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The front upright and the front bulkhead elevation suggest the car will have amid placed steering rack and a conventional cross nose section (i.e. not the Red Bull shouldered shape).
The rack position appears to be a development since the early Cad rendering which do not show the steering arm in that position. However the images do support the nose\front pylon design, with a large curved leading edge reaching down the regulated narrow front wing mounting.
There was a curious shot of wishbone end with a clevis holding a spherical bearing. This looks like a front upper wishbone mounting, so it seems that the front suspension will not run all flexures, perhaps unique in F1! Equally the wishbone appears to an H-section, which is odd too, but may be a temporary part before the carbon wishbone is designed.
A large Aluminium machined part is in fact the structure to mount the front torsion bars, this will sit in the upper front of the monocoque, It places the torsion bars all but horizontal. Most teams use the convention of a carbon bulkhead to mount these parts and position the torsion bars pointing steeply upwards.
The carbon lay up sequence is interesting; a lot of the work is carried out on a large open workshop area. This is on contract the clean rooms other teams use, I don’t fancy a primary crash structure being laid up with possible contamination.
As the buck was made from tooling board, we can conclude that the carbon cockpit-less tub we saw will be the actual race chassis. Be in a pre-machined state.
The two halves being test fitted on top of a dust extraction workbench. The tubs shape is highly conventional, as already mentioned with the front bulkhead shape. Also the front section is not excessively raised above the 550mm high cockpit opening and lack undercuts around the drivers hips. this leaves less space under the raised part of the cockpit, proven to be critical for the 2009 aero regs. At least it lacks the long keel like splitter under the raised section as seen in the first pics we saw of the tub.
Rear suspension