Yep, an upside down airfoil. Wanna see something even cooler. Check out my quick change rear end, modeled after the plans from the big sprint. Winters gave me the full scale plans. I had a high school friend that his father owned a machine shop and they let me use the shop. I started building the scale sprints then built my 427 cobra, and made parts for that also. They moved to Washington state, so I lost the use of the CNC and molds. I lost count of how many hours I had with these, but around 50. I sold many to clubs in Australia, where these 1/4 sprints are very popular. I just don't have time for the sprints or even a simple trailer, but someday I'll get back into it.
