Brief Description: Updrilled and reamed LG and fuselage holes to AN5
Updrilled and reamed the LG and fuselage holes to AN5 size. Had planned to updrill the initial 1/8" holes incrementally to 19/64" and then ream to 5/16". Also planned to use a wood block (2 by 4) with holes drilled on drill press to keep the hand drill perpendicular when drilling the bolt holes. Updrilling incrementally did NOT WORK. The bit would almost immediately dig in and grab, stalling the hand drill. With some experimentation determined the best approach was to go directly from the 1/8" hole to a 19/64" hole and then ream to 5/16", no incremental drilling. I did use the 2 by 4 as a vertical guide which worked well. I used a couple long clecoes to hold the gear leg in place when drilling to the fuselage bottom, also inserted AN5 bolts as I went to keep everything aligned. So, got all 10 holes updrilled to AN5 bolt sizes and everything looks good.
Decided rather than use washers between the gear leg and fuselage bottom, I would use flush rivets on the fuselage bottom where the gear leg is bolted on. So, I ciuntersunk the angle stringers and cross braces and dimpled the skin.Also deburred all LG holes.
Gear leg clecoed to fuselage underside.
Using wood block to keep drill perpendicular
Angles countersunk for skin dimples & flush rivets
