View source for SECTION 13: MAIN SPAR

=== Build Instruction Updates ===
* N/A
Check for more recent updates [https://www.vansaircraft.com/service-information-and-revisions/?aircraft=rv-10&doctype=revisions-changes&sort=date here]

==== Page 13-2 ====
* Figure 1 shows an "extra" hole on the flange. It is not used anywhere, does not need countersinking.<br>[[File:2022-08-05 15-56-39.jpg|500x500px]]
* Step 7: Study figure 2 which points out that the long stiffeners align at the outboard end while the short stiffeners align at the inboard end.
* Step 8: See this [https://www.facebook.com/groups/vansrv10/posts/5941123952675321 FB thread] regarding how to manage the imperfect overlay of the long and short stiffener.
** For the 3 areas not to match drill: Ignore 13-2 Figure 2 (very unclear), they are clearly marked in 13-5 Figure 2.
'''Page 13-3'''

* Step 2:  "Machine countersink those rib to spar flange attach rivet holes that are in line with the nutplate attach rivet holes and are inboard of the most outboard fuel tank attach nutplate."
** See [https://youtu.be/-fJUMhbf7zY?si=izdFC36iiTjpQI1A&t=685 Plane Lady's youtube video] explaining which holes (starting at 11:25)
** She diagrams the holes at [https://youtu.be/-fJUMhbf7zY?si=iNIxa28amTkntwUa&t=903 15:00 in the video].  Essentially, they are the holes between the fuel tank nut plates (forward row nut plates) that would be covered by the fuel tank flange.

==== Page 13-4 ====
* Step 4 has you installing AN426AD4-6 rivets, but the rivets are not part of the SB kit (as of 3/2022).
**Some builders indicate that the rivets are included in the SB kits.
* Step 6, check this [https://www.facebook.com/groups/vansrv10/posts/6740359736085068 FB thread] on the tie down bracket and a potential gap between the skin and the bracket.

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