Because there is no topic for the RB16B yet and this does not belong in the RB16 topic,
I have posted it here for this moment. From the Japanese Autosport Web.
Google Translated English: https://translate.google.com/translate? ... 2282%3Fall
Red Bull F1, 2021 model machine is named "RB16B", but plans a big change from the previous year model
"Most of the chassis remains the same, the suspension elements are the same, and the gearbox is the same as last year. Basically, what changes is the clothes you wear, the aerodynamics."
The new rear suspension geometry, used late in the 2020 season, is intended to more efficiently manage the flow of air to the diffuser as the ride height changes, sources said. Red Bull uses a high rake concept that stands out compared to other teams, so the rear ride height changes significantly over its rivals' machines. If the air flow becomes more consistent even if the rear ride height changes, the behavior of the machine will be more predictable and nervousness will be suppressed. Therefore, it will be easier for drivers to always push without facing a situation where the rear downforce level suddenly changes.
To achieve this, Newey is also hoping to change the casing of the gearbox, which will regain the downforce lost under the 2021 regulations.
Red Bull is also expected to change the rear wing pillars from double to single, which also means improving the air flow to the rear of the machine. The team has already tested the design late in the 2020 season.
With so many changes, the rear of the RB16B is likely to be significantly different from the previous year's model, but the front area is also expected to undergo important modifications. Following Mercedes, Newey found that moving to the concept of a thin nose cone wasn't as easy as it first thought, and redened the underside of the machine front to improve air flow under the floor and to the diffuser.
2020 Abu Dhabi nose.