So this past weekend, whilst changing the oil on our newly acquired 1999 Audi A6 Avant (Mobil 1/Mann Filter) I discovered a trio of NACA ducts in the under-engine aero tray. I have to say that NACA ducts are my jam, and this discovery endears the car to me even more than before.
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Last Call: (Curly Howard voice) NACA, NACA, NACA Edition
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(Chico Marx voice) Why a duct?
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This is the only way I can think of replying to that.
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…and as he leaves the studio, carrying that furshlugginer thing on his back, some wag shouts out, “I bet now you wish they’d named you Piccolo Marx!”
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Amusing car customization seen in traffic today: a receiver hitch cover that’s a replica of a Claymore mine, complete with the famous “Front Toward Enemy” notation. (Hard to see in the photo, since I allowed a proper stopping distance…)
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Now that is cool.
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factory NACA ducts on cars ’90s and newer are the best. you just don’t see them anymore!
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you know what? besides this, a couple of older Evos, and the Viper GTS, i can’t find the classic “flat” NACA duct on pretty much any newer cars.
here is a picture of that Viper. so that you believe me.-
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I dont think the front-facing scoops on the hellcats count as naca ducts. Doesnt have the right shape or opening; I wonder if they are as low drag as a naca
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NACA trivia time! what was the name of the forerunner of NASA?
NACA duct inlets do look cool, but they don’t really work well as air inlets at high speeds. Lockheed found that out while designing the engine air inlets for the P-80 fighter plane. at low speeds, the intricate scrolls along the side edges drew the boundary layer of air into the duct which caused the moving layer above it to follow it into the duct. as airspeed went up, inertia caused the moving air to just blow past it. without the nifty scrolls along the sides, as used in the automotive world, they are less than useless and generate a lot of drag at low speed(<250kts). a round cylindrical scoop of the same opening dimension would allow better air flow and have less drag if properly faired, but then i think the NACA inlet looks a hell of a lot better too!
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Agreed. Bring back the NACA!
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There was an acronym that you were missing. I think you forgot NASA there. So how about some lifting bodies to move some air around.
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That, plus $6 million will get you a man!
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Certain to be immediately run over, wisely NACA ducked.
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ooooooooohh! pretty, pretty…..
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In life there are winners and there are louvers.
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Grate comment!
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So glad this is a place where everyone can vent.
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Be grill my heart!
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Two wheel answer is the 94-97 honda VFR’s, they could not have fit a bigger naca on these i think. The previous gens had little baby ones, and the ones after as well, but for some reason on my 96 it is just awesomely huge.
http://i.imgur.com/RS1FTkKh.jpg -
In sad news for many of us.
R.I.P. Chris Amon, aged 73, due to cancer.
Born: July 20, 1943, Bulls NZ
Died: August 3, 2016, Taupo NZ
Winning Le Mans in the GT40 with co-driver Bruce McLaren
http://media.cdn.mclaren.com/images/heritage/hero/amon_4.jpg
Christopher Arthur Amon MBE was a motor racing driver from New Zealand. He was
active in Formula One – racing in the 1960s and 1970s – and is widely
regarded to be one of the best F1 drivers never to win a championship Grand Prix.
https://en.wikipedia.org/wiki/Chris_Amon-
Terrible news. What a great racer.
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Prayers going up. Great driver. I remember him.
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The first NACA ducts that come to mind on Australian cars
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This Ferrari F40 LM has ALL the NACA ducts :
https://i.kinja-img.com/gawker-media/image/upload/1454962813610846279.JPG -
I’m thinking Fozzie more than Curly.
https://cdn.meme.am/instances/500x/70351750.jpg -
Mann filters – I used them on my ’78 Fox. I bought them at the dealer (along with the copper crush washers for the drain plug). Never bothered to check to see if there was an aftermarket alternative.
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Haha, one would think they could come up with a more popular product with that name. Used a Mann filter on the Honda last week, too. The filter on the Toyota actually said “Toyota/Lexus”, but I didn’t bother to investigate who actually made it.
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“Einbau von Hand” sounds like the name of a villain in a Bond parody.
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The undertray for my A4 is a work of art.
Hasn’t been on the car for at least eight years, though. No idea where it is right now. -
Along with NACA ducts in that under-tray, the other aero angle here is all those Dzus fasteners that hold that tray on. And yeah, I still miss my A6 Avant.
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