Build Log for Sonex 0849B
Aligned upper longeron to LH aft side skin per plans and pilot drilled. Longeron set back 1/32″ from forward skin bend line and flush with top of skin. Lower longeron aligned along bottom edge of LH aft side skin using…
Creation of -03R lower longeron from 1x1x0.125 (120) angle stock Hours Worked: 0.84
Cut -09 fairlead mount blocks from 6″ x 12″ phenolic sheet with band saw. Drilled holes in mount blocks, counterbored rivet holes, and up drilled center hole for cable fairleads. Test fit fairleads. Will hold off on installing fairleads until…
Creation of -02L/R and -03L Longerons. Cut stock with band saw and notched forward ends with rotary tool Hours Worked: 1.03
Creation of -01L/R aft fuselage skins from F26-01 skin stock. Cuts followed SXB plans to account for flap drive holes. Simple hole cut in -01L and larger hole cut in -01R for flap drive tube. Rear access holes and rudder…
Creation of vertical channels (other than -01L/R per conversion plans). Created templates for Detail A and B from .022 scrap stock to speed up process. Drilled 3/4″ hole in -02R vertical channel in the wrong location and will order replacement…
After completion of the drive rib assemblies, reclecoed assemblies together and completed final riveting. Flaps installed onto wings and appear to fit well. Hours Worked: 1.87
Up drilled drive plate attach holes to 1/4″ for AN4 hardware and clecoed AN366F-428A nutplates into place. Disassembled both drive plate ribs, deburred, and riveted assemblies together Hours Worked: 0.92
Disassembled both LH and RH flap assemblies and deburred all parts. Cut out holes in -01L/R flap skin for flap tie rod clearance and reassembled flap assemblies with clecoes. Scotchbrited and acetoned all parts. Both assemblies ready for final riveting…
Laid out flap rib holes on RH flap skin, center punched, and drilled. Bottom side skin cutout for flap pushrod marked. Lined up ribs under flap skin and began pilot drilling ribs starting with top side, upper hole on forward…
Pilot drilled and up drilled -04 flap drive plates to -02 and -03 flap ribs. Countersunk flap drive plates for CCC-44 rivets. Deburred assemblies and clecoed together pending receipt of nut plates. Cut -06L/R hinge halves from -P3 piano hinge…
After discussion with Sonex tech support, decided to scrap previously built flaps due to notch-out of skin on forward edge. Trimmed and deburred Z02-02 flap skin stock per plans to create -01L/R flap skins. Notches for flap pushrod yet to…