1) six tail lights (trailer tail lights)
2) turn signals (trailer marker lights)
3) more tail lights (trailer marker lights)
4) marker lights (2 on each side to show full width of car)
5) turn signals (trailer marker lights)
6) license plate illumination lights
All were bought in the automotive department at Walmart. The trailer tail lights were incandescent, but I brought aftermarket LED bulbs to replace the stock incandescents. When I rebuilt the boattail after getting rear ended, I wanted to build a unique, bright, rear lighting pattern that couldn't be missed by future Speedracer wannabe's coming up fast from behind.
The backup lights are mounted under the tip of the boattail under clear lexan in the same manner that the 6 tail lights are mounted above the tip of the boattail under clear lexan. The backup lights are aimed slightly down from horizontal.
Here are line drawings of the Questair Venture that I patterned my boattail from. Ideally I should have used a less steep angle on the underside to compensate for the road surface restricting the fill-in airflow under the boattail, but I have a steep approach angle to my driveway and didn't want the boattail to drag so I went with the Venture tailcone angle (aircraft require tail clearance for when they rotate on takeoff). To compensate, I made my rear wheel boattails asymmetric to help direct airflow under the boattail. Based on the dirt deposit patterns under the boattail, the whole setup seems to work, but it would be nice to confirm it with tufting.
