Beyond the pride of Norfolk..

Whilst the RF84 is off being finished I’ve been looking at projects beyond the pride of Norfolk.. (I’m not blogging about the Van-Diemen as I couldn’t think of anything more annoying than working on a project whilst somebody else writes a commentary. Hence the lack of blogs recently.)  When the car is together and running I’ll put a proper update together on what was done, by whom, how and why… it shouldn’t come as much of a surprise that the RF84 continues to surprise as to just how ‘individual’ a design it is.. But to other things.

Since I started drawing a Formula 750, on my board, in the 1980’s, the idea of a Laurence Marks penned car hasn’t ever, fully, gone away.  (I even bought an engine, gearbox, uprights and an axle before giving up on that idea in the early 90’s.)  Playing with the new DS product, Xflow, got me interested in external aero again, and to do that properly I needed to draw some decent car models. A project that I’ve got lined up (hopefully I’ll be showing some of it off before too long) means decent geometry is essential. So to prevent me wasting too much time I created a carline template.  Its got wheels that can be varied in size and position, and the track and wheelbase are set up so that they can be varied by simply editing a value.  It also plainly needed a driver, and all too rarely in the history of motorsport, I was the obvious choice.  So for the second time in our married lives Mrs Marks had to help me measure myself in a driving position. This time the result is parametric, useful if I start growing again I guess, and can be moved around for various seating position options.


I also added front and rear wings, mainly to look at the options for parametrically changing wing section, position and angle.  By now you can probably see where this is going. A little idle hacking around and a bit of downloading from Grabcad and I’d got something that looks a bit like a hillclimb car.


If you’ve read the Newey book you’ll see where I got the idea for the wing fences that extend to the front wheels.  At this stage the idea of the model was primarily to look at aero, and the initial runs are very interesting, hampered though they are by the fact that I can’t get on a machine with a useful number of processors at the moment.  I’m working on that one..


Now this thing (it hasn’t got a name or number yet) is starting to have a life of its own.  Works in progress now include reading the blue book, especially the rops bits, drawing a parametric space frame that can be optimised and crash test analysed, and obviously there’s lots to do on the aero side and then suspension.  I don’t think that I’ll be able to resist blogging what happens as I progress with this.

Anyone spot that the day job doesn’t have much engineering in it any more?