Alpine A521

[Steven]

Further discussion about steering systems in general can happen here:
viewtopic.php?f=1&t=29824

[Redragon]

Marko compleinning about Alpine flexible rear wing. The irony of Redbull not happy with the flexibility of others. Thought they never had problems with it as they were the masters on the area. I guess Alpine and Alfa are now the top dogs on designing flexible wings

[Nano4k]

[diffuser]

https://www.youtube.com/watch?v=pySOI1ppz6U

Why is that a rear wing Bend and not the rear suspension squat?

[Owen.C93]

https://www.youtube.com/watch?v=pySOI1ppz6U

Why is that a rear wing Bend and not the rear suspension squat?

Because the wing and camera are fixed relative to each other via the body?

[diffuser]

https://www.youtube.com/watch?v=pySOI1ppz6U

Why is that a rear wing Bend and not the rear suspension squat?

Because the wing and camera are fixed relative to each other via the body?

The camera is in that black horizontal tube about 4"(10 CMs) near the roll hoop. The rake fulcrum is the front wheels. The rear wing squat will travel much more the camera. Even so, the rear wing drop would still be apparent if they both dropped together.

[Just_a_fan]

https://www.youtube.com/watch?v=pySOI1ppz6U

Why is that a rear wing Bend and not the rear suspension squat?

The grid lines are "fixed" to the camera. The camera and fin are both fixed to the car. Notice that the tip of the fin doesn't move vertically relative to the grid lines. Thus the only thing moving is the wing relative to the camera. This takes out the effect of the suspension squat and just shows the motion of the wing relative to the camera.

[diffuser]

https://www.youtube.com/watch?v=pySOI1ppz6U

Why is that a rear wing Bend and not the rear suspension squat?

The grid lines are "fixed" to the camera. The camera and fin are both fixed to the car. Notice that the tip of the fin doesn't move vertically relative to the grid lines. Thus the only thing moving is the wing relative to the camera. This takes out the effect of the suspension squat and just shows the motion of the wing relative to the camera.

I see your point for RBR but for Alpine, it's just squatting!

[DarthPlagueisTheVise]

[nsr2000]

Return of the big Engine Cover?

[Owen.C93]

Why is that a rear wing Bend and not the rear suspension squat?

Because the wing and camera are fixed relative to each other via the body?

The camera is in that black horizontal tube about 4"(10 CMs) near the roll hoop. The rake fulcrum is the front wheels. The rear wing squat will travel much more the camera. Even so, the rear wing drop would still be apparent if they both dropped together.

If the grid lines were painted on a wall fixed the the ground behind the car then I agree. But the grid and the camera are essentially rigidly fixed together, which is why it can be used to measure the relative flex.

[diffuser]

Because the wing and camera are fixed relative to each other via the body?

The camera is in that black horizontal tube about 4"(10 CMs) near the roll hoop. The rake fulcrum is the front wheels. The rear wing squat will travel much more the camera. Even so, the rear wing drop would still be apparent if they both dropped together.

If the grid lines were painted on a wall fixed the the ground behind the car then I agree. But the grid and the camera are essentially rigidly fixed together, which is why it can be used to measure the relative flex.

My argument, if I choose to accept it , would be...

From the side of the car, the distance between the floor and the ground where the camera is vs the distance from the floor to ground at rear wing, Must be half(rake).

Therefore where is that extra travel?

Queue in mission impossible theme music!

[Steven]

Gents, please note we now have a general rear wing flex topic.
Please us it
Rear wing flex and FIA regulatory test 2021

[Blackout]

Imola test floor is back in Monaco
Circle = 'standard' race spec
Yellow rectangle = Bahrain test spec
Green rectangle = Imola test spec

Pics from Motorsport.com and Alpine

[Thunder]

Driving analysis has been moved to the Team Thread. Keep it about the Car in here please.