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Has anyone ever weighed a fabric wing, then weighed a metal wing and
compared weights?
-----Original Message-----
From: Kevin Gassert <[EMAIL PROTECTED]>
Sent: Apr 6, 2005 9:11 AM
To: 'Hartmut Beil' <[EMAIL PROTECTED]>, 'Walt Uebele'
<[EMAIL PROTECTED]>,
'Bill McNeeley' <[EMAIL PROTECTED]>,
'Coupers Tech' <[email protected]>
Subject: RE: [COUPERS-TECH] Wing Weights
----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
I assumed everyone was talking about the comparison between wings covered
in
the two materials. Of course the comparison of an uncovered wing with one
covered in metal is not a valid comparison. So has all the discussion in
the
past on the weight penalty of 38 or so pounds of the metal wings been on
the
comparison of covered wings?
Kevin
-----Original Message-----
From: Hartmut Beil [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 06, 2005 4:33 AM
To: Walt Uebele; 'Bill McNeeley'; 'Coupers Tech'
Subject: Re: [COUPERS-TECH] Wing Weights
----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
Although we had that discussion before, I am not convinced that the empty
weight will go up by exactly 40 lbs when converting the wings to all
metal.
Sure the aluminum weight added is around 40 pounds. Throw in a handful
rivets.
But on the other hand, before covering the wings with sheet metal , you
remove the fabric from the wings. This fabric , soaked in dope and paint
is
not weightless, one has to subtract the weight of the fabric from the
total
numbers. So instead of an increase of 40 pounds in weight, one might end
up
with a total of 20 pounds.
Hartmut
----- Original Message -----
From: "Walt Uebele" <[EMAIL PROTECTED]>
To: "'Bill McNeeley'" <[EMAIL PROTECTED]>; "'Coupers Tech'"
<[email protected]>
Sent: Wednesday, April 06, 2005 6:50 AM
Subject: RE: [COUPERS-TECH] Wing Weights
> ----[Please read http://ercoupers.com/disclaimer.htm before following
any
advice in this forum.]----
>
>
> Bill,
>
> My 415-C fabric covered wings were modified by STC to all metal in 1962
> using drawings and instruction #103000 from Birtcraft Engineering
Company.
> Added 32 pounds to the empty weight.
>
>
>
> Walt Uebele
>
> 1946 415-C
>
> N94113
>
>
>
> _____
>
> From: Bill McNeeley [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 9:47 PM
> To: [email protected]
> Subject: [COUPERS-TECH] Wing Weights
>
>
>
>
> ----[Please read http://ercoupers.com/disclaimer.htm before following
any
> advice in this forum.]----
>
>
> My partner and are looking to buy an SLA qualified Ercoupe. Useful load
is
> important consideration. Can anyone tell me the difference in weight
between
> fabric and metal Ercoupe wings.
>
>
>
>
>
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>
>
>
>
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