Horizontal Stabilizer December 1

Step 1-Deburr the edges ( including lightening holes) of all aluminum parts shown in figure 1.

Step 2- Cleco the HS Rear Spar doubler to the HS-10003 Rear Spar as shown in blowup of Figure 1

(note we were out of batteries so some of the pictures did not get taken during the steps)

There are four holes in the spar web not present in the doubler. Match Drill these holes (shown in the blowup) into the doubler with a #30 drill. Be sure to drill perpendicular to the web. Except for the holes indicated in the blow up final drill all other 1/8" holes in common to the doubler and spar using a #30 drill.

Machine countersink the two indicated holes for 1/8" flush rivets. Final drill the four 3/16" holes (two above and two below the holes just countersunk) with a #12 drill. Drill from the spar into the doubler.

Step 3- Final-drill the 3/16" hole in each of the eight HS-912 Hinge Brackets using a #12 drill.

Cleco the hinge brackets to the HS-1003 Rear Spar as shown in the figure. Final-Drill the holes of the brackets and spar with a #30 drill.

Step 4- Remove all the parts from the spar (marking them as they are removed) deburr the holes, then prime the aluminum parts if desired. Scuff the powder coating on the hinge brackets if you plan on painting them when the completed airplane is painted. (Note on the next step I have not primed the parts yet as the weather has been to cold to paint, so I am going to rivet the doubler on and prime the all the parts on both spars at once)

Step 5- Rivet the HS-906 Rear Spar Doubler to the spar using the rivets called out in the holes indicated (tape over the holes as a reminder)

Step 6- Rivet the HS-912 Hinge bracket to the spar using the rivets shown in the left blowup. Place the manufactured head of the rivets on the bracket. (Note Rivets called are AN470AD4-5)

Used squeezer to do rivets

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