Which one is the Revson spoiler is now very confusing to me.
I've got the "GT" from Hall.
I'm going to have to refer back to the magazine road test, if I can find it, that shows Revson with the test car.
That's going to be the only way to clear this in my mind now.
I'm convinced that the car does need something in the front and also that anything you put down there is very vulnerable to just about anything, so as George pointed out, a completely flexible material is probably a mandatory consideration and something that isn't expensive since it's going to likely get wrecked often.
I remember the Revson design projecting out further then the "GT" which is why I selected that one.
It also mounts above the bottom of the sheetmetal under the radiator support.
My local McDonalds has the bottom of my '16 Fusion nose all scraped up because of the angle of the exit ramp to the city street.
I can tell you that these exit ramps, in order to keep people walking from tripping need to be on the ratio of 1/2" change per foot of run. That's "about" what the cars need as well. That's rare to find for paving but required where the Building Departments are involved with site requirements FOR PEOPLE. Cars, that's a different story.
My Pantera is a lot lower then my Fusion and yet my TT has no issues BUT is much shorter from the center of the front wheel arch to the bottom of the nose. Not so the Pantera.
It will never get out of the McDonalds without $4000 worth of body damage.