[Wing] fuselage jig

[Perry Yaremchuk]

Hey, isn't it great to get 'the final word' from someone whose built a few 
RV's on how to do something!
,...but being a 'not-yet-builder', I'm confused!!
If everything is pre-punched and precision tooled to millionths of an inch, 
why do I constantly hear the word 'jig' . 
I understand there are lots of jigs available to rent, borrow or buy, but 
are they absolutely necessary to get a straight airframe? What if you get a 
quick-build kit?...does this really ensure correct alignment of the wing & 
fuselage?

thanks,

Perry - RV-9 wannabe

On 6/10/05, Norman Younie <rv6capt at pacificcoast.net> wrote:
> 
> Mount the longerons in place starting at the fire wall, mount all the
> bulk heads in place and the side skins. Then cut them to the proper
> length at the tail end at the end of the last bulk head flange. This can
> all be done after the skins are clecoed in place. Don't be in a big
> hurry to cut them till all of the fuseage has been fitted together.
> 
> Norman RV-6, RV-7, RV-7, F1 Rocket
> 
> pat morency wrote:
> 
> >Just laid out the fuse jig, leveled, centered, bent
> >the longerons, attached the firewall F601 and the aft
> >F612 bulkhead. The Longerons appear to be too long by
> >about 2 inches depending where they are supposed to
> >end at the F612 (end of the first flange or end of the
> >airplane).
> >What is the best order of progress at this point? Fit
> >the F604 to F611 bulkheads and then cut the Longerons
> >or set the longerons at a specified distance from the
> >center line and then hope the bulkheads fit in the
> >opening at that station?
> >
> >Regards,
> >Pat in Calgary
> >
> >
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