The Type 9 has it's aerodynamics based on the Kenworth truck spoiler.
A fiberglass 4"x6" replaces the 1 and 1/4" pipes used on the type 5.

Crash protection is more important than speed. I know, other recumbent builders call me a "Safety Nazi". But read more about fairings, and it says they are for protection:
http"//www.whatisafairing.com

Why is it called a fairing? My theory: You have a strong wind blowing in your face when you bike. You install a windsheild, and then you have a fair wind blowing on you. That's why it's called a fairing.