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Plates in Olympics


daveo

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MMP_6625-X3.thumb.jpg.f21566d10c83a603351c99c77a657040.jpgHinges at the end of the plate get the stack height lower. Integrating hinge and slide into one mechanism tends to raise the stack height. FES appeear to have put the hinge and slide into series, rather than the slide underneath the hinge. 

This photo of Ramona Hofmeister (bronze mediallist) from the FIS SmugMug site at an earlier race shows the plate better. No obvious Allflex branding, but shape and central screw holes look a near match. Material???

Note the binding offset from each end of the plate, allows for the extra length mechanism at the front. 

Further pondering: If the constraint mechanism remains in the middle of the board but you allow more hinge movement just in the front half you get a flexier front half and in the rear you still have flex to a point then a locked flex/SCR combination. 

 

 

Edited by SunSurfer
add detail , and further thoughts
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1 hour ago, SunSurfer said:

I think you are too cynical Erik. :)

As if that could ever happen.

Good 'engineering' would involve an inexpensive extrusion/cover serving the dual purpose of mechanical function and tactical misdirection.

As you probably realize, beyond a certain level, victory is as much in the mind as in the body.

As a side note; interesting skeletal structure on the podium.

 

Edited by Beckmann AG
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1 hour ago, Beckmann AG said:

As a side note; interesting skeletal structure on the podium.

Super G podium was even greater contrast, the speed suits minimise the masking effect of the clothing. This silhouette came from the Guardian website 

https://www.theguardian.com/sport/gallery/2018/feb/17/winter-olympics-day-eight-in-pictures#img-10

Women have a much greater range of lower limb angles, in part due to the shape of the female pelvis, and the femoral bicondylar (carrying) angle.

1429.jpg

picture-9.png

Edited by SunSurfer
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  • 1 year later...

Totally resurrecting a dead thread, but here's my 0.02:

I think the plate is exactly an unbranded Allflex save for the stuff in front of the front hinge.

There is a horizontal post securing the entire mechanism together, I think it's only 4 parts: attachment part to allflex, base post(for allflex holes, or F2 proprietary mounting holes cuz they can), housing and the axel. The purpose of the mechanism to make the front sliding (and suspended). 

The middle two mounts are already fixing the plate substantially, the front would then serve two purposes: 

1. Relaxing the plate body a bit, not too much shape shift like the normal allflex when board is angulated a lot.

2. Making the left and right side of the plate independent, reducing torsional flex in the front since it's suspended.

 

Alternative possibility in this school of thought: The middle two mounts can also be modified, purpose of which making the 4 mounts from front to back gradually decreasing in suspension. If they get their design and calculations right, the whole plate can bend in a smooth curve with even pressure along the length, unlike Allflex which pretty much concentrates between the middle two mounts.

 

But then again, only speculations

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