Sect 9-16, Step 3: Deburred edges, Final Drilled (reamed) then deburred all #30 holes on 4 E910 Hinge Reinforcement Plates. Primed these prior to riveting to L & R Front Spars. Added 4 K1000-6 nutplates that will anchor swivel bolts acting as hinges between Elevator and Horiz Stab. Instructions spec'd 470 4-6, but first one had to be replaced after it curled as I began to squeeze. Closer examine with gauge showed too long ! Checked alternate -5 rivets, but gauge showed too short. So I simply hand ground eight 470 4-6 rivets by just .5 to -5.5 lengths. These were perfect.
Front Spars w/ Hinge Reinforcement Plates and nutplates. |
Jumped to Sect 9-17, Step 3 to rivet Shear Clips and Gussets to LH and RH Rear Spars, and cleco'd 12 Ribs ...to complete next session. Gotta go mow since grass is growing like crazy this spring.
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