Tubing Thickness

MikeB · Post by **MikeB** » Tue Jun 27, 2006 09:47

Does anyone know what the thickness of Aeronca (7AC/L16) tubing is?
I need to weld a split tube over a slightly bent vertical one above the right
landing gear on my L16 project. According to 43.13, if I remember correctly, the split tube should be of equal or greater thickness as the original. This appears to be a weak member in the Champ air frame as I've seen several bent from hard landings. On the Champ I previously rebuilt someone had also welded in a split tube.

Anyway, I need to know the present tube thickness so I can order the correct size.

Thanks,
Mike Berg

grady · Post by **grady** » Tue Jun 27, 2006 10:05

There used to be a L16 manual on the web with tubing sizes in it.
I can try to send a pdf file to you directly, if you can handle large (Mb+ size) email attachments. Let me know.

Grady

MikeB · Post by **MikeB** » Tue Jun 27, 2006 12:40

Come to think of it, I didn't look in the L16 manual and parts book, just in the 7AC parts book

. I'll take a look in the L16 manual. Seems from what I remember that the tubing is around .035, but I wanted to be sure before I order the tubing.

MikeB · Post by **MikeB** » Tue Jun 27, 2006 17:18

Had a nice phone call from Bill Pancake and he informed me that the vertical tube above the right landing gear is .058.

Thanks Bill!!