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Seat backs

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tonyrenshaw268(at)gmail.c
Guest

Posted: Mon Sep 16, 2013 12:32 am Post subject: Seat backs

Gidday,

Considering seating solutions I was wondering if anyone has an opinion on whether there might be an argument to take a plaster moulding of my back, then laying it up with cloth, then applying a suitable depth of foam to that plug, and then re-laying more cloth on-top of that. This way you get an insert that has your upholstery attached that you can drop in, and the plan is to then pack it out appropriately. Would that be a worthy strategy, or am I thinking too much? It might be a bit limiting for wriggle room I suppose, but as I see it, there isn't much wiggle room anyway. I'm interested in the bean bag solution, but I have never sat in one that was initially comfortable, and I don't know how you could contain the beads such that they didn't migrate. So, any opinions on my attempts to "redesign the wheel" ? I would love to find a product, a spray foam, that would go off quickly and then be shapeable. It would be great to be able to use a spray foam as a template-able material. If there is anything out there that can do that, I'd love to know. 

Regards

Tony Renshaw

Sydney Aussie

alanb(at)dpy01.co.uk
Guest

Posted: Mon Sep 16, 2013 1:12 am Post subject: Seat backs

As far as the shape of the setback to clear the spar pins mine has a clear curved hardback which clears the pins and provides a firm base for the foam for the back. It also offer s a little Lumbar support.



The seat cushion insert is the 'absorbing foam material which is a little hard after a long flight and I'm looking to try and provide more thigh support to take the pressure off and spread the load a little better.



No idea of the manufacture but I did let the Yorkshire lass at the LAA Rally Tent have a look to see if it helped her seat design.



As far as shaping seats to persons profile I remember once watching a program on formula one cars and they had the driver sit in a mould while they pumped in a foam to get the exact shape required - sorry don't have any details other than that.



Alan

G-OBJT

On 16 Sep 2013, at 09:31, Tony Renshaw <tonyrenshaw268(at)gmail.com> wrote:



 	  Quote: 	
		   

 

 Gidday,

 Considering seating solutions I was wondering if anyone has an opinion on whether there might be an argument to take a plaster moulding of my back, then laying it up with cloth, then applying a suitable depth of foam to that plug, and then re-laying more cloth on-top of that. This way you get an insert that has your upholstery attached that you can drop in, and the plan is to then pack it out appropriately. Would that be a worthy strategy, or am I thinking too much? It might be a bit limiting for wriggle room I suppose, but as I see it, there isn't much wiggle room anyway. I'm interested in the bean bag solution, but I have never sat in one that was initially comfortable, and I don't know how you could contain the beads such that they didn't migrate. So, any opinions on my attempts to "redesign the wheel" ? I would love to find a product, a spray foam, that would go off quickly and then be shapeable. It would be great to be able to use a spray foam as a template-able materia!

 l. If there is anything out there that can do that, I'd love to know. 

 Regards

 Tony Renshaw

 Sydney Aussie

brian.davies(at)clara.co.
Guest

Posted: Mon Sep 16, 2013 1:18 am Post subject: Seat backs

Tony

Take a look at www. Demon-tweaks.co.uk and look up expanding foam seat kit.  I have used this in racing car and makes an exact foam shape of your body.  I am not sure of the practicality of in a Europa because it be could uncomfortable for any one else who sat in the seat.



Regards



Brian Davies 



Sent from my iPad



On 16 Sep 2013, at 09:31, Tony Renshaw <tonyrenshaw268(at)gmail.com> wrote:



 	  Quote: 	
		   

 

 Gidday,

 Considering seating solutions I was wondering if anyone has an opinion on whether there might be an argument to take a plaster moulding of my back, then laying it up with cloth, then applying a suitable depth of foam to that plug, and then re-laying more cloth on-top of that. This way you get an insert that has your upholstery attached that you can drop in, and the plan is to then pack it out appropriately. Would that be a worthy strategy, or am I thinking too much? It might be a bit limiting for wriggle room I suppose, but as I see it, there isn't much wiggle room anyway. I'm interested in the bean bag solution, but I have never sat in one that was initially comfortable, and I don't know how you could contain the beads such that they didn't migrate. So, any opinions on my attempts to "redesign the wheel" ? I would love to find a product, a spray foam, that would go off quickly and then be shapeable. It would be great to be able to use a spray foam as a template-able materia!

 l. If there is anything out there that can do that, I'd love to know. 

 Regards

 Tony Renshaw

 Sydney Aussie

grahamsingleton(at)btinte
Guest

Posted: Mon Sep 16, 2013 3:05 am Post subject: Seat backs

Tony

your idea is a good starting point. The trick with bean bags is that they have to be only half full so that the beans can wriggle too. They don't migrate through normal upholstery fabric.

Graham



        From: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 To: europa-list(at)matronics.com 

 Sent: Monday, 16 September 2013, 9:31

 Subject: Seat backs

  

 

--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>



Gidday,

Considering seating solutions I was wondering if anyone has an opinion on whether there might be an argument to take a plaster moulding of my back, then laying it up with cloth, then applying a suitable depth of foam to that plug, and then re-laying more cloth on-top of that. This way you get an insert that has your upholstery attached that you can drop in, and the plan is to then pack it out appropriately. Would that be a worthy strategy, or am I thinking too much? It might be a bit limiting for wriggle room I suppose, but as I see it, there isn't much wiggle room anyway. I'm interested in the bean bag solution, but I have never sat in one that was initially comfortable, and I don't know how you could contain the beads such that they  didn't migrate. So, any opinions on my attempts to "redesign the wheel" ? I would love to find a product, a spray foam, that would go off quickly and then be shapeable. It would be great to be able to use a spray foam as a template-able materia!

 l. If there is anything out there that can do that, I'd love to know. 

