Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Tue Nov 21, 2017 3:14 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next
Author Message
dickwolff
 Post subject: Seats - Mounting
PostPosted: Mon Sep 06, 2010 3:01 pm 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
How are people mounting their seats? Does anyone have a simple adjustment mechanism?

My seats are currently not attached to anything. I'd like to change that.

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by Anonymous on Mon Sep 06, 2010 3:01 pm, edited 1 time in total.

Top
 Profile Personal album  
 
Rich Brazell
 Post subject: Seats - Mounting
PostPosted: Mon Sep 06, 2010 5:10 pm 
Hero Member
Hero Member

Joined: Wed Oct 21, 2009 12:33 pm
Posts: 2767
Images: 64
Location: Jamul, CA (San Diego area)
The plans provide just about the simplest way to mount the seats. The attach brackets have 3 adjustment holes, which you insert a double acting pip pin into to adjust the seat fore and aft, depending on how long your hoofs are. [:p]

RB


Last edited by admin on Mon Sep 06, 2010 5:10 pm, edited 1 time in total.

Top
 Profile Personal album  
 
dickwolff
 Post subject: Seats - Mounting
PostPosted: Wed Sep 08, 2010 2:40 pm 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
Does anyone have some extra seat mount parts laying around that I could buy?

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by admin on Wed Sep 08, 2010 2:40 pm, edited 1 time in total.

Top
 Profile Personal album  
 
Fraser MacPhee
 Post subject: Seats - Mounting
PostPosted: Wed Sep 08, 2010 2:44 pm 
Sr. Member
Sr. Member

Joined: Wed Oct 21, 2009 8:57 am
Posts: 629
Images: 19
Location: USA
Well, as a matter of fact, the old bird I just aquired may have just what you need - and since I was gonna replicate what I know you have, we might just be able to do a tradarooski here, oh future T-18 master.

_________________
Fraser MacPhee
N926WM
Serial #279-1
Draper, UT


Last edited by admin on Wed Sep 08, 2010 2:44 pm, edited 1 time in total.

Top
 Profile Personal album  
 
dickwolff
 Post subject: Seats - Mounting
PostPosted: Tue Jan 11, 2011 7:58 pm 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
My Thorp has Seat Angles as shown in Drawing 505, part -3. They are 3/4 x 3/4 x 1/16" extruded angles riveted to the sides of the aft tunnel, as well as the left and right fuselage skins. They are set up to 9 degrees, just like the "855" seat installation is. My guess is that these angles were part of an earlier seat design that was superseded by the one shown in Drawing 855.

Does anyone out there have a seat installation based on these 505-3 angles? If so, any pictures? I'm thinking that if I can work with what is already there, I could save myself some work.

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by admin on Tue Jan 11, 2011 7:58 pm, edited 1 time in total.

Top
 Profile Personal album  
 
leewwalton
 Post subject: Seats - Mounting
PostPosted: Tue Jan 11, 2011 8:37 pm 
Administrator
Administrator
User avatar

Joined: Tue Oct 20, 2009 4:09 pm
Posts: 1440
Images: 107
Location: Houston, TX
Dick,
Hope this helps ... this is Fat Katt, but N4588 is not much different. I could rassle up some pics of that install as well if necessary.

Image

Outboard RH Side

Image

Outboard LH Side

Image

Inboard LH Side

_________________
Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Tue Jan 11, 2011 8:37 pm, edited 1 time in total.

Top
 Profile Personal album  
 
dickwolff
 Post subject: Seats - Mounting
PostPosted: Tue Jun 21, 2011 3:36 am 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
The 853/856 front seat mount brackets are supposed to be hogged out of big hunks of aluminum billet. Has anyone made theirs out of angles? I can't see why that wouldn't work.

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by admin on Tue Jun 21, 2011 3:36 am, edited 1 time in total.

Top
 Profile Personal album  
 
fytrplt
 Post subject: Seats - Mounting
PostPosted: Tue Jun 21, 2011 4:59 am 
Sr. Member
Sr. Member
User avatar

Joined: Tue Oct 20, 2009 8:07 pm
Posts: 756
Images: 2
Location: Lakeland, Florida, USA
I made mine from pieces of angle and spacer material. Didn't make them adjustable as I needed all the room I could get. You can always add a thicker seat back cushion should you need to move forward. This alternative has served well for over 2500 hrs.

_________________
Bob Highley
N711SH
SN 835
KLAL


Last edited by admin on Tue Jun 21, 2011 4:59 am, edited 1 time in total.

