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More Nose Rib Riveting

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jkafka(at)trojanuv.com
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Posted: Tue Sep 11, 2007 9:55 am Post subject: More Nose Rib Riveting

List,  

I am in the process of locating the 601 XL nose ribs on the rib angles, and was pleased to receive the recent advice about using two strips to simulate the skins before I completed *all* the ribs. (Inboard four are done, but most of the outboard ones are left. I expect minor flange adjustments will also help).  

A separate question: I am having difficulty getting my rivet puller into position to pull the A5 rivets at the ends of the rib angle for NR #5 (older plans; this is the first rib past the front spar caps). The spar cap is in the way and will keep the puller from getting fully horizontal. I fear the rivet will not be lying quite flat when the time comes.  

Since I am plans building I spotted a similar issue for the inboard ribs early and decided to rivet the ribs to those angles before riveting the angles to the spar web (all the holes are done. I don’t have that option for this rib; (I doubt I could reliably replace the solid rivets at the ends of the angle once the rib was in place).  

Any suggestions?  

Jeff Kafka  

601XL Plans  

Tail, Flaps, Ailerons, Spars Done  

Working on Ribs & Assembling Wings   

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Terry Phillips

Joined: 11 Jan 2006
Posts: 346
Location: Corvallis, MT

Posted: Tue Sep 11, 2007 10:41 am Post subject: More Nose Rib Riveting

Jeff



I had a clearance problem with 4 rivets on my horizontal stabilizer. The 

diameter of the nose on my HF hydraulic-pneumatic riveter made it 

impossible to hold the riveter normal to the surface. I found that my 

hand riveter (also from HF) required less clearance and would work. So, 

I mailed the hand riveter A4 and A5 rivet heads off to Zenith to be 

machined and they were back in less than a week (great service there, 

ZAC!) The geometry of a hand riveter is a lot different from the 

pneumatic riveter, and may provide sufficient clearance for your situation.



Terry

Kafka, Jeff wrote:

 	  Quote: 	
		  

 List,



 I am in the process of locating the 601 XL nose ribs on the rib 

 angles, and was pleased to receive the recent advice about using two 

 strips to simulate the skins before I completed **all** the ribs. 

 (Inboard four are done, but most of the outboard ones are left. I 

 expect minor flange adjustments will also help).



 A separate question: I am having difficulty getting my rivet puller 

 into position to pull the A5 rivets at the ends of the rib angle for 

 NR #5 (older plans; this is the first rib past the front spar caps). 

 The spar cap is in the way and will keep the puller from getting fully 

 horizontal. I fear the rivet will not be lying quite flat when the 

 time comes.



 Since I am plans building I spotted a similar issue for the inboard 

 ribs early and decided to rivet the ribs to those angles before 

 riveting the angles to the spar web (all the holes are done. I don’t 

 have that option for this rib; (I doubt I could reliably replace the 

 solid rivets at the ends of the angle once the rib was in place).



 Any suggestions?



 ***Jeff Kafka*



 *601XL Plans*



 *Tail, Flaps, Ailerons, Spars Done*



 *Working on Ribs & Assembling Wings *

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_________________
Terry Phillips
Corvallis, MT
ttp44<at>rkymtn.net
Zenith 601XL/Jab 3300 slow build kit - Tail feathers done; working on the wings.

psm(at)ATT.NET
Guest

Posted: Tue Sep 11, 2007 4:24 pm Post subject: More Nose Rib Riveting

Hi Jeff,



 I modified a rivet puller nose piece by grinding the face at about a 30 degree angle and then grinding the concave shape unique to CH's plans.  I use this in a hand puller in the few places where a normal riveter won't even think about fitting.  There are several more places where this came in handy besides the nose ribs.  I only did this for A5 rivets and that seems to be enough.



 With the slanted nose piece, the rivet stem gets bent into the riveter while it is pulled, but it all works out fine.  At least it does after a few practice rivets.



 Good luck,



 Paul

 XL fuselage



 

 At 10:55 AM 9/11/2007, you wrote:



 [quote]List,

 

 I am in the process of locating the 601 XL nose ribs on the rib angles, and was pleased to receive the recent advice about using two strips to simulate the skins before I completed *all* the ribs. (Inboard four are done, but most of the outboard ones are left. I expect minor flange adjustments will also help).

 

 A separate question: I am having difficulty getting my rivet puller into position to pull the A5 rivets at the ends of the rib angle for NR #5 (older plans; this is the first rib past the front spar caps). The spar cap is in the way and will keep the puller from getting fully horizontal. I fear the rivet will not be lying quite flat when the time comes.

 

 Since I am plans building I spotted a similar issue for the inboard ribs early and decided to rivet the ribs to those angles before riveting the angles to the spar web (all the holes are done. I don’t have that option for this rib; (I doubt I could reliably replace the solid rivets at the ends of the angle once the rib was in place).

 

 Any suggestions?

 

 Jeff Kafka

 

 601XL Plans

 

 Tail, Flaps, Ailerons, Spars Done

 

 Working on Ribs & Assembling Wings 

 [b]

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