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  #1  
Old 04-11-2018, 04:46 PM
RABauer RABauer is offline
 
Join Date: Mar 2018
Location: Knoxville, TN
Posts: 5
Default Fitting HS-609PP to HS-603PP

Well I have a new guy question: has anyone seen the HS-609PP reinforcement bars lay in the HS-603PP rear spar with little to no radiusing to accommodate the bend in the spar flange?

Iíve just started working on my horizontal stab and have run some scotchbrite over the -609 parts to get the tooling marks out and give it the satin finish the plans call for. Iíve also broken the edges and radiused the ends to knock down the corners but it seems my -609s will lay flat against the spar without any shaping done to accommodate the spar flange. I have them currently clecoíd together with a cleco in every third or fourth hole and they seem to lay flat with no major effort needed to cleco the assembly (other than the hole still being undersized since I havenít drilled anything yet).

Iím fully adhearing to the adage ĎI donít know what I donít know,í but it seems to read to me as an as needed step to achieve a flat mating while maintaining hole alignment. Is there something really obvious I overlooked?
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  #2  
Old 04-11-2018, 05:25 PM
Mlidzct Mlidzct is offline
 
Join Date: Nov 2016
Location: Southington, Ct
Posts: 78
Default

Mine didnt need anything extra beyond the edge rounding per the construction manual. Just look closely at the area at the center where the bars are the widest. As long as the bars are not digging into the bend radius in the spar channel your good to go.
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  #3  
Old 04-11-2018, 07:02 PM
RABauer RABauer is offline
 
Join Date: Mar 2018
Location: Knoxville, TN
Posts: 5
Default

Great, thatís kinda where I was focusing as that area would pose the most potential for interference with the flange. It seems on mine the edges of the -609s sit just before the start of the bend for the flange.

Thanks for the input, much appreciated
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  #4  
Old 04-11-2018, 07:32 PM
ctennis ctennis is offline
 
Join Date: Aug 2014
Location: Columbus, IN
Posts: 93
Default

Yeah donít be too worried when you come across things like this. There are many places where Vans hasnít updated the instructions and drawings even though they may have improved the supplied parts. The VS in particular calls out for cutting lightening holes in the doubler, but the supplied doublers already have them cut out. Youíll find quite a few irregularities as time goes on.
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