You’re engaged in some innocent retail therapy and then this beams down from planet Piëch.
As we’ve pointed out, Driven to Write never sleeps and while we don’t always get about as much as we’d like, our eyes and ears are everywhere. So while some of us are battening down hatches in windswept West Cork, others get to swan around a decidedly more temperate Marbella – a matter for which your correspondent is not bitter. Continue reading “Photo for Sunday – Volkswagen XL1”
Mercedes-Benz gets aero on everyone’s ass at Frankfurt.
While this week’s Frankfurt show-stopping Porsche Mission E concept appears to offer a vision of the future where (Porsche) drivers are offered the very latest propulsive technology wrapped up in a reassuringly familiar (if nicely proportioned) package, Mercedes-Benz have taken a sharply divergent approach; Daimler’s brave new world being a starker affair altogether. Continue reading “Mercedes’ Movable Feast”
We ask whether aerodynamics’ post-war, post-aviation beginnings have anything in common with tomorrow’s hydrogen-powered wonders.
To be fair, car manufacturers have historically enjoyed a rather patchy relationship with the concept of aerodynamic theory. During the post-war period only a handful of motor manufacturers paid more than lip service to the concept and of those, most had their origins in aircraft manufacture. Bristol and Saab, for example both needed to diversify during post-war austerity when demand for their mainstay aircraft businesses collapsed in peacetime. Continue reading “Aerodynamics: The Shape We’re In”
What you’re looking at here is the last of the pure streamliners – the 1964 Panhard CD Le Mans. This Index of Efficiency contender for the 1964 Le Mans race boasted a drag co-efficient of a mere 0.12, reputedly the lowest of any racing car to date. This car is significant for two reasons: Continue reading “Theme : Aerodynamics – Index of Efficiency”
Britain’s Aerodynamic Pioneers – Frank Costin and Malcolm Sayer profiled.
In the years prior to World War Two, developments in aeronautics led to rapid growth in the science of aerodynamics. Through the war years, aerodynamicists continued the pioneering research begun during the 1930’s into streamlining, but now with an added dimension – applied science. The use of wind tunnels allowed engineers to properly assess the behaviour of aircraft in simulated flight and more accurately determine the most efficient shapes. Continue reading “Theme : Aerodynamics – The Great Curve – Costin and Sayer Part One”
Driven To Write attempts to decipher an aerodynamic staple but finds the going surprisingly turbulent.
In architectural terms, a buttress is defined as a structural member built against or projecting from a wall serving as a support or reinforcement. They were more prevalent at a period when structural engineering was more of a naive art, employed as a support against sideways forces. As architect’s skills developed, the need for buttressing decreased, latterly viewed as something of an admission of failure, much like an air dam or spoiler in automotive terms. There are several types of architectural buttresses, the most visually spectacular probably being the ‘flying buttress’, a structural device used in the design of many Gothic cathedrals.
Some things, as they say, do just what it says on the tin. To my mind, the rear boot excrescence is generally well named. There are some exceptions but, generally, if a car’s designed right, it shouldn’t need an add-on. And, if it does, what about those poor buggers in lesser variants who can still get within 20 kph of the bespoilered version. Are they safe?
Not all aerodynamic cars have to draw on the same set of forms. The 2010 Kia Ray (or PHEW Ray) manages to look slippery without resembling a blend of Tatra and Citroen shapes.
The most distinctive element is the Kamm tail, a feature Alfa Romeo and Zagato used in 60s. The very sharp rim that defines the cut-off tail is there to improve the airflow break-away. A rounded edge would cause more turbulence (that´s why the tail of the first Audi TT has a small lip attached on the bootlid). Continue reading “Theme: Aerodynamics – 2010 Kia Ray”
The first cars were not fast enough for anyone to be particularly concerned about the amount of air that stood in the way of their progress. Therefore, although drivers soon learnt to hunch themselves over the wheel to reduce the passing air’s effect on themselves, it took longer to realise how important it might be to reduce their effect on the passing air.
Before we come to Aerodynamics, we must come to Streamlining. Streamlining is not the father of Aerodynamics, it is the somewhat camp uncle. Streamlining is to Aerodynamics as Gastronomy is to Nutrition. It is more fun. Although based on the concept that air should pass unhindered over the vehicle body, Streamlining was not usually scientific. It was sometimes based on theory and experimentation, Continue reading “Theme : Aerodynamics – Introduction”