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Old 04-05-2020, 08:10 PM   #1
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1979 Argosy Minuet 7.3 Metre
Madill , Oklahoma
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Lack of floor support

Been busy since last time. Floor off our 79 argosy. My iigquestion is. At the bathroom end. The frame looks like has been cut itís doesnít feel like there enough metal there. If you stand on the frame it sinks down. Is this normal? Let me try with a picture.
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Old 04-07-2020, 09:34 AM   #2
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My 77 Argosy is the same way. Your black water tank is siting over that area and the wood subfloor will tie it together. You wonít notice any real flex.
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Old 04-09-2020, 09:35 AM   #3
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Quote:
Originally Posted by Little city View Post
Been busy since last time. Floor off our 79 argosy. My iigquestion is. At the bathroom end. The frame looks like has been cut it’s doesn’t feel like there enough metal there. If you stand on the frame it sinks down. Is this normal? Let me try with a picture.
If the frame moves independently of the shell It sounds like what you have is commonly called "REAR END SEPARATION". Very common on older AS.

If you replace the piece of plywood you cut out (your photo), without removing and replacing the entire piece under the "C-CHANNEL" you will have significant problems with frame separation going forward. Most people use the old sub-floor as a template. Once the entire piece has been removed.

You need to understand the way your trailer is built. It starts on the ground. The tires support the axle(s). The axle(s) support the frame. The frame and outriggers supports the plywood sub-floor. The sub-floor alone supports the shell via the "C-Channel".

So if you do not replace the plywood under the c-channel as one piece across the frame to the edges of the skin you have defeated the engineered supporting of the skin and will allow the frame to move independent of the shell. No bueno.

Check out the foto's and diagrams in these threads.
https://www.airforums.com/forums/f22...pan-69159.html
https://www.airforums.com/forums/f22...ff-191141.html
https://www.airforums.com/forums/f44...is-117570.html

Hope that helps.

-Dennis
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Old 04-09-2020, 06:57 PM   #4
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1979 Argosy Minuet 7.3 Metre
Madill , Oklahoma
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Quote:
Originally Posted by batman View Post
If the frame moves independently of the shell It sounds like what you have is commonly called "REAR END SEPARATION". Very common on older AS.

If you replace the piece of plywood you cut out (your photo), without removing and replacing the entire piece under the "C-CHANNEL" you will have significant problems with frame separation going forward. Most people use the old sub-floor as a template. Once the entire piece has been removed.

You need to understand the way your trailer is built. It starts on the ground. The tires support the axle(s). The axle(s) support the frame. The frame and outriggers supports the plywood sub-floor. The sub-floor alone supports the shell via the "C-Channel".

So if you do not replace the plywood under the c-channel as one piece across the frame to the edges of the skin you have defeated the engineered supporting of the skin and will allow the frame to move independent of the shell. No bueno.

Check out the foto's and diagrams in these threads.
https://www.airforums.com/forums/f22...pan-69159.html
https://www.airforums.com/forums/f22...ff-191141.html
https://www.airforums.com/forums/f44...is-117570.html

Hope that helps.

-Dennis
Thanks a lot. The links helped also. We saved the floor for as much of a pattern as was usable. I see what you were talking about after I did extensive cleaning of the channel area. I feel ready in an unknowing way to tackle the floor. Thanks
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