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Gary's RV8 Construction Log
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Date:  1-23-2010
Number of Hours:  1.00
Manual Reference:  
Brief Description:  Rear Spars: 1 - Reinforcement fork and doublers

I clecoed the rear spar reinforcement fork (W-707G) and rear spar doubler plate (W-707D) to the rear spar and match drilled the holes to final size.

I was unable to countersink the holes that were right up against the flange on W-707F (as per DWG10A Detail) as the foot of the microstop countersink was too wide prohiiting access. I then ground down the one side the foot, rounded out any edges and then smoothed out all the scratches and polished it. It worked like a charm allowing easy access to the previosul unreachable holes.

I then removed the reinforcement fork and doubler plate so that I could countersink the holes on the rear spar flange that have restricted access once these two parts are rivetted in place.

I then deburred as needed and scuffed up the parts lightly in preperation for priming
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W-707G reinforcement fork and W-707D doubler plate ready for match drilling

W-707G reinforcement fork and W-707D doubler plate ready for match drilling

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Microstop countersink edge ground down and smoothed to allow countersinking in close quarters

Microstop countersink edge ground down and smoothed to allow countersinking in close quarters

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Rear spar countersunk in doubler fork area as access is limited once riveted in place.

Rear spar countersunk in doubler fork area as access is limited once riveted in place.

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