Hacker News with Generative AI: Fuel Efficiency

Tiny vanes glued to planes promise big savings for US Air Force (newatlas.com)
A surprisingly simple tweak is making a venerable military transport aircraft more efficient. Literally gluing a few microvanes to the rear fuselage of a C-17 Globemaster III cargo plane can result in fuel savings in the tens of millions of dollars.
Flying-Vs and longer wings: how the shape of passenger planes is about to change (theguardian.com)
Urgent search for better fuel efficiency to cut emissions is driving radical innovation in aircraft design
A Stock Prius just drove across America averaging 93.158 MPG (theautopian.com)
Hypermilers are a different breed. Like racing drivers, they view elevation changes, acceleration and braking zones with millimetric precision, but instead of clipping apexes and shaving off milliseconds, they’re all about boosting cruising range and dropping fuel consumption. Case in point: One hypermiler just set a new coast-to-coast MPG Guinness World Record from behind the wheel of a current Toyota Prius, clocking an average fuel consumption of 93.158 mpg.