Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
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Jeff J
PostPosted: Sun Sep 09, 2018 5:37 pm 
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James Grahn wrote:
FWIW, I have S18 cables in stock as well. Jeff, they should be exactly 5 inches longer than the T.
Cubes


I ordered rudder cables from you and installed them in my T-18... maybe you sold me T-18 rudder cables. It could be that something is just that different with my airplane. I don’t believe the T drawings specify a length for the rudder cables. I know my top and bottom rudder bushings are 2 different sizes.

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"The joke in aviation is, 'If you want to make a million, you'd better start with £10m.' " -Bruce Dickinson


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James Grahn
PostPosted: Sun Sep 09, 2018 9:54 pm 
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That is correct. It doesn't. At least not directly. The top and bottom rudder Bushings should be the same size. Same as flaps as well. Drawing 581.
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Jeff J
PostPosted: Mon Sep 10, 2018 8:08 am 
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James Grahn wrote:
That is correct. It doesn't. At least not directly. The top and bottom rudder Bushings should be the same size. Same as flaps as well. Drawing 581.
Cubes


One nice thing about homebuilt aircraft is that the drawings don't have to be followed verbatim. The down side of that is replacement parts per drawing don't always fit and I had to learn to be a little more cautious (measure first) when ordering parts.

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Thorp T18
O-320-B3B (160 HP)
68x74 Sterba Propeller

"The joke in aviation is, 'If you want to make a million, you'd better start with £10m.' " -Bruce Dickinson


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Ryan Allen
 Post subject: Tunnel Question
PostPosted: Tue Jan 01, 2019 1:56 pm 
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I am confused. Please look at the photo of the tunnel and tunnel plans. The plans show an angle where my finger is pointing. My tunnel does not have this angle (in the background of the photo). I cant find the drawing that shows the "seat supports" on my tunnel. I am beginning to believe the 505 tunnel drawing you see in my photo has been superseded with a newer edition. You comments are appreciated.

Attachment:
File comment: Tunnel
Tunnel.jpeg
Tunnel.jpeg [ 820.35 KiB | Viewed 509 times ]


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bfinney
PostPosted: Tue Jan 01, 2019 6:08 pm 
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I believe the seat installation was revised at some point. My aircraft has the angle in question but not the drawings. I don't have the standard Thorp seat installation. My drawing -505 has some indications that the angle was removed, drawing -855, seat installation, has the rivet locations indicated but not the angle. The drawings that you need are -855 installation, 852, 853, 854, 856 and 857.

My installation has a T section supporting a Cessna seat rail for a 150 seat.

Not the best photos but I think you get the idea.


Attachments:
File comment: Angle just visible under seat rail on the right.
IMG_3985.JPG
IMG_3985.JPG [ 1.43 MiB | Viewed 501 times ]
File comment: Navworx ADS-B under pass seat
IMG_0379.JPG
IMG_0379.JPG [ 1.44 MiB | Viewed 501 times ]

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Bruce Finney
N18JF T-18C #262
Auburn, WA USA
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Ryan Allen
PostPosted: Tue Jan 01, 2019 6:38 pm 
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Dang Bruce, I love those seat rails. I often wondered if anyone had used those. Thanks for the tips.


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