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Seat Thoughts

 
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MJKTuck(at)cs.com
Guest
PostPosted: Wed May 02, 2007 5:36 pm    Post subject: Seat Thoughts Reply with quote
Hi Folks,

My own experience of my seats is that when in the seated position for an hour or so there is a definite pressure point right on my butt cheeks mainly I think because my foam seat isn't quite thick enough or is too soft. I end up feeling the flat floor of the glassed foam inserts covering the pushrod tunnel.

I want to do it again as part of a refurb and think the best thing to use is to determine what shape I would need for total (wrap-around) support. Isn't there some way of sitting on a bag of polystyrene beads and then sucking all the air out? I believe race car drivers custom fit their seats somehow this way. Anyone know of a kit or something?

Once you have the basic shape you could get a better idea of what the final shape ought to be. My guess is that given the posture you end up with in a Europa there would be a lot more foam in the lumbar area (and below) as well as under the legs.

My 2c worth.

Regards,
Martin Tuck
Europa N152MT
Wichita, Kansas [quote][b]

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n100rh(at)sbcglobal.net
Guest
PostPosted: Wed May 02, 2007 9:04 pm    Post subject: Seat Thoughts Reply with quote
Martin,
I made a seat for a f.ford years ago by sitting on a garbage bag with
two part foam mix in it. The trick is to be in the position you want to
be in as the mix makes the seat around you. After making the mold, I
glassed it to make a neater package. Interesting project. Smile

Ralph
MJKTuck(at)cs.com wrote:
Quote:
Hi Folks,

My own experience of my seats is that when in the seated position for
an hour or so there is a definite pressure point right on my butt
cheeks mainly I think because my foam seat isn't quite thick enough or
is too soft. I end up feeling the flat floor of the glassed foam
inserts covering the pushrod tunnel.

I want to do it again as part of a refurb and think the best thing to
use is to determine what shape I would need for total (wrap-around)
support. Isn't there some way of sitting on a bag of polystyrene beads
and then sucking all the air out? I believe race car drivers custom
fit their seats somehow this way. Anyone know of a kit or something?

Once you have the basic shape you could get a better idea of what the
final shape ought to be. My guess is that given the posture you end up
with in a Europa there would be a lot more foam in the lumbar area
(and below) as well as under the legs.

My 2c worth.

Regards,
Martin Tuck
Europa N152MT
Wichita, Kansas
*
*


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kheindl(at)msn.com
Guest
PostPosted: Thu May 03, 2007 5:06 am    Post subject: Seat Thoughts Reply with quote
Martin,

I had the same problem and solved it with a short term, very low cost,
solution, which ended up being a longterm solution:
I asked a local upholsterer to make me a large cushion out of memory foam,
about 3 inches thick.
It was really meant for my passengers, but now I use it all the time myself.
I just lay it on top of my sculpted seat, and it feels like I am sitting on
a cloud. The pressure points are compressed to nothing, so there is
virtually no loss of headroom ( I am 6'2"), and it molds itself around your
behind and under your thighs. I can sit there all day without any
discomfort.

Karl
Quote:
From: MJKTuck(at)cs.com
Reply-To: europa-list(at)matronics.com
To: europa-list(at)matronics.com
Subject: Seat Thoughts
Date: Wed, 2 May 2007 21:33:54 EDT

Hi Folks,

My own experience of my seats is that when in the seated position for an
hour
or so there is a definite pressure point right on my butt cheeks mainly I
think because my foam seat isn't quite thick enough or is too soft. I end
up
feeling the flat floor of the glassed foam inserts covering the pushrod
tunnel.

I want to do it again as part of a refurb and think the best thing to use
is
to determine what shape I would need for total (wrap-around) support. Isn't
there some way of sitting on a bag of polystyrene beads and then sucking
all the
air out? I believe race car drivers custom fit their seats somehow this
way.
Anyone know of a kit or something?

Once you have the basic shape you could get a better idea of what the final
shape ought to be. My guess is that given the posture you end up with in a
Europa there would be a lot more foam in the lumbar area (and below) as
well as
under the legs.

My 2c worth.

Regards,
Martin Tuck
Europa N152MT
Wichita, Kansas

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ami(at)mcfadyean.freeserv
Guest
PostPosted: Thu May 03, 2007 1:54 pm    Post subject: Seat Thoughts Reply with quote
Martin,
Your last three words ("under the legs") is the key to it.
By putting support under the legs, weight is taken off the pressure points under the 'butt'.

Seats forms moulded intimately from expanding foam are fine for racing cars, where you need to be held firmly against the chassis for relatively short periods. In an aeroplane, there is a need to be able to squirm around abit and shift weight to a more comfortable position on a long flight. A tight fitting seat (despite feeling comfortable initially) prevents this.

Duncan McF.
[quote] ---

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kheindl(at)msn.com
Guest
PostPosted: Thu May 03, 2007 2:59 pm    Post subject: Seat Thoughts Reply with quote
Duncan, I agree with you 100%. A 'hardwired' seat is not a good idea. Also I
tried this foam wedge in the lower back that others are talking about. I
found it to be irritating as it reduces your seat area.
I also like to be able to move around from time to time.

Karl

[quote]From: "Duncan & Ami McFadyean" <ami(at)mcfadyean.freeserve.co.uk>
Reply-To: europa-list(at)matronics.com
To: <europa-list(at)matronics.com>
Subject: Re: Seat Thoughts
Date: Thu, 3 May 2007 22:51:35 +0100

Martin,
Your last three words ("under the legs") is the key to it.
By putting support under the legs, weight is taken off the pressure points
under the 'butt'.

Seats forms moulded intimately from expanding foam are fine for racing
cars, where you need to be held firmly against the chassis for relatively
short periods. In an aeroplane, there is a need to be able to squirm around
abit and shift weight to a more comfortable position on a long flight. A
tight fitting seat (despite feeling comfortable initially) prevents this.

Duncan McF.
---

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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