Rudder (3.5 hrs )
Step 1 on page 7-10. Inserted spar assly into rudder skins & riveted into shear webs using LP4-3 blind rivets (18).
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Blind rivets at shear webs. Univ heads from prior assl'y at hinge doublers, w/ nutplate for rod end bearing (hinge) |
Step 2: Added Attach Strip to bottom rib of LH skin. Really difficult to get to shop head near aft end. So, per instructions, spread TE skins slightly. Unfortunately, these were just "adhered" from prior steps via 3M UHB tape...but did separate, and appear to re-attach. My 1/4" thk small bucking bar (even ground down to thinner corner) barely fit and was NOT sufficient to swell shop ends of 3/32 rivets - even with tungsten bucking bar back up. Eventually spread enough to use Main Squeeze with thin set. Whew...done, but a real challenge.
Step 3: More blind riveting along bottom rib. Also showing in pic above.
Step 4: Rudder Horn brace installed. Satisfying - since I could access all rivets using Main Squeeze tool.
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Long set in Main Squeeze just barely enabled access to set Univ head rivets. |
Step 5: Remaining 3/32 rivets at edges along bottom done. Only need to complete along Spar before moving on to next page.
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