- Joined
- Jan 3, 2007
- Messages
- 1,342
- Reaction score
- 607
Hi all. I've been busy making up a centersection tank here. I'm hoping there are no glaring errors...but i'm going to duck my head and show you my work.
I started with a rib pattern and then made my upper and lower skins.
The picture shows the skins with an undersize oak form for the baffles and end-caps.
I made a pattern on deltacad and taped it to aluminum to cut out the blanks. I used a jigsaw..but a bandsaw would be better. I drilled relief holes in each corner before bending.
I bent the flanges 3 sides...then hammered the top curve over the oak form.
Flanges bent....i marked the tank inside and made up all the spanwise baffles.
Next i put some holes in the baffles ...2". There are also areas in the baffle corners where fuel can spill thru.
That done i put in a few clecos to keep things lined up. I used a string across the top baffles for alignment, along with a straight line on the tank bottom and a triangle to stand everything up straight.
The top still fits!
One more picture.
Edited by: bigblackmastiff
I started with a rib pattern and then made my upper and lower skins.
The picture shows the skins with an undersize oak form for the baffles and end-caps.
![20071229_204107_skinplug.jpg](https://proxy.imagearchive.com/29e/29e610e5f86ac4e6f4ce0b15025a5788.jpg)
I made a pattern on deltacad and taped it to aluminum to cut out the blanks. I used a jigsaw..but a bandsaw would be better. I drilled relief holes in each corner before bending.
![20071229_204328_pattblank.jpg](https://proxy.imagearchive.com/88b/88b13f33a1b6805e0c05742a732e192a.jpg)
I bent the flanges 3 sides...then hammered the top curve over the oak form.
![20071229_205104_blockblk.jpg](https://proxy.imagearchive.com/134/134ff0b89a28acb483468a8c6a5acbe6.jpg)
Flanges bent....i marked the tank inside and made up all the spanwise baffles.
Next i put some holes in the baffles ...2". There are also areas in the baffle corners where fuel can spill thru.
That done i put in a few clecos to keep things lined up. I used a string across the top baffles for alignment, along with a straight line on the tank bottom and a triangle to stand everything up straight.
![20071229_205825_opentank.jpg](https://proxy.imagearchive.com/9da/9dad6408a4cc7c0e86d1b926c9a30ead.jpg)
The top still fits!
![20071229_210428_sealed.jpg](https://proxy.imagearchive.com/0a8/0a84b6698654a24ab98251629501be4a.jpg)
One more picture.
Edited by: bigblackmastiff