Automotive Aerodynamics (video series)

[freebeard]

Scale models drive me nuts. The difference between 1/24th and 1/25th is enough to cause problems. Let alone 1/32nd and 1/35th.

I believe you have a smart phone? The thing you could do for free is create a 3D model, if only to point to and look at. Then you can move on to the physical model in any scale required.

[aerohead]

Originally Posted by freebeard

6 months away? Sorry I won't be there. But I've worked out a plan to get my car back on the road. There's a lift reserved and I've already started on the payments.

The good news is it will have a 'mileage motor' stroker 1776 with dual Solex carbs. Given my bestest ever 37mpg tank, that should make 40mpg an attainable goal.

It sounds like you're down on Bonneville. For me it's that brine soup I drove through. Remember the coin-op car wash? I don't think my car recovered from that.

I put front pads on the truck,and was appalled to see what the salt bath had done to the rotors.The cooling slots were completely blocked shut with rust!
Gary took a look at Bonneville 'Lake' in 2014,put his tail between his legs,and high-tailed it back to Colorado.He wasn't going to risk getting any of that stuff on his Prius.
I'll go back if it hasn't rained.
Don't put too much more power in the Beetle or you'll have to wear a Hans Device during shifting.Your's is the quickest Vdub I've ever been in!

[freebeard]

I want to know how those rust-brown Model T speedsters do it.



Maybe a static electric charge from the Model T coil?

At the gate the guy told me I could park there and hitch a ride in. I told him I needed a picture of my car on the salt and he just said "I understand."

[aerohead]

Originally Posted by freebeard

I want to know how those rust-brown Model T speedsters do it.



Maybe a static electric charge from the Model T coil?

At the gate the guy told me I could park there and hitch a ride in. I told him I needed a picture of my car on the salt and he just said "I understand."

I've looked around the web and came up empty.
U.S.Steel used to produce a 'COR-TEN' corrosion-resisting bare steel cladding used in commercial architecture (Westinghouse had an office building made of it,located along I-35 between Denton and Austin).
Unless water puddled on it,it was essentially impervious to 'new' oxidation.
The rat rods guys may just wash the 'ell out of their rigs when they get back to dry land.
One former IBM engineer said he parked his car over lawn sprinklers when he got back home.

[Xist]

The conexes we had in Germany (and presumably everywhere else) said to only use COR-TEN steel for repairs. I believe that I saw some rust on them, but very small patches.

[freebeard]

IIRC COT-TEN was developed for railroad hopper cars, where they couldn't keep paint on them. It sort of self-repairs as is wears.

Left alone to weather, it spalls large, thin flakes like de-laminating wafer-board.

I've looked around the web and came up empty.

What did you use for search terms? I think of cathodic protection, but that possibly relies on being immersed in water.

Edit: According to https://en.wikipedia.org/wiki/Cathod...on#Automobiles people who try this get sued by the FTC.

But aluminum is a suitable sacrificial anode. So I'm suspicious. Probably has to do with pulsed DC (DC bias imposed on AC) at some harmonic frequency.

[aerohead]

Originally Posted by freebeard

IIRC COT-TEN was developed for railroad hopper cars, where they couldn't keep paint on them. It sort of self-repairs as is wears.

Left alone to weather, it spalls large, thin flakes like de-laminating wafer-board.



What did you use for search terms? I think of cathodic protection, but that possibly relies on being immersed in water.

Edit: According to https://en.wikipedia.org/wiki/Cathod...on#Automobiles people who try this get sued by the FTC.

But aluminum is a suitable sacrificial anode. So I'm suspicious. Probably has to do with pulsed DC (DC bias imposed on AC) at some harmonic frequency.

I looked for oxidation limited bare steel architectural building cladding.I'd seen it on the Westinghouse office complex and asked about it back in the early 80s.
Gary,who did the videography at Darko,used to be involved with cathodic/anodic protection for buried pipelines.He might be worth some questions.

[freebeard]

If you search on marine+electrodeposition+wolf+hilbertz you find the story of Wolf Hilbertz and 'Biorock' or 'Seacrete'. I used to talk with him by phone. I'll put it this way—he survived his experience with the concrete industry and moved to Germany.

I have his original IEEE paper from his work in the Bermudas—on paper.