Hi all,
I emailed the following question to Van's:
I am working on the wings for my RV8A. I decided to use CherryMax rivets to attach some of the more difficult to reach Leading Edge Ribs to the Main Spar. Before thinking (I guess you hear that a lot) I used -4?s on the third rib in from the wing tip. I thought that is what I used on the other wing. However, now I realize that I used an LP4-3 on the other wing and a -4 CherryMax where the .125 doubler is on the main spar.
So, my question is? Do I need to drill out the -4?s from the third rib in from the wing tip (no doubler)? The minimum grip length specified for a CherryMax -4 is .188?.
Here was the reply I got:
I wasn't aware the blind rivets had a minimum grip length, only a
maximum. I would say that if the rivets are not tight, then drill
them out. You might try turning them with pliers to check.
We have both LP4-3 and LP4-4 rivets available and they are a lot
less expensive than Cherry Max rivets.
Does anyone out there have any more to add? I can't reach the "shop" side of the rivets to try and wiggle them. I know I am below the minimum grip length. But I am not sure if I would do more harm than good if I try to drill them out.
Thanks,
I emailed the following question to Van's:
I am working on the wings for my RV8A. I decided to use CherryMax rivets to attach some of the more difficult to reach Leading Edge Ribs to the Main Spar. Before thinking (I guess you hear that a lot) I used -4?s on the third rib in from the wing tip. I thought that is what I used on the other wing. However, now I realize that I used an LP4-3 on the other wing and a -4 CherryMax where the .125 doubler is on the main spar.
So, my question is? Do I need to drill out the -4?s from the third rib in from the wing tip (no doubler)? The minimum grip length specified for a CherryMax -4 is .188?.
Here was the reply I got:
I wasn't aware the blind rivets had a minimum grip length, only a
maximum. I would say that if the rivets are not tight, then drill
them out. You might try turning them with pliers to check.
We have both LP4-3 and LP4-4 rivets available and they are a lot
less expensive than Cherry Max rivets.
Does anyone out there have any more to add? I can't reach the "shop" side of the rivets to try and wiggle them. I know I am below the minimum grip length. But I am not sure if I would do more harm than good if I try to drill them out.
Thanks,