[Gilles Dutruy]

Hello, first time builder here !

I've been trying to understand how to figure out the rivet orientation (for solid universal rivets) from the RV-15 KAI for a couple hours without much success. I read through VAF and found the general rule:

1. The visible side
2. The side with the thinnest material
3. The side with the easiest access
4. The side that is easiest to drill out later
5. The front or top sides

Question 1: not sure that 1. and 2. should be inverted

In the KAI, there are areas that are hatched (here from flaps assembly) :




Question 2: do the hatched area give the orientation, for example the manufactured head is on the hatched part. or it's just hatched to be easy to show and there is no hidden intention behind ?

Thanks for your feedbacks !

Gilles

 

[Jetmart]

I had the same questions as I saw pictures of builders putting the rivets in different orientations.
It was suggested that orientation on the thinest material is not as critical with pulled rivets.

I do the following:

The side with the thinnest material
The side with the easiest access
The front or top sides

 

[rvbuilder2002]

Hello, first time builder here !

I've been trying to understand how to figure out the rivet orientation (for solid universal rivets) from the RV-15 KAI for a couple hours without much success. I read through VAF and found the general rule:

1. The visible side
2. The side with the thinnest material
3. The side with the easiest access
4. The side that is easiest to drill out later
5. The front or top sides

Question 1: not sure that 1. and 2. should be inverted

In the KAI, there are areas that are hatched (here from flaps assembly) :

View attachment 119183
View attachment 119184

Question 2: do the hatched area give the orientation, for example the manufactured head is on the hatched part. or it's just hatched to be easy to show and there is no hidden intention behind ?

Thanks for your feedbacks !

Gilles

The hatched areas are highlighting the holes that are being riveted that were described in the text on that page.
Often times this will be obvious, but at times holes need to be left open for attaching other parts in later steps.

 

[rocketman1988]

I had the same questions as I saw pictures of builders putting the rivets in different orientations.
It was suggested that orientation on the thinest material is not as critical with pulled rivets.

I do the following:

The side with the thinnest material
The side with the easiest access
The front or top sides

Standard practice is to try and use the manufactured head on the thinnest material, front, or top. That said, for a properly driven solid rivet, it does not matter.

Note that if the plans SPECIFY an orientation, there is a specific reason for it, and it should be complied with.

 

[Gilles Dutruy]

Thanks for your answers. So far I've been looking to a few KAI of the -15 and never found some given orientation.

 

[Alphalpha]

My first priority is access to the various types of riveting processes. If I can back rivet that comes first. Then pneumatic squeeze, hand squeeze and finally buck. In the last, orientation is determined by where the gun will fit and how I can hold that gun. The bucking bar is usually the easiest to get located correctly. And the last of the last is two person riveting which tools will fit where but then I must also decide who has the best skill level for the gun and/or the bucking bar.

 

[CaptPausert]

So rivets are shear fasteners. The head orentation usually does not matter IF the materials being joined are flush. The advantage of using the manufactured head on the thinnest material is when you push down on the rivet head with either the rivet gun or squeezer it helps to push the material togethet and eliminate any gap. If there is a gap between the sheets being joined the rivet can expand between them and that reduces the joint capability. Sometimes you just cant make the rivet head on the thinnest material due to access or if it is a flush rivet due to other structure overlapping. In that case extra care needs to be taken to ensure that the material to be riveted together is in full contact with no gaps.