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11 Jun 2014

McLaren's season hasn't got off to the sort of start they would have liked and have once again made several intrinsic design decisions that have perhaps hindered their development curve.  One layout problem invariably leads to several others but one of their decisions which was supposed to boost performance was their 'wishbone wing' rear suspension.  Embodying the wishbones in much larger fairings looked to bridge the performance gap lost by the beam wing this season, however other items had to be designed around it too and so rather than just changing one items invariably you end up with a list of items.

Don't get me wrong it wasn't a bad idea but as other teams have shown there is still the opportunity to create downforce even without the beam wing or structures placed in a similar locale.  In order to place use the wishbone wings and give them as much freestream airflow as possible the team opted to place their cooling ducts higher up, either side of the exhaust outlet.  We have since found out that Mercedes HPP made a late call (just before pre-season testing) on the exhaust manifold to be used by the Mercedes powered teams, whilst both Force India and Williams have re-sculpted and changed rear end cooling options McLaren have not.

McLaren's design was clearly more reliant on the older specification exhaust with far more space now inside the sidepods, which will have a detrimental effect on the thermal/aero dynamics.  Making swift changes of this magnitude are not easy, especially as the layout of radiators etc also determine both airflow characteristics and bodywork shaping.

Moving back to Montreal and both drivers tried their MP4-29 with no upper 'wishbone wings' during Free Practice (See main image above) in order to try and reduce some of the drag induced by the components.  However the team returned to the usual configuration for qualifying and the race most likely owing to a better performing car/strategy for the race.


  1. Do you think this may be something they try to address in the 'major Silverstone upgrade' since it has been earmarked as a major update for a while?

    1. I do, I think McLaren have some pivotal decisions to make though, one of which is how much do you push development for this season and hamper next. Or do you transfer what you were planning in 2015 and try to learn in advance. I'd imagine a new gearbox, suspension layout is in the works which would of course lend to the use of the new bodywork too.

  2. Yeah, resource management will be crucial for them especially with the new Honda engine next year.

  3. They can't use next year gearbox or any other so far Honda engine will be different and in most of the car next year and this are the same. Whatever you have is going to evolve into next year, so they can use this as a test. No need to switch programs is all one


Whilst I'm trying to keep atop of the blog you may have noticed of late that there is less content appearing. For those of you that haven't realised, most of my work has now been moved over to where I'm working with Giorgio Piola.

I'm still doing the technical image gallery for each GP with the continued support of friend of the site Sutton Images. However, as always my time is limited and so this might not be updated as quickly as it once was, so keep checking back.

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