Saturday, September 20, 2008
Started Right Wing Tip Closeout
Spent the majority of today prepping the skins and all other components required to close the left and right wingtips. This included removing all machine marks, sanding and deburring all edges, and then priming all of the flanges. I am priming all of the mating surfaces. This took the majority of the day's time but had time to begin right wingtip closeout. Bent the handhold per the instructions and attached it to the main spar. Then attached the rib tip to the rear spar. The wing tip aft skin followed. Then the forward skin. The bottom surface of the rear spar assembly was trimmed to allow the installation of the aft wing tip rib. I used a scotchbrite wheel in the die grinder and removed a bit of the bottom surface of the rear spar at the location of the tip rib. This allowed the tip rib to slide on the rear spar without any interference. Then started to flute the forward wing tip rib. It takes, what I would call some severe flutes to get it to align correctly. Takes a bit fluting, fitting, more fluting, fitting, etc. Think I attached and removed the forward wing tip rib about 20-30 times. Completed the day's work by building the bending tool that will be used on the W-1204D-R wing tip closeout.
Time - 7 hours Total - 130 hours