Regards

Tony Renshaw

Sydney Aussie



http://forums.matronics                    &nbsptronics.com/contribution" target="_blank">http://www.matronics.com/contri================

 

  

  

 [quote][b]

flyingphil2

Joined: 04 Dec 2009
Posts: 117

Posted: Mon Sep 16, 2013 6:37 am Post subject: Re: Seat backs

When I used to work in F1, we would have people come round to help with the seat fitting for the new drivers.

The procedure was to get the driver to sit in their preferred position whilst sitting on a bag full of polystyrene beads and resin (it may have been more glamorous than that - just to get the price up to F1 standards).  Once they had sat there for a while and it had cured, the bag could then be taken away and used as a mould to make a padded seat from.

So, all of the ideas so far and the link to demon tweaks are similar to this and would achieve the same end result.



Regards,



Phil

graeme bird

Joined: 15 Jul 2010
Posts: 434

Posted: Mon Sep 16, 2013 11:13 am Post subject: Re: Seat backs

Maybe I am a Philistine; I just used 2" memory foam (blue) with a 6mm ply base and back to match the headrest angle. It adapts to your shape, its absorbs energy, I cant feel the spar pins, its square shape was easy to upholster. I used 3" for the seat, 2 blue and one pink. Just a rectangle. I cant see how it could be more comfortable.

Dont forget you will be taking them in and out a lot and putting your muddy feet on them and kneeling on them too.

I was very impressed with the upholstery for Europas at the LAA Rally though for £400 quid though

_________________
Graeme Bird
kit4 (Wagstaff) TBD
Kit3 G-CLXU (Gregory) mono 914 xs Woodcomp
Kit2 G-PATS - (kesterton) Mono Classic 912 warpdrive
Kit 1 G-UMPY - Mono Classic/XS 912S, Woodcomp G(@)gdbmk.co.uk

carlp101

Joined: 07 Mar 2016
Posts: 120

Posted: Fri Apr 14, 2017 8:04 am Post subject: Re: Seat backs

Hi Graeme,



I'm fed-up of getting a numb bum during a long flight. Does you have this problem with your seat? I'm really keen to find a solution, so any help (from anyone on the forum) would be much appreciated.



I flew to Glenforsa for lunch a week or two back and that was 3.5 hours. Not very comfortable 



All the best.

Carl

Duncan McFadyean

Joined: 18 Jan 2011
Posts: 224

Posted: Fri Apr 14, 2017 12:12 pm Post subject: Seat backs

I have a molded seat pan (plagiarized from an orthopaedic seat) covered with about 1" Temperfoam. It's just about OK on long flights, certainly better than unshaped squabs. It would possibly be better is leather-covered, enabling the occupant to squirm and reposition occasionally.

Duncan McF.

 

  	  Quote: 	
		   ----Original Message----

From: cparkinson(at)cisc-uk.com

Date: 14/04/2017 17:04

To: <europa-list(at)matronics.com>

Subj: Re: Seat backs



--> Europa-List message posted by: "carlp101" <cparkinson(at)cisc-uk.com>



Hi Graeme,



I'm fed-up of getting a numb bum during a long flight. Does you have this problem with your seat? I'm really keen to find a solution, so any help (from anyone on the forum) would be much appreciated.



I flew to Glenforsa for lunch a week or two back and that was 3.5 hours. Not very comfortable 



All the best.

Carl





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=468389#468389

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graeme bird

Joined: 15 Jul 2010
Posts: 434

Posted: Fri Apr 14, 2017 1:36 pm Post subject: Re: Seat backs

I find my pretty comfortable actually. I am generally ready for a stretch (or loo) after about 2.5 hours. The harder foam moulds to your shape as you warm it.

grahamsingleton(at)btinte
Guest

Posted: Fri Apr 14, 2017 1:55 pm Post subject: Seat backs

Carl

I know the feeling, I used a beanbag for a cushion. Made one to fit using

polystyrene beads to half fill ( if its full it won't reshape) a velvet bag.

In use just shuffle about and get a new shape every hour or so. The bean bag will also protect the spine in heavy landings. The beans will crush and absorb the energy. A normal cushion will compress on loading but the risk is that you are still moving down when the aircraft bounces up, which means you hit the seat base twice as hard. 



Guaranteed to work! If it doesn't I'll buy you a pint {{{



Graham





    On Friday, 14 April 2017, 17:05, carlp101 <cparkinson(at)cisc-uk.com> wrote:



  



 --> Europa-List message posted by: "carlp101" <cparkinson(at)cisc-uk.com (cparkinson(at)cisc-uk.com)>



Hi Graeme,



I'm fed-up of getting a numb bum during a long flight. Does you have this problem with your seat? I'm really keen to find a solution, so any help (from anyone on the forum) would be much appreciated.



I flew to Glenforsa for lunch a week or two back and that was 3.5 hours. Not very comfortable 



All the best.



Carl



Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=468389#468389



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