Following yesterday's 2022 rule tweet.
Here's what the underside of the car will look like
A small diffuser & flat floor will be replaced by bigger venturi tunnels. This will (wrongly) be called ground effect as in the 80s (+ no skirts)
Bargeboards & the Y250 front wing replaced

The old flat floor (yellow) with the short diffuser (blue) is switched. For a tunnel set up with long inlet leading to a curved floor (not totally flat) and longer diffuser section.
This creates more downforce and is less sensitive behind another car

In 2021 the front wing and bargeboards all served to create outwash and a messy wake behind the car.
Flow into the 2022 underfloor is largely influenced by the front wing shape and inlet fences. The rear brake duct fence will also help manage airflow at the back of the floor.

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Craig Scarborough

@ScarbsTech

22 Dec 21

There are all new regs coming to #F1 for 2022
The cars will be totally different, as the problems of overtaking have been studied and the rules start to resolve the issues.
This has been in the pipeline for years
Thread:-

The aims are to reduce the wake the car creates from its complex aero (FW, bargeboards etc). While at the same time trying to make the following car less affected by the wake, i.e. not losing so much downforce.
So, the car us simpler and creates more downforce under the car.

Teams will redesign the entire aero package from scratch. Theres no reference or carry over to the current aero.
The tyres & wheels get bigger
Power units & gearboxes gain 1 final upgrade, then are homologated until 2026

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Craig Scarborough

@ScarbsTech

21 Dec 21

Another #AbsurdF1Comparison - springs.
A roadcar spring (large), Williams rear corner spring, Force India torsion bar
#F1 cars used to use coil springs mounted around dampers (coilovers) to support the car. Torsion bars replaced coils as they were easier to package (1990s).

There are other spring types used on #F1 car suspension.
Often heave movement is controlled by Belleville washers, flat cone metal springs that can be stacked to gain the reqd spring rate.
Then there are carbon fibre disc springs, similar to bellevilles.

The problem with coil springs mounted over dampers is the sideforce they out into the damper. This video shows the effect.
Additionally coilovers are large assemblies to package and any change in spring or damper means both have to be removed.

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Craig Scarborough

@ScarbsTech

7 Nov 21

Troubles with rear wings are rare, but it can be dangerous when there are
What makes up a rear wing?
Lots of tech regs define the 2 wing elements and endplates. Teams are allowed DRS and 2 wing supports too.

The exterior surfaces are largely made from carbon fibre with a white foam core (rohacell). Aluminium sections end the wing elements and allow the DRS to pivot and the wing angle to be adjusted with shims. Some teams bond the wing at a fixed angle and adjust only the gurney.

DRS is a hydraulic ram that pulls the flap with a lever arm to its open position
Spherical end bearings are used to allow for flex in the flap, despite teams often running a centre support
Regs set out the normal and open gap, a max of 85mm is allowed.
DRS can be used in 2022

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