I found an interesting technical tidbit about the Delta--the car's entire braking system (all 4 wheels combined) weighs a scant 29.2 pounds!
Le Mans Le Mans and the WEC
- Thread starter siffert_fan
- Start date
soccerman17
Race Winner
These F1 teams should try and learn a lesson from the Delta Wing. 8 hours on Michelins equates to about 1 on Pirellis, better than most of them can do! Seriously, though, does that extremely low tire wear have anything to do with the tires staying grounded all the way around?
I should probably clarify the point about the DeltaWing tyres - the entire test session was eight hours, but as in any test the car was in and out of the pits for setup and driver changes and so on. They did in fact complete 53 laps on a single set of slicks, which equates to around 450 miles of running, or about 3 1/2 - 4 hours.
http://www.radiohotlap.com/2012/2012/06/04/deltawing-rocks-le-mans-24h-test-day/
http://www.radiohotlap.com/2012/2012/06/04/deltawing-rocks-le-mans-24h-test-day/
First qually results
Delta wing car in 26th
Delta wing car in 26th
Fenderman
Rooters Reporter
Hmm, indeed they (or should that be "it") does, but slow. Unless they improve their lap times, in the race they will be lapped every 10 laps. Although I thouught competing with P1's was a bit of an ask, I did wonder if they would be competiitive with the P2 class prototypes. If the concept is worth anything they really need to beat the P2's or at least split the top four.
It's an interesting concept but intrinsically flawed. One only has to compare the stability of sitting on a 3 legged stool against that of being sat on a 4 legged stool to understand the problem. The justification for the design appears to be about maximising the efficiency of the aerodynamics so that the car will meet less air resistance due to its reduced frontal area. However, that doesn't help confer adhesion to the track. The reason Le Mans prototypes have flat floors is to induce ground effect and the body shape and spoilers induce downforce. The Delta Wing is lacking in both those areas due to the reduced surface area of the aero surfaces on top and beneath the chassis. Couple that with the inherent instability of a 'tripod' footprint compared to a 'quadrapod' footprint and basically one has a "lemon at Le Mans".
http://www.deltawingracing.com/news/2012/6/11/so-how-does-the-nissan-deltawing-work.html
A three legged stool will generally be more stable than a four legged.
Fenderman
Rooters Reporter
http://mathforum.org/library/drmath/view/53267.html
"There are different kinds of stability! A three-legged stool is
guaranteed not to wobble, because the ends of its legs always form
a plane. But a little wobble is only an inconvenience. More important
for practical purposes, such a stool is LESS stable than one with more
legs in the sense that its center of gravity is further inside its
base: the more sides a regular polygon has, the greater its apothem
(the distance from the center to the middle of an edge). That greater
distance means that the sitter can lean farther out in any direction
without tipping over. So if you don't mind a little tipping but don't
want to fall on your face, or if you have a reasonably even floor,
more legs are better. In a barn, I'll take the three-legged stool
over the upholstered desk chair any time!"
If you have any further questions, feel free to write back.
- Doctor Peterson, The Math Forum
"There are different kinds of stability! A three-legged stool is
guaranteed not to wobble, because the ends of its legs always form
a plane. But a little wobble is only an inconvenience. More important
for practical purposes, such a stool is LESS stable than one with more
legs in the sense that its center of gravity is further inside its
base: the more sides a regular polygon has, the greater its apothem
(the distance from the center to the middle of an edge). That greater
distance means that the sitter can lean farther out in any direction
without tipping over. So if you don't mind a little tipping but don't
want to fall on your face, or if you have a reasonably even floor,
more legs are better. In a barn, I'll take the three-legged stool
over the upholstered desk chair any time!"
If you have any further questions, feel free to write back.
- Doctor Peterson, The Math Forum
He's talking bollocks.
Qually results.
Hydrid Audi on pole
Hydrid Audi on pole
Coverage is on British Eurosport and Eurosport HD
Starts Saturday 3pm
Starts Saturday 3pm
Practice has just been red flagged due to heavy rain and multipul off's.
I hope siffert_fan isn't camping.
I hope siffert_fan isn't camping.
Live timing and footage at http://live.lemans-tv.com/en/
Unscheduled stops for three of the four Audis, Toyotas so far running trouble-free.
Unscheduled stops for three of the four Audis, Toyotas so far running trouble-free.
Who are the guys presenting from the studio?