Top
 Profile Personal album  
 
leewwalton
 Post subject: Seats - Mounting
PostPosted: Tue Jun 21, 2011 5:05 am 
Administrator
Administrator
User avatar

Joined: Tue Oct 20, 2009 4:09 pm
Posts: 1440
Images: 107
Location: Houston, TX
Dick,
Mine are two pieces of 1/8 angle stock side by side (trimmed as shown in the 856 dwg). No reason it needs to be a single piece other than the task of keeping the two sides in sync. There's a bit of shimming required to keep everything lined up (on the outboard mounts in particular).

I've seen several that use just a single angle on each side rather than the paralleled mount as shown in the drawings. I'm pretty sure that CSA sells the mounts as single bent up piece 4130 on each side.

_________________
Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Tue Jun 21, 2011 5:05 am, edited 1 time in total.

Top
 Profile Personal album  
 
davem
 Post subject: Seats - Mounting
PostPosted: Tue Jun 21, 2011 10:26 am 
Jr. Member
Jr. Member
User avatar

Joined: Thu Oct 22, 2009 9:27 am
Posts: 56
Location: USA
Here is the method the tailwind guys use--light and easy--just put the front of the seat on the hooked pins, and the rear sits on the floor. In the Thorp the rear would sit on the angles, or in my plane there is a little AL box built up on either side the seat sits on at the rear. I remade the front attachments to eliminate the adjustment on mine, as like others I needed all the leg room I could get. But putting those pins in to latch the front seats is a very agrevating task. Were I to do it over I would use the Tailwind method.

Image Insert:
Image

Put File Caption Here

Image Insert:
Image

Put File Caption Here

_________________
Dave M
Sacramento
ex-T-18 owner


Last edited by admin on Tue Jun 21, 2011 10:26 am, edited 1 time in total.

Top
 Profile  
 
dickwolff
 Post subject: Seats - Mounting
PostPosted: Tue Jun 21, 2011 1:24 pm 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
That is actually very slick, Dave! Two months ago, that's the way I would have done it too.

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by admin on Tue Jun 21, 2011 1:24 pm, edited 1 time in total.

Top
 Profile Personal album  
 
jtball
 Post subject: Seats - Mounting
PostPosted: Wed Jun 22, 2011 5:08 am 
Newbie
Newbie

Joined: Tue Nov 03, 2009 7:00 pm
Posts: 47
Images: 3
Location: Australia
Just my 2 cents worth. When I purchased my project , I removed those 1/8 angles riveted to tunnel an side skin, and remade the seat attach as per the drawings I have. Latest ones. CSA supplied the parts.The reason is just for more strength ,but still light weight construction, in the event of a heavy landing or high G, Hope that ain't gonna happen,so that I don't go through to the lower floor when those angles collapse.Might be hard to land like that.

Image Insert:
Image

Put File Caption Here

_________________
James Ball


Last edited by admin on Wed Jun 22, 2011 5:08 am, edited 1 time in total.

Top
 Profile Personal album  
 
leewwalton
 Post subject: Seats - Mounting
PostPosted: Wed Jun 22, 2011 5:36 am 
Administrator
Administrator
User avatar

Joined: Tue Oct 20, 2009 4:09 pm
Posts: 1440
Images: 107
Location: Houston, TX
Yep that's the CSA setup I was referring to. He removed the alum mounts (apparently from the drawings) and went in with a single bent up piece of 4130 on each side.

_________________
Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Wed Jun 22, 2011 5:36 am, edited 1 time in total.

Top
 Profile Personal album  
 
Stephen Peirce
 Post subject: Seats - Mounting
PostPosted: Wed Jun 22, 2011 5:41 am 
Newbie
Newbie

Joined: Thu Oct 22, 2009 7:42 am
Posts: 24
Location: USA
I made my installation just like the previous builder did his. The single angle is simple and just as strong. The most expensive part if it was the Pitpins. I was Lucky and found a bin full of surplus pitpins at my engineering lab at work. The lab guys have been helpful to me in the past with parts, just a long as I don't go over board. On my foward seat eye bolts, I shaved them down and place a 3/32 rivit thru the bolt and seat penatration.

_________________
Stephen R. Peirce
S/N#078 Ph 256-461-0233
Rocket City
Huntsville, Alabama


Last edited by admin on Wed Jun 22, 2011 5:41 am, edited 1 time in total.

Top
 Profile  
 
dickwolff
 Post subject: Seats - Mounting
PostPosted: Wed Jun 22, 2011 3:32 pm 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 469
Images: 0
Location: Canada
Check those radii carefully on the bent-up steel brackets. I had to send mine back.

_________________
_________
In theory, theory and practice are the same. In practice, they are not.


Last edited by admin on Wed Jun 22, 2011 3:32 pm, edited 1 time in total.

Top
 Profile Personal album  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron