Jonnyb
Well Known Member
Hoping some one can help or offer reassurance.
I’m just starting out building an RV-8, and am having some issues surrounding edge distance on the HS-00003 Spar Doubler.
So standard edge distance is 2x the diameter of the rivet.
I have measured out the attach holes for the HS-702, HS-814-1 HS-810-1, HS-00003, and the HS-00005 as per Detail DD on drawing 3. However this has bought me up short on edge distance. On a previous matter with edge distance in this area Vans pointed me towards the edge distance called out in the SB (SB14-01-31) specifically page 21, and it states “The minimum allowable spar doubler edge distance is shown in Figure 14” Figure 14 shows the distance as 5/32”
The problem I have is that figure 14 is talking about the outboard most hole of the doubler, and my issue is the top attach hole for all the parts stated above.
Now I have more than the 5/32” stated in the SB but not the 1/4” standard. I would email Vans but they are all at EAA until 7/31, so I thought I would throw it out to you guys to see what you think?
What I should say is that my spar doubler, with all the holes drilled, looks exactly like the spar doubler on page 21 of the SB.
I’m just starting out building an RV-8, and am having some issues surrounding edge distance on the HS-00003 Spar Doubler.
So standard edge distance is 2x the diameter of the rivet.
I have measured out the attach holes for the HS-702, HS-814-1 HS-810-1, HS-00003, and the HS-00005 as per Detail DD on drawing 3. However this has bought me up short on edge distance. On a previous matter with edge distance in this area Vans pointed me towards the edge distance called out in the SB (SB14-01-31) specifically page 21, and it states “The minimum allowable spar doubler edge distance is shown in Figure 14” Figure 14 shows the distance as 5/32”
The problem I have is that figure 14 is talking about the outboard most hole of the doubler, and my issue is the top attach hole for all the parts stated above.
Now I have more than the 5/32” stated in the SB but not the 1/4” standard. I would email Vans but they are all at EAA until 7/31, so I thought I would throw it out to you guys to see what you think?
What I should say is that my spar doubler, with all the holes drilled, looks exactly like the spar doubler on page 21 of the SB.
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