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Wings!
May 10, 2008 22:33:04 GMT 12
Post by Bruce on May 10, 2008 22:33:04 GMT 12
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Wings!
May 10, 2008 22:40:26 GMT 12
Post by Dave Homewood on May 10, 2008 22:40:26 GMT 12
Awesome Bruce, they look superb. Well done on another milestone.
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Wings!
May 11, 2008 16:35:50 GMT 12
Post by stu on May 11, 2008 16:35:50 GMT 12
Looking good Bruce, first flight in no time now. Don't tidy up your workshop, you'll never find anything afterwards ... trust me  Cheers, Stu. |
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Wings!
May 14, 2008 22:28:34 GMT 12
Post by Bruce on May 14, 2008 22:28:34 GMT 12
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Wings!
May 14, 2008 22:55:50 GMT 12
Post by Dave Homewood on May 14, 2008 22:55:50 GMT 12
Super!
Now all you need is the donk on the front!
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Wings!
May 15, 2008 10:54:33 GMT 12
Post by flyjoe180 on May 15, 2008 10:54:33 GMT 12
Looking nice.
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Wings!
May 15, 2008 12:40:25 GMT 12
Post by stu on May 15, 2008 12:40:25 GMT 12
It's looking good Bruce.
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Wings!
May 15, 2008 23:05:58 GMT 12
Post by yak2 on May 15, 2008 23:05:58 GMT 12
Great effort Bruce. It looks a scaled down version of my old AOP9. Are the wings rib stitched or did you use some other technique?
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Wings!
May 15, 2008 23:34:43 GMT 12
Post by Bruce on May 15, 2008 23:34:43 GMT 12
The fabric on the wings is rivetted on to the cap strips using wide flange rivets and aluminium washers over the reinforcing tapes. The tail feathers however are rib stitched as the rib extrusions are a lot narrower. I used the "Polyfibre" manual's modified Seine knot, which puts the knot and the running stitch inside the surface, which makes a neater finish than the old style knot in AC43. With the number of fastenings required on the wing it would have been a major effort to stitch it all! As the Wing ribs are extruded channel its very practical to use the rivet technique instead (this is a technique approved for certificated aircraft IAW the PolyFiber Manual). On some wooden aircraft with wider rib caps, there is a current trend to rely on the glue and not to stitch, but the bond strength of gluing alone on 1/2" wide Aluminium (even etch primed) is not sufficient. The other advantage of rivetting is that there are no rib lacing cords inside the wing, allowing excellent access for the various control cables.
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Wings!
May 16, 2008 9:27:17 GMT 12
Post by yak2 on May 16, 2008 9:27:17 GMT 12
Sure beats stitching . Far quicker and produces a neater result. Anyone glueing polyfibre to ribs as an alternative to a mechanical bond is asking for trouble IMO. Unfortunately the four wings and all the tailfeathers on my project need to be done the traditional way. A prospect I am not looking forward to. The AOP9 utilised 'stringing wire' which was retained in a slot on the rib flange. Brilliant system, and only took half a day per wing to complete.
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