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I'm Matthew Somerfield, a freelance journalist focused on the technical elements of Formula One. It has been a pleasure to provide content via this site for the last 5 years, which has led me to several paid freelancing jobs along the way. I'm currently plying my trade with and working alongside the legend that is Giorgio Piola.

This has seen the content here diminish as a result and I'd like that to change. In order to accomplish this I need your financial support, as I need to break free of the shackles of doing this part time. If you like the content I've been producing and want more of it I'd ask that if you can spare some change each month it'd go a long way towards transforming this site into the technical behemoth I know it can be.

As such I've set up a 'tip jar' over on Patreon and will continue to set goals and rewards based on our success -

11 Jun 2014

Caterham arrived in Canada with a new set of rear wing endplates, both drivers tested them during the free practice sessions but only Kamui raced them (Ericsson switching back to louvred endplates due to his crash in qualifying).

Teams use louvres in the endplates for efficiency with pressure moving from one side of the endplate to the other, which in turn reduces the pressure gradient where the flaps meet with the endplates.  This pressure gradient entwines into a vortex (which we often see in the form of vapour trails, in damp conditions).  By allowing the pressure to move from one side to the other side of the endplate this vortex is more controlled reducing the drag induced by the flaps.  You'll often see the shape, orientation and number of louvres adjusted based on the circuit characteristics and corresponding wing angle of attack.

I'd therefore suggest that Caterham were looking to gain more downforce/balance for the low speed corners but sacrifice a percentage of their top speed around the Circuit Gilles Villeneuve, although it must be said that Caterham do run very long leading edge slots when compared with the other teams and so they may have found this offsets some of the louvre loss.


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