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Board index » Sunderland S-18 (T-18CW) » Convertible Wing

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rrobut
 Post subject: Centre wing spar cap
PostPosted: Wed Jul 15, 2020 5:36 am 
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Joined: Sat Nov 30, 2013 7:08 pm
Posts: 24
Location: Brisbane
On the S 18, Drawing number 227 states that 1 cap 2x2x0.25 2014 T6 channel is required.
The drawing seems to show that it is 1.25x2x1.35x0.25.
Alcoa Die 892

I am a little confused as to the actual size that is to be ordered.
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James Grahn
 Post subject: Re: Centre wing spar cap
PostPosted: Wed Jul 15, 2020 1:04 pm 
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Joined: Sat Oct 24, 2009 7:16 pm
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It is a machined piece. That’s why you see different dimensions.
Cubes
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rrobut
 Post subject: Re: Centre wing spar cap
PostPosted: Fri Jul 17, 2020 6:45 am 
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Joined: Sat Nov 30, 2013 7:08 pm
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Location: Brisbane
Thanks Cubes for the prompt reply.
So it starts as a 2x2x2x.25 channel and both legs are machined to about 1.25. The outer one at the fitting end tapered.
Both machined full length to the reduced dimension
Rob
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Board index » Sunderland S-18 (T-18CW) » Convertible Wing

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