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Alteration 15.01 Wing Skin Stiffeners
15.01  15.02  
Page 15.01 NOTE: Any alteration will require it to be registered as Experimental-Amateur-Built  E-A-B
Parts
1 W-1210-R Rib  
1 W-1210-L Rib  
1 4" X 24".025 T2024  
 
     

This Alteration is to add a support brace to the W-1204B wing skin

Step 01: Take two wing ribs one right and one left and lay out and drill # 30 for a support angle.


Note: Space the holes 5/8" off the top flange and to miss the stiffeners formed in the ribs.           
Step 02: Match drill a 2" .025 2024 T3 aluminum strip to the flat side of each rib as shown.

Note: drill the holes before cutting the ribs to keep the proper profile at the top of the ribs.
Step 03: Cut the ribs in a straght line at the top of the holes in the ribs as shown.
Then trim the aluminum strip to fit and bend a 7/16" 90° flange at the bottom edge.

Deburr,scuff and prime
 
Step 04: Rivet the new ribs together, one left and one right.

Note: 2.2 oz. each
Step 05: Test fit the new Ribs.
Step:06  
Page 15.01 Wing skin stiffeners
15.01  15.02  
01: Flush Rivets 02: Stab Fairings 03: Static Air / Pitot 04: Canopy Lock / Lift  05: Battery Location 06: Fuel Tanks
07: Rear Windows 08: Engine 09: Seat Adjustment 10: Seat Brace 11: Brake System 12: Electric Flaps
13: Rudder Trim 14: Tailcone Fairing 15: Wing Skin Stiffeners 16: Wing Tip Lights 17: Rear Baggage 18: Tailcone Camera
19: Tailcone Stiffeners 20: Tie Down Rings 22: Vent Door Knobs      
           
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