Trailing fender ?

They let you modify their machine for the test? That is awesome. I guess we'll be doing fenders.
 
After watching LB's video several times we went with no front fenders but front trailing fenders and rear fenders. The body was already shaped such that drilling the front holes further back was difficult.

What if we took a piece of 1/64" plywood and layed it on edge along the body so it covered the backside of the front wheel? We could bend it around the front of the wheel, cut and taper it somehow. This way it would be mounted solidly to the body and keep air from getting into the back of the wheel. This would, however, direct air over the top of the car rather around the outside of the wheels.

Would a piece of plywood work also as an extension to the inside of rear fenders? It would attach to the inside of the rear fender and stand on edge along the backside of the rear wheel. This would prevent air from getting into the backsided of the rear wheel.
 
LightninBoy said:
davet said:
They let you modify their machine for the test? That is awesome.

No .. that was how the exhibit was set up. I personally couldn't believe it when I saw it - its like the exhibit was designed for pinewood derby.

Got it. When I've been there it has only had the side profile of a wing that you could spin.
 
Here's what we have so far. We'll touch up the fenders after all of the covering is on and cleared. The front fenders do not stick out beyond the wheels and the rears go a few thousandths beyond the wheels. The rears are canted like the wheels and the DFW fender is canted to match the wheel.
DerbyLEDwiring.jpg

DerbyLEDday.jpg
 
Speaking of fenders, I finally got the new GEE fenders from John including the trailing fenders. All combined they weigh 4.1 grams. Not bad! They were 4.2 until I shaved the little nubs off where they are molded together.