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Old 07-22-2014, 12:09 PM
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Andrew Anunson Andrew Anunson is offline
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Default Turtleback Windows

When installing the rear windows in the turtleback, should we completely fill in the void between the window and the inner layer of TB fiberglass with flox?

I installed the first window, and didn't want to dislodge my clamps and boards while filling the gap completely. For now, I just have flox completely filling the void in around 10 spots around the window (1 inch long, each spot).

Dennis, I see you asked the same question on the mail list a long time ago, but I didn't find any responses.
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Old 07-22-2014, 07:26 PM
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Default Re: Turtleback Windows

It would probably be fine to fill the rest with micro to keep things lighter.
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Old 07-22-2014, 10:33 PM
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Default Re: Turtleback Windows

Ok, good idea Ron, Thanks!
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Old 07-22-2014, 11:13 PM
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Default Re: Turtleback Windows

Andrew, what I did on my Velocity refurb was create a tape of two plies and matched the edging to the outside line. Then I created a two ply panel by laying it up over some plastic to protect the glass surface on the inside. The areas around the edges of the window were beveled to create a finished shape.

The final phase is to cover the panel with upholstery material and fasten it to the interior using screws and upholstery buttons. The bevel around the windows takes the place of any micro bevel you would have done.
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Old 07-26-2014, 01:31 AM
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Default Re: Turtleback Windows

Thanks TMann... but I don't follow your description. Do you have any construction photos?
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Old 07-26-2014, 10:48 AM
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Default Re: Turtleback Windows

I'll post some photos when I get back from Oshkosh.
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Old 08-22-2014, 11:18 PM
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Default Re: Turtleback Windows

Andrew, the way I make upholstery panels is to create a large flat two-ply layup and let it cure. I take that and attach it to the area I want to upholster with short washer-head screws. Obviously you cannot get it to follow curves so you cut relief areas to allow it to conform.

All trimming can be done with shears.

Areas around windows are a combination of pieces cut from scraps to create the beveled outline of the frame. Corners can be trimmed and curved with heat. Once you have it like you want it you can secure all the relief cuts and bevels with tapes.

You attach the upholstery to the panel and then line it up with the windows inside. The panel is held in place with Velcro and upholstery screws with snaps. Upholstery buttons are covered in the same material and are made to cover the snaps/screws.

Below is the panel I made for my door on the Velocity.
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Old 08-23-2014, 12:03 AM
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Default Re: Turtleback Windows

Oh that is a very nice solution! How well would it work if you did your 2 ply layup inside the canopy itself....so it would conform to the shape of the canopy?

So, anywhere you have upholstery you use a glass panel? Is this how other builders upholster their plane?

Thanks!
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