Getting ready to rivet the Horizontal stabilizer together today. The attach brackets are already riveted to the spar. Out of curiosity I placed the front spar with attach brackets on a flat cast iron table saw top and measured the distance from the ends of the table saw top up to the bottom of the spar to see how symmetrical the measurements are. Over a distance of 5.5' I am 3/16ths lower on one side. I figure over the entire horizontal stabilizer length it would be closer to 1/2-3/4" lower.
So my concern is the discrepancy is due to a wandering drill bit that caused one of the attach bracket alignment holes to be slightly higher than what was called for. Or it could also be that the spar itself has a bow or sag and will be corrected when everything else is riveted together....
Would you?
1. Build on and adjust for it later on down the road. (not sure how)
2. Drill out the attach brackets, remake them and hope the new ones align better
So my concern is the discrepancy is due to a wandering drill bit that caused one of the attach bracket alignment holes to be slightly higher than what was called for. Or it could also be that the spar itself has a bow or sag and will be corrected when everything else is riveted together....
Would you?
1. Build on and adjust for it later on down the road. (not sure how)
2. Drill out the attach brackets, remake them and hope the new ones align better