Radical Aerodynamic Semi Truck With 0.29 Cd Offers Dramatic Fuel Savings

Paul Niedermeyer
by Paul Niedermeyer
radical aerodynamic semi truck with 0 29 cd offers dramatic fuel savings

We’ve looked back at a boxy old International, so how about we gaze into the future? Aerodynamics is overarching key to improved transport fuel efficiency, since hybrid and other advance propulsion technologies have limited impact on long-haul trucks. This proposal by European truck maker MAN slips though the air with a 0.29 Cd (coefficient of drag), instead of the more typical 0.57 Cd. That represents a dramatic potential improvement in economy, but at the expense of an irregular-shaped cargo trailer. That’s going to be a big impediment to the trailer and cargo-handling standardization predominant in the industry. But it shows the potential available. More details on this and some early efforts at truck streamlining after the jump: Here’s the link to the full story and more pictures.

Join the conversation
2 of 14 comments
  • Detroit-Iron Detroit-Iron on Dec 06, 2009

    I would think that simply adding skirts to box in the wheels on the trailer would be an economical compromise. Added bonus-the potential for ground effects.

  • Psarhjinian Psarhjinian on Dec 07, 2009
    Even if the reduction in drag could offset the reduction in carrying capacity, those things will never work because every warehouse in America is designed for a trailer with doors that swing open and flush with the side of the trailer. Just try finding a place to dock that at a Wal-Mart or Home Depot. It ain’t going to happen. If the trailer uses a semirigid fabric or segmented cone that could be pulled back or folded away, it could work.

  • Tassos Chinese owned Vollvo-Geely must have the best PR department of all automakers. A TINY maker with only 0.5-0.8% market share in the US, it is in the news every day.I have lost count how many different models Volvo has, and it is shocking how FEW of each miserable one it sells in the US market.Approximately, it sells as many units (TOTAL) as is the total number of loser models it offers.
  • ToolGuy Seems pretty reasonable to me. (Sorry)
  • Luke42 When I moved from Virginia to Illinois, the lack of vehicle safety inspections was a big deal to me. I thought it would be a big change.However, nobody drives around in an unsafe car when they have the money to get their car fixed and driving safely.Also, Virginia's inspection regimine only meant that a car was safe to drive one day a year.Having lived with and without automotive safety inspections, my confusion is that they don't really matter that much.What does matter is preventing poverty in your state, and Illinois' generally pro-union political climate does more for automotive safety (by ensuring fair wages for tradespeople) than ticketing poor people for not having enough money to maintain their cars.
  • ToolGuy When you are pulled over for speeding, whether you are given a ticket or not should depend on how attractive you are.Source: My sister 😉
  • Kcflyer What Toyota needs is a true full size body on frame suv to compete with the Expedition and Suburban and their badge engineered brethren. The new sequoia and LX are too compromised in capacity by their off road capabilities that most buyers will never use.