Craw
Active Member
Good Afternoon All,
I have reached the phase in my RV-7A Quick Build kit where it was necessary to set the wing incidence. In doing so it has become apparent that I have a misalignment between the following components:
1. W-707G rear wing spar & W-707D rear spar doubler and the gap between the fuselage F-605C Bar doubler & F-705B centre section. I have included dimensions of the distance from the rear of the W-706 Main Wing spar to the forward portion of the F-705B Centre Section Bar in the diagram (figurer 1-1) below as well as some images of the problem.
Figurer 1-1
https://postimg.cc/Z937s5Bk
https://postimg.cc/75hj94nD
https://postimg.cc/dLLzmvBF
I loosened the bolt holding the spacer between the centre bar and the doubler on the left (starboard) side and, although I was able to force the rear spar into position, the rear spar was bent forward and the centre section bar (F-705C) was bent slightly aft. There was a great deal of pressure between the two. I was unable to force the rear spar of the right (port) into gap between the F-705B centre bar and the F605-C doubler.
2. Furthermore, the right side of the fuselage rear spar appears to be twisted by 1/16” as shown in the diagram (Figure 2-1)below.
Figure 2-1
https://postimg.cc/18LjtmBW
3. I have also noted that the rivets in the F-705D bulkheads appear to be slanted as the top of the rivet line are very close to the web of the F-705D where as near the bottom they appear to be in the middle of the bulkhead. Please refer to the diagram and image below:
https://postimg.cc/v4qGSVQ4
https://postimg.cc/qgxqxgC3
I have e-mailed Vans regarding this issue but am curious to know if other Quick Build builders have encountered this issue.
Regards,
Phil
I have reached the phase in my RV-7A Quick Build kit where it was necessary to set the wing incidence. In doing so it has become apparent that I have a misalignment between the following components:
1. W-707G rear wing spar & W-707D rear spar doubler and the gap between the fuselage F-605C Bar doubler & F-705B centre section. I have included dimensions of the distance from the rear of the W-706 Main Wing spar to the forward portion of the F-705B Centre Section Bar in the diagram (figurer 1-1) below as well as some images of the problem.
Figurer 1-1
https://postimg.cc/Z937s5Bk
https://postimg.cc/75hj94nD
https://postimg.cc/dLLzmvBF
I loosened the bolt holding the spacer between the centre bar and the doubler on the left (starboard) side and, although I was able to force the rear spar into position, the rear spar was bent forward and the centre section bar (F-705C) was bent slightly aft. There was a great deal of pressure between the two. I was unable to force the rear spar of the right (port) into gap between the F-705B centre bar and the F605-C doubler.
2. Furthermore, the right side of the fuselage rear spar appears to be twisted by 1/16” as shown in the diagram (Figure 2-1)below.
Figure 2-1
https://postimg.cc/18LjtmBW
3. I have also noted that the rivets in the F-705D bulkheads appear to be slanted as the top of the rivet line are very close to the web of the F-705D where as near the bottom they appear to be in the middle of the bulkhead. Please refer to the diagram and image below:
https://postimg.cc/v4qGSVQ4
https://postimg.cc/qgxqxgC3
I have e-mailed Vans regarding this issue but am curious to know if other Quick Build builders have encountered this issue.
Regards,
Phil
Last edited: