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Right Tank is Getting There

December 3, 2011

And only one remains

All but the last rib is in place and ready to go.  The last rib is the most complex.  The ribs you see here are pretty much the same.  You butter the top and bottom with proseal and stick them in place, cleco them and rivet.  I usually let 30 minutes or so go by before riveting.  Supposedly, less proseal will squeeze out from under the flange when you rivet.  When I do a pressure test, that will be the real test. I’d like to say I’m confident about that test, but I’m really not sure what to expect.

The riveting process takes about an hour per rib.  I get Michelle to help me.  She rivets, I buck.  If I buck Im the one getting proseal all over me.  Drilling bad rivets out is a mess.  You get flakes of aluminum all over the place.  It gets mixed in with the wet proseal.  I hope thats not going to be an issue.

One of the other things I’m doing with my tanks is I’ve decided to install a flop tube in my tanks (picture coming later).  The flop tube allows you to perform neg-G maneuvers and still be able to pick up fuel.  As the name implies, it is a tube that can flop from the bottom to the top of your tank depending on your attitude.  If you didn’t have this, then you are limited in what aerobatic maneuvers you can do.  I don’t know that I’m going to do any aerobatics, but I”d like my plane to be able to if I want.  There are other modifications you need to make too, but this is the only one that is very difficult to do retrofit later.

One of the anti bind solutions for the flop tube

Riveted in and prosealed.

I may have to alter this.  I’m not sure I’m 100% confident that something wont bind.  When I get this last rib in place, I’ll take some better shots that show what the flop tube does.


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