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Old 01-10-2021, 03:05 PM   #611 (permalink)
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jULIANeDGAR would approve. It might make for a new pinewood derby race category.

I'd more likely use it as a means of learning the physics engine in Blender.
Golly, yes! Down the hill, over the jump, and coast to the finish would make a much more interesting event. Also, the current winning formula for pinewoods is having all the ballast at the back, so it is higher at the start. There will be tradeoffs to make.

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Old 01-10-2021, 08:04 PM   #612 (permalink)
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Aircraft have no trouble flying upside down by adjusting that a few degrees.
I would be quite concerned about having an adjustable pitch trim in a racing car. Besides an eventual need to operate it manually, the risk of getting it damaged by some debris while off-roading would be also troublesome.
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Old 01-10-2021, 08:14 PM   #613 (permalink)
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I would be quite concerned about having an adjustable pitch trim in a racing car. Besides an eventual need to operate it manually, the risk of getting it damaged by some debris while off-roading would be also troublesome.
No moving parts needed - the whole car can pitch easily, and we are discussing ways to keep it from doing so.
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Old 01-10-2021, 08:31 PM   #614 (permalink)
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No moving parts needed - the whole car can pitch easily, and we are discussing ways to keep it from doing so.
OK. IIRC some acrobatic aircraft have fixed slots at their wings leading edges instead of retractible slats.
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Old 01-11-2021, 04:48 PM   #615 (permalink)
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I think he's saying a few degrees of angle of attack. Race classes may forbid control from the driver seat.


Interesting details on the car Singer took inspiration from.
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Old 01-11-2021, 04:57 PM   #616 (permalink)
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I think he's saying a few degrees of angle of attack. Race classes may forbid control from the driver seat.


Interesting details on the car Singer took inspiration from.
As soon as they say "The Porsche 959 has nearly the same downforce at both low and high speed..." you immediately know they have no idea of what they're talking about.

Pity - it would be great to see some really good tech info on this car.
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Old 01-11-2021, 05:16 PM   #617 (permalink)
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Have you personally measured and can attest to the downforce on these [six] specific cars?

We're all in Plato's cave; at least the shadows are RBG.
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Old 01-11-2021, 05:17 PM   #618 (permalink)
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As soon as they say "The Porsche 959 has nearly the same downforce at both low and high speed..." you immediately know they have no idea of what they're talking about.

Pity - it would be great to see some really good tech info on this car.
. . . unless downforce = 0.
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Old 01-11-2021, 05:19 PM   #619 (permalink)
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Have you personally measured and can attest to the downforce on these [six] specific cars?
Downforce varies as the square of the speed.

It's exactly the same as if the video said that drag force is the same at high and low speeds.

Last edited by JulianEdgar; 01-11-2021 at 05:41 PM..
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Old 01-11-2021, 05:47 PM   #620 (permalink)
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. . . unless downforce = 0.
Yes, true!

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