Was the F92A double-floor ever banned?

[Giando]

Hello, i was reading this 2020 article on motorsport.com
https://it.motorsport.com/f1/news/f1-re ... 0Ft4GR2Xuc
about the mighty Ferrari F92A where its designer Jean Claude Migeot is reported to say that the double-floor solution was banned by regulations the following year (1993).

I've never heard about this before and i've searched the web extensively in order to find something about it but nothing came up.

Anyone old/experienced enough (i'm 50 by the way so don't take it unpolitely ) to remember something about it?

Thank you very much

[CMSMJ1]

I don't remember it being explicitly banned but as it was slow then perhaps this was the main driver.

Maybe there is something in the 1994 regs (I have no link to earlier) > https://www.jomenvisst.de/fia/

Perhaps it is this >
3. Width and shape between the front and rear wheels:
The maximum width of the bodywork behind the centre line of the front
wheels and in front of the centre line of the rear wheels is 140cm.

Between the rear edge of the complete front wheels and the front edge
of the complete rear wheels all sprung parts of the car visible from
directly beneath the car must lie on one plane. All these parts must
produce a uniform, solid, hard, rigid (no degree of freedom in relation
to the body/chassis unit), impervious surface, under all circumstances.
The periphery of the surface formed by these parts may be curved
upwards with a maximum radius of 5cm.

To help overcome any possible manufacturing problems, a tolerance of
+/- 5mm is permissable across this surface.
No part of the bodywork in front of the rear wheel centre line and
extending above the height of the rear complete wheels may project
beyond 50cm each side of the longitudinal axis of the car.

[Giando]

I don't remember it being explicitly banned but as it was slow then perhaps this was the main driver.

Maybe there is something in the 1994 regs (I have no link to earlier) > https://www.jomenvisst.de/fia/

Perhaps it is this >
3. Width and shape between the front and rear wheels:
The maximum width of the bodywork behind the centre line of the front
wheels and in front of the centre line of the rear wheels is 140cm.

Between the rear edge of the complete front wheels and the front edge
of the complete rear wheels all sprung parts of the car visible from
directly beneath the car must lie on one plane. All these parts must
produce a uniform, solid, hard, rigid (no degree of freedom in relation
to the body/chassis unit), impervious surface, under all circumstances.
The periphery of the surface formed by these parts may be curved
upwards with a maximum radius of 5cm.

To help overcome any possible manufacturing problems, a tolerance of
+/- 5mm is permissable across this surface.
No part of the bodywork in front of the rear wheel centre line and
extending above the height of the rear complete wheels may project
beyond 50cm each side of the longitudinal axis of the car.

Thank you. I'm not sure if have understood it correctly: could it be the part highlighted in bold?
I am not sure... it seems to me just the usual floor rule...

[CMSMJ1]

I don't remember it being explicitly banned but as it was slow then perhaps this was the main driver.

Maybe there is something in the 1994 regs (I have no link to earlier) > https://www.jomenvisst.de/fia/

Perhaps it is this >
3. Width and shape between the front and rear wheels:
The maximum width of the bodywork behind the centre line of the front
wheels and in front of the centre line of the rear wheels is 140cm.

Between the rear edge of the complete front wheels and the front edge
of the complete rear wheels all sprung parts of the car visible from
directly beneath the car must lie on one plane. All these parts must
produce a uniform, solid, hard, rigid (no degree of freedom in relation
to the body/chassis unit), impervious surface, under all circumstances.
The periphery of the surface formed by these parts may be curved
upwards with a maximum radius of 5cm.

To help overcome any possible manufacturing problems, a tolerance of
+/- 5mm is permissable across this surface.
No part of the bodywork in front of the rear wheel centre line and
extending above the height of the rear complete wheels may project
beyond 50cm each side of the longitudinal axis of the car.

Thank you. I'm not sure if have understood it correctly: could it be the part highlighted in bold?
I am not sure... it seems to me just the usual floor rule...

Yes - I think that would be what would do it for me - I did have a look at the other regs in the link and it was amusing how they developed and became oh so restrictive.

If we could get the regs for 1992 it would be really useful.

[Tzk]

I read the bold part like this:
if viewed from below everything visible has to be on a single plane. But if it is not visible from below, it doesn't have to be on that plane. So to me this paragraph doesn't rule out a double floor, just two partially visible floors.

Also note that the reg states that "all these parts must produce a uniform.... surface" but it doesn't state that it's a single surface. Maybe (as a non-native speaker) i'm reading that wrong, but to me it seems this rule doesn't forbid the usage of an extra tunnel inside the chassis or a double floor...

[mzso]

I don't remember it being explicitly banned but as it was slow then perhaps this was the main driver.

It wasn't slow because of the floor. But because the engine was wretched. But they blamed it on the chassis to keep up the myth. Typical Ferrari... (There was an article I recently saw about it with one of the designers, probably the english version of the OP on motorsport.)