Here's my closer look at the @redbullracing #RB19
Very much a RB18+ with lots of evolution of the 2022 car. No bad thing given its success and the aero testing limits for RBR this year.
#F1 #F1Tech #F12023 Image
Suspension follows last season, which has seen other teams follow its raked wishbone set up and low steering rack/trackrod position.
#F1 #f1tech #F12023 Image
The front wing is heavily loaded in the middle, despite being higher off the ground. Plus, a simpler take on the wing/endplate tricks adopted by Merc and others.
#F1 #f1tech #F12023 Image
Aero around the floor is aggressive, with a large underfloor inlet, scalloped tunnels and this elegant floor edge flap.
Cleverly twisted in shape to create winglets over the scrolled floor edge. Then running nearly the length of the rest of the floor edge.
#F1 #f1tech #F12023 Image
The wide sidepod helps push the front tyre wake away from the car. The deep undercut helps feed the rear aero, while still allowing a strong floor edge vortex.
#F1 #f1tech #F12023 Image
The vivid livery belies the fact only the top half of the car appears to be painted.
Less paint saves weight.
The car is believed to be at the minimum weight limit this year.
#F1 #f1tech #F12023 Image

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More from @ScarbsTech

Feb 27
During the unveiling of all the new #F1 cars, the terminology of all the shapes and features gets out of hand.
Here's a simple overview of some of the sidepod jargon we use.
Starting with 'coke bottle' this is the way the sidepods slim between the rear wheels
#F1Tech #F12023 ImageImage
This year a new term and popular design feature is 'waterslide', also described as downwash sidepods.
It's where the top surface slopes down the rear.
#F1Tech #F12023 #F1 ImageImage
An old featymure, but one that gets more extreme every year is the 'undercut'.
It's where the front corner of the sidepod tucks in
#F1Tech #F12023 #F1 ImageImage
Read 7 tweets
Feb 26
I had to draw the @WilliamsRacing #FW45, such nice lines and livery. It's much more conventional this year, which is probably a good idea.
#F1 #f1tech #F12023 Image
The sidepods are a mix of a downwash waterslide ontop, combined with a ridged shoulder and deep front undercut.
This seems to tick every design option and meet all of the aero functions
#F1 #f1tech #F12023 Image
While floor appears to be simple, but is a work in progress. With obvious panel lines to allow new bits to be bonded in.
#F1 #f1tech #F12023 Image
Read 6 tweets
Feb 19
Other details on the @MercedesAMGF1 #W14 the front wing endplate.
For 2022 the endplate was made larger and straighter to reduce the outwash turbulence it created for the car behind.
So Merc created a cutout to create outwash, but this was banned over the winter.
#F1 #F1Tech
To be legal, the wing tips must meet the endplate in a specific orientation. Merc have done this with small legality parts connecting the two, as well as adding an extra fin.
Which all allows the large cut out.
#F1 #F1Tech
To the left is what the FIA envisage for this area, to the right is the big hole Merc have effectively created.
Allowing more airflow to pass down and outwards thru the cutout.
#F1 #F1Tech
Read 4 tweets
Jan 25
#F1 suspension has evolved massively over the years. Especially how the spring/dampers are mechanically operated.
From the Sixties till Today, I’ve drawn up a normalised & simplified set up to show the major variations over the years.
/long thread...
#F1 #techTalk
1-Outboard
We start with the outboard mounted spring/damper. This worked as it's simple, plus the spring/damper travel was close to wheel travel.
Back in the day, the chassis was much wider than now, so short spring/dampers could fit in the narrow gap.
#F1 #TechTalk
2-Rocker Arm
The rocker arm set up became commonplace in the 70s & 80s. Creating a narrower monocoque and putting the spring/damper out of the airflow for the front wing & ground effects. The spring/damper travel was limited and the set up was bulky & heavy
Read 13 tweets
Oct 13, 2022
Ride height is critical for an #F1 car, adjustment may be only a by a millimetre. But, how do they adjust it?
Its most commonly done with the push (pull) rod length. By changing shims in the rod.
Thicker shims raise a pushrod ride height. The opposite for pullrod.
#F1 #TechTalk
The carbon rod and (typically) metal end are bolted together. Creating space for a shim.
Teams have a lookup table, relating a ride height change to a specific thickness of shim.
There's a box of different sized shims in the garage, matched to the list.
#F1 #TechTalk
With the car on its stands in the garage, the bolt can be loosened, to open up the joint, allowing the shim to be removed and new one added.
It's a bit trickier with pull rod as the gap is pressed closed by the weight of the suspension assembly.
#F1 #TechTalk
Read 4 tweets
Aug 16, 2022
2026 #F1 power unit regs are out. Summary, the same layout and power output (~1000hp).
But new; eFuel, less fuel flow, and greater ERS-K, to compensate for the loss of combustion power, the ERS-H & Variable trumpets.

#TechTalk
This means we keep the power, but more will come from the hybrid system, not quite 50/50.
#F1 #TechTalk
Without the MGUH and variable trumpets the combustion engine will be more laggy. With the reduced fuel flow exhaust-flaming hot antilag strategies won't be practical. Cold antilag and using the added output from the MGUK will be required.
#F1 #TechTalk
Read 6 tweets

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