Frame Structure Question

[Zardoz]

Hi folks,

Is there a structural frame member (horizontal) running under the belly band and continuously along the entire radius of Airstreams? I’m considering mounting a detachable antenna mast support such as this: https://www.google.com/search?q=tv+a...8E1W3-bwIp1j_M and need some structural integrity to attach it to.

As always, thanks in advance for your replies!

[Bill M.]

I do not think so. On my trailer the "frame" ends about 16" before the end of the shell and the floor is supported with "outriggers". On the sides the frame is in the middle and "outriggers' run out to the shell.