Updates Car9, January 2, 2012

[Marcus Barrow]

Some updates to reflect the FEA testing using Grape. After a lot of
work the car is now much stiffer.

It was warping at the rear roll bar which is fixed by the rear roll
bar braces meeting together at the the middle of the rear hoop. I have
two versions now which are in layers titled "StreetCage" ( the
original arrangement ) and "TrackCage".

The front of the frame has been stiffened too. The engine bay bracing
on the bottom and top has been simplififed and adjusted according to
the best test results. This also allowed the tubing in the scuttle bay
to be simplified too.

6000+ foot/lbs. of torque applied to the rear of the frame will twist
it less then 1/4".

I have added a simple model of Terradog's Duratech engine model.

This model is proving to be too short and will need to be lengthened
somewhat. The cockpit is about 54" long and really should be 59"-60"
long. I will update this with a stretch soon, but for the moment more
work will be done on the Car9G which has a longer frame.

The model for Car9 in Grape along with the original Locost and some
others is now available in this forum thread:
http://locostusa.com/forums/viewtopic.php?f=39&t=2224&start=195