|
Plastic like coroplast will probably be best for cost, weight and durability. You can either buy it or find it in a sign shop. Regular cardboard can still be used for testing/temp purposes though. Aluminum sheeting should also work well.
I believe there are a few boattail topics and materials I've seen range from lexan, fiberglass, coroplast, aluminum... bascially whatever is readily available and shapeable.
__________________
My 5 pillars of fuel efficiency:- driving style
- aerodynamics
- tires
- weight reduction
- engine maintenance
|