Hello Gents, here's a pattern I'm currently working on, it's the March 721X that was raced briefly during the 1972 season. It had a couple of notable innovations such as high mounted rear suspension and exhausts. The pattern is about 75% finished, still bits and bobs to sort out and add. If it turns out OK hopefully PP will bring it out as a kit, if not this will be a one off for me!!...
Great photo's from Monaco Andy, thanks for posting. This version will be o the first appearance at the race of champions at Brands Hatch. That version doesn't have all the extra winglets which I hope will be more robust. Always easy to add of course to do the Monaco car.
Post by David Lawson on Jun 15, 2012 13:11:45 GMT -5
The concept of the 721X was to reduce the polar moment of inertia which was achieved by using an Alfa Romeo gearbox from the T33 sports car that Peterson had raced the previous year and heavily modified by March to bring the gear cluster in front of the rear axle line. Inboard brakes and all suspension and exhausts were gathered together around this gearbox as part of this desire to forshorten the weight as well as shortening the nose. The result was that the car was about 3 seconds off the pace...
Here is my appalling "Box Brownie" picture of Ronnie Peterson in the original 721X at the 1972 Race of Champions - the only time the car ran in its original set up that Marlon has modelled.
There is something nice about glorious failure cars isn't there.
Post by Dave Wisdom on Jun 17, 2012 3:28:45 GMT -5
Great choice of subject Marlon. I remember at the time how excited I was by the appearance of this car - it looked so different and innovated, but alas succumbed to the issues previously mentioned by David. Great car though and I know it will look superb once you've worked your magic on it. Hope it goes into production.
Thanks for the kind words Russell, I haven't seen that plan before, I'd been working from period photo's and a side view plan and scaled from the internet.
I've had a play with the rear wing today and how to mount it, and more importantly how it can be replicated in numbers if PP are to release it. I'm sure those on here would scratch their own supports but here's what I've come up with that looks OK and is easy to put together...
the supports can be replicated in white metal and makes for quite a robust set-up that shouldn't break just bend in the event of a roll over which mine will certainly be subject too!
you can see in the last photo all the mess underneath that accumulated during the creation of this pattern, that will all disappear of course once I have this in some silicon and slush cast a shell to do the final detailing bits and bobs, finishing and mounting points for the chassis.