[Wing] fuselage jig

[Norman Younie]

Jigs are required for all of the RV's prior to the pre-punched days, 
with  the pre-punched RV's no jigs are required. The logerons are not 
pre-punched.

Norman

Perry Yaremchuk wrote:

>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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>>>      
>>>
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>>    
>>
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>