Better suited to racing cars, as you suggest, as a close fitting seat is not
a benefit in a touring aircraft where the ability to squirm occasionally
provides much relief.
If I had it to do again I would use 2-part foam in the seat base, sculpt it
back to a broad shallow dish across the full width of the seat pan (with
the aileron torque tube just exposed at the lowest point, depending on
height required) and add a ply or two of BID. Then cover with dynfoam and
normal upholstery etc.
Haven't had a problem with foam in similar uses and the large size of some
bubbles are easily spanned by the BID. Obviously not for structural use or
where precise dimensional control is needed..
Duncan McF.
----- Original Message -----
From: "Alan Burrows" <alan@kestrel-insurance.com>
Subject: RE: Europa-List: Expanding Foam
<alan@kestrel-insurance.com>
>
> I used exactly the same two part foam throughout my motor racing career
> and always had a perfect fitting seat. The trick is to seal the foam in
> a plastic bag, I used a dustbin (trash) bag. Make the seat first then do
> the back rest i.e. make them separately, the quantities are more
> controllable that way. You can trim and join them together with tape
> before covering. The only thing to be aware of is that the sacks MUST be
> well sealed initially as the foam really does expand and WILL leak out
> if you haven't sealed the sack properly. Also make sure you use VERY
> LITTLE foam as it expands at a faster rate than the Chinese population!
> Other than that it's a really easy way to make the perfect fitting seat.
> Cheers
>
> Alan
>
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Jeremy
> Davey
> To: europa-list@matronics.com
> Subject: RE: Europa-List: Expanding Foam
>
>
> --> <EuropaFlyer_3@msn.com>
>
> One answer here might be to use the foam that is used for custom,
> very-close-fit seats - e.g. in Formula 1 cars?
>
> When we did the supersonic car record, the seat used this technology.
> The 'bag' was filled with the foam and the driver sat in it. He then sat
> there with a warm bottom while it cured - after which he had a seat that
> fitted both him and its shell like a glove.
>
> I'm considering similar for my Europa left-hand seat: I want to avoid
> the Hi-Top mod, but I'm 6ft tall and thick seats mean I'm banging my
> head on the window above. I also like a close-fitting seats anyway. This
> would enable me to have a shallow but extremely comfortable seat.
>
> Regards,
> Jeremy
>
> Jeremy Davey
> Europa Monowheel 537M G-EZZA
> Europa Club Vice-Chairman, Webmaster, PFA NC Representative
> PFA EC Member
> "If you can keep your head when all about you are losing theirs, then it
> is possible you haven't grasped the severity of the situation." Tail
> done Standard XS wings with mods underway CM installed in fuse (with
> airbrakes fittings) 1280 build hours to date Intended fit: Rotax 914
> turbo, Airmaster CS fully-feathering prop Lots of lights, buttons,
> switches, gizmos, and alarms
>
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of David
> Glauser
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Expanding Foam
>
>
> I tried it in exactly that location.
>
> Don't. Do. It.
>
> Really. Trust me. Cleaning that mess up was a royal pain. I then did the
> job over with proper blue foam.
>
> dg
>
>
> <steve.crimm@stephenscott.com> wrote:
> <steve.crimm@stephenscott.com>
> >
> > Flight,
> >
> > Has anyone ever used a two part expanding foam to use in place of blue
> foam
> > for special sculpting uses. I want to get a custom fit for the bottom
> floor
> > area under the seats and don't really want to have to do it with
> > pieces of rigid foam which I currently have in place. Pour it in
> > place (not
> directly
> > on the bottom but on plastic on the bottom), expand around all the
> > hoses
> and
> > filters in the seat bottom and then cut the top to fit.
> >
> > Steve
> > A058
> > N15JN
> >
> >
> >
>
>
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