[f-AA] 7AC Windshield Installation

[Rob McDonald]

On my Champ there is a strip of aluminum covering the joint where the
windshield meets the fabric. When installed it was "sealed" at the front
edge with clear Silicone sealant. Is that standard procedure, or is
there a better way to do this?

Rob

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[Plain Carl]

It's not a perfect system, but rather than using some tubular pucky, I use sticky back refrigerator weather strip materials.  Comes form PMA Home Depot, and is grey, white or black in color and various thicknesses.  Peels right off if one has to r&r the windshield which in the long run may save a crack.

 

PC

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From: Rob McDonald <r...@sunrisetechnical.ca>
To: Aeronca <aer...@westmont.edu>
Sent: Sunday, June 21, 2009 8:38:59 AM
Subject: [f-AA] 7AC Windshield Installation

[Tom Holmes]

Same here.  I do use tube pucky around the bottom, nothing on the sides, unless it whistles.

Tom

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From: Plain Carl <cham...@sbcglobal.net>
To: aer...@westmont.edu; r...@sunrisetechnical.ca
Sent: Sunday, June 21, 2009 7:41:03 AM
Subject: Re: [f-AA] 7AC Windshield Installation

[dennis biro]

you said not perfect,!

 

when I put my windshield back in, this is the best idea I read yet, it can't get any better than that, unless you maybe use black U shaped rubber weather striping, I use that on all the medal edges on the plane anyway!!

 

Might consider using the black rubber channel along all outside edges AND the refreg tape!!

 

dennis, always looking for better ideas!

----- Original Message -----

From: Plain Carl

To: aer...@westmont.edu ; r...@sunrisetechnical.ca

Sent: Sunday, June 21, 2009 10:41 AM

Subject: Re: [f-AA] 7AC Windshield Installation

[joer...@suddenlink.net]

Years ago I remember being told not to use silicone sealers on plexiglass. There was a reason, but I cannot remember for sure. I think it was that silicone was abrasive to plexiglass or maybe it clouded or crazed it. I just took my old mentor's word for it. jrh

[Tom Holmes]

Dennis,

you don't want to make the windshield unable to flex.  It will crack on your first cold morning landing.  Don't ask me how I know that!! ;-)  I put the side pieces on with oversize holes in the plexiglas and rubber washers.

The L3 sits in a piece of Beechcraft wingroot rubber stuff, tube pucky around the bottom to keep it from leaking and whistling.

Tom

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From: dennis biro <lta...@bluemarble.net>
To: aer...@westmont.edu
Sent: Sunday, June 21, 2009 7:56:03 AM

[dennis biro]

I understand what you are saying, about the windows, I do use oversize holes and robber washers also, it's  that top area is what needs sealing, that's where the refreg tap would work the best! but I also use rubber channel on those side peace, for sealing and protecting the area underneath the edges, like  between  wing and the fuselage!

 

this is the same stuff wag aero and the other guys sell, for protecting areas from abrasion, over time. I have seen aircraft fabric cut through, because there was noting to protect it from the edges of the bare medal trim pieces. of course you use common sense here, there are places where rubber channel is not really necessary and should not be used!

 

dennis

[Mark PETERSON]

The only problem with silicone is that some of the smelly chemicals will craze the plexiglas. There is DAP hardware tube of silicone that is "water clean up" and that's safe for windshields.  It was in Joe Dickey's early newsletters pre-1995 if I remember.  I have it on the Chief and 15 years later it's just fine.

Mark


> Date: Sun, 21 Jun 2009 10:11:07 -0500
> From: joer...@suddenlink.net
> To: aer...@westmont.edu

> Subject: Re: [f-AA] 7AC Windshield Installation
>

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[Rob McDonald]

Thanks for the suggestions folks. I knew I could count on you to have
some good advice.

ROb

[Plain Carl]

Many, if not all, silicone sealers will cloud plex

 

PC

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From: "joer...@suddenlink.net" <joer...@suddenlink.net>
To: aer...@westmont.edu
Sent: Sunday, June 21, 2009 10:11:07 AM

Subject: Re: [f-AA] 7AC Windshield Installation

[Chris Murray]

I don’t know how it would be met by the FAA, but auto glass shops have a silicone they use to secure windshields in. The neat thing about their product is that it’s water activated. I used it years ago to install some side windows in a T-craft. Just squeeze it in place with a caulking gun, then spritz water on the plexiglass, and hold in place for 8 – 10 hours. Didn’t have the acetic acid small of most silicone sealants.

Chris

NC31986

 

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From: aeronca...@westmont.edu [mailto:aeronca...@westmont.edu] On Behalf Of Plain Carl
Sent: Sunday, June 21, 2009 7:18 PM
To: aer...@westmont.edu
Subject: Re: [f-AA] 7AC Windshield Installation

 

Many, if not all, silicone sealers will cloud plex

 

PC

 

---

From: "joer...@suddenlink.net" <joer...@suddenlink.net>
To: aer...@westmont.edu
Sent: Sunday, June 21, 2009 10:11:07 AM
Subject: Re: [f-AA] 7AC Windshield Installation

Years ago I remember being told not to use silicone sealers on plexiglass. There was a reason, but I cannot remember for sure. I think it was that silicone was abrasive to plexiglass or maybe it clouded or crazed it. I just took my old mentor's word for it.  jrh
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[j...@joea.com]

Good info to know!

Joe A

On 21 Jun 2009 at 19:59, Chris Murray wrote:

>
> I don´t know how it would be met by the FAA, but auto glass shops have a silicone they use to
> secure windshields in. The neat thing about their product is that it´s water activated. I used it
> years ago to install some side windows in a T-craft. Just squeeze it in place with a caulking gun,

> then spritz water on the plexiglass, and hold in place for 8 - 10 hours. Didn´t have the acetic acid

> small of most silicone sealants.
> Chris
> NC31986

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