Thread Tools Search this Thread Display Modes
Old 03-04-2014, 08:18 PM   #15
2 Rivet Member
1959 22' Caravanner
Tampa , Florida
Join Date: Feb 2014
Posts: 38
Blog Entries: 30
Ok, Thanks again. Based on the above, I think I'll add a horizontal plate and small angle across the main frame members. I'll replace the 4" channel strut and set it up so I'm welding the edge of the horizontal plate to the top surface of the new channel. The small angle will make up for the corroded bend that used to make the angle that MarkR is referring to. That way, I'm not forcing the skin back over the 1" gap to meet the vertical front plate.

JimCat2000 is offline   Reply With Quote
Old 03-04-2014, 10:34 PM   #16
Rivet Master
65CV's Avatar
1959 26' Overlander
Western , Massachusetts
Join Date: Sep 2005
Posts: 1,360
Images: 6

The front plate is one of the key elements of the structure of the trailer. From what I've read, the '59 era trailers had an undersized front plate. Wally Byam and/or his Engineers increased the size and number of rivets after their evaluation during the 1959 CapeTown to Cairo Caravan.

Your plate rotted out like mine did. The 7-panel construction is prone to leaks above and around the forward window, letting plenty of water in to corrode your frame members.

If Wally knew about the plate sizing in 1959, he probably would have made a plate like mine after the rebuild at Colin Hyde’s. Hopefully this picture helps clarify the purpose and size needed. If you look at '60s trailers, you'll see quite a few rivets in the front of the trailer, below the window. This is the redesign of the front plate after Wally discovered the design flaw.

BTW, if you haven't discovered theVap and have time to listen to podcasts, you'll learn quite a bit listening to back episodes.

Given the fact that you're doing a major restoration, I want to be sure that you've seen some of these threads. See major renovations if you haven't. I wish I remembered which one it was -- probably NorCalBambi -- who did a great drawing of the key structural components. It is important to understand before you button up your trailer.

Essentially this: the frame supports the plywood floor. There is a bolt that bonds the frame, the floor and c-channel together. It needs to be properly isolated with a plastic washer so that no galvanic corrosion occurs. Additional screws bond the c-channel to the floor, but are not critical.

The outer walls bond to the c-channel, and on our '59s, the belly pan slips between them. The strength of the trailer is the frame/floor/c-channel/outer skin, forming a monocoque construction. The inner skins stiffen the assembly.

Hope this helps,

Attached Thumbnails
Click image for larger version

Name:	front_plate.jpg
Views:	87
Size:	124.5 KB
ID:	206837  

65CV is offline   Reply With Quote
Old 03-05-2014, 01:44 PM   #17
Rivet Master
RM66caravel's Avatar
1966 17' Caravel
Newport , North Carolina
Join Date: Jan 2013
Posts: 1,286
Oh yes the hold down plate is very important rivets into the c channel and the shell and keeps it all together. Will the shell fly off if not attached? Not right away but that freak Yankee wind could come out of nowhere and may do the damage. Best safe not sorry.

Gotta get busy! Have a great day! Now where did I put those revits?
RM66caravel is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacement for Bargman L-100 o.driftwood Doors & Locks 9 10-20-2016 05:31 PM
C channel/U channel replacement cole3444 Repairing/Replacing Floor &/or Frame 10 01-31-2014 07:50 PM
C channel bolts? Phrunes Repairing/Replacing Floor &/or Frame 11 06-12-2011 09:14 PM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:50 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.