Wing Nose Rib quesion

[YME]

Started building the Left Wing per plans and have a question about the inner most Nose Rib.

During construction of the Nose Ribs it calls out to add a Doubler and Nutplate to W-1208-R-1 and W-1208-L-1 Nose Ribs (page 15-02, fig 4)) which are Trimmed Fwd and Aft and are the inner most Nose Ribs


Attaching the Nose Ribs, page 15-05, fig 1, indicates that W-1208-R-1 has 2 NutPlates attached but only shows one.


Looking at the assembly of the Right Wing, page 15-07, fig 1, it indicates that Nose Rib W-1208-L-1 (trimmed) has 3 NutPlates attached but we only added 1 during construction along with the Doubler.



I am assuming these are typos but wanted to ask to make sure somewhere else in the plans other NutPlates are not needed for something.

 

[Fisherpd]

I remember finding that tissue with the plans as well. The single nut plate on the root ribs is used for a grounding screw. The 2 nut plates are used on the rib that holds the stall vane. There are only 2 sets of holes on the ribs - so no rib gets 3 nut plates.

 

[YME]

I remember finding that tissue with the plans as well. The single nut plate on the root ribs is used for a grounding screw. The 2 nut plates are used on the rib that holds the stall vane. There are only 2 sets of holes on the ribs - so no rib gets 3 nut plates.

Thanks for the reply. It seems all the Nose Ribs have 3 possible places for NutPlates as shown (circled) in the attached pic. Just wanted to make sure I was not missing something. Thanks again.

---

 

[CTCole]

Page 15-02 Fig 4: Okay.
Page 15-05 Fig 1: While the figure annotation says "W-1208-R FWD AND AFT TRIMMED WITH 2 ATTACHED NUTPLATES", the figure (including the close-up circle) shows only 1 nutplate. That is correct -- there's no use for the second nutplate. The only rib with 2 nutplates goes in the middle of the Left wing (rib #8).
Page 15-07 Fig 1: Figure annotation says ".... WITH 3 ATTACHED NUTPLATES". Should be only 1 nutplate (and a doubler) on this first rib of the right wing. See page 15-02 Step 9.

What FisherPD says is correct.

 

[YME]

Page 15-02 Fig 4: Okay.
Page 15-05 Fig 1: While the figure annotation says "W-1208-R FWD AND AFT TRIMMED WITH 2 ATTACHED NUTPLATES", the figure (including the close-up circle) shows only 1 nutplate. That is correct -- there's no use for the second nutplate. The only rib with 2 nutplates goes in the middle of the Left wing (rib #8).
Page 15-07 Fig 1: Figure annotation says ".... WITH 3 ATTACHED NUTPLATES". Should be only 1 nutplate (and a doubler) on this first rib of the right wing. See page 15-02 Step 9.

What FisherPD says is correct.

Thanks Chris...

 

[Fisherpd]

Caught me _ I was just looking at the nose of the nose ribs when I counted 2 sets of holes I don't see or remember anything that goes in the set of holes aft near the large hole.

 

[MMiller]

Those nut plates are artifacts from original wing electrical terminal bracket. This image is from section 16-4, revision 0, 09/15/2009.

 

[CTCole]

Those nut plates are artifacts from original wing electrical terminal bracket. This image is from section 16-4, revision 0, 09/15/2009.

Thanks for solving the mystery!

 

[YME]

Thanks for solving the mystery!

For what it is worth, I am going to call Van's and let them know to update the Plans whenever.