-843-1 Details”, DWG 67).
Match-Drill #30, the remaining 1/8 holes common between the F-822-1 Fwd Floor Panel and the to the F-843-L-1 Lower Longeron. Cleco as you drill.
Final-Drill #19, the two screw holes common between the F-822-1 Fwd Floor Panel, the F-813-L-1 Lower Longeron, and the WD-822-L-1 L.G. Box Weldment. Machine countersink the two #19 holes (flush head on the bottom side of the fwd floor panel) for flush screws (See “F-843-1 Details”, DWG 67).
Unbolt and uncleco the F-843-L-1 Lower Longeron from the F-822-1 Fwd Floor Panel. Deburr all the rivet and bolt holes in the fwd floor panel, lower longeron, and the WD-803-1 Engine Mount Bracket, that were drilled in the three previous steps.
Radius the aft end of the vertex on the F-843-L-1 Lower Longeron (See “D
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Lower Longeron angle clamped in place, ready for match-drilling
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Match-drilling Lower Longeron angle
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