Porsche, in its quest to build the perfect rear-engined super car, has been endlessly testing its GT cars lately at the Nurburgring. We've seen spy videos of the next GT3, the upcoming GT2, and even ...

Designed in 1945 by the National Advisory Committee for Aeronautics (precursor to NASA), the NACA duct was intended as an air inlet for jets. Only it was a failure. The design wasn't any good for ...

Before the 2006 Formula One season, there was a Ferrari Enzo spotted running around the streets near the Ferrari factory. An Enzo with a NACA duct in the nose and a huge exhaust. So what was it? An F1 ...

HVAC professionals across the country are experiencing a recent change that is driven by energy codes. This change is related to duct-leakage testing on new and often retrofitted HVAC systems. A lot ...

The Concept AMG GT Track Sport, first teased this summer, is nearing a reveal, with Mercedes publishing photos of the car testing on track. The Track Sport wears a giant rear wing and a sharp front ...

I recently received a somewhat anxious call from a friend in the sheet metal industry. He won a nice duct order, but his submittals were being rejected because he needed to provide published ...