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Old 05-01-2019, 04:23 PM   #11 (permalink)
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Coroplast? Brake it at an angle to the corrugations to stiffen it.

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Old 05-02-2019, 05:40 PM   #12 (permalink)
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I'm thinking of adding a "Belly Pan" to the trailer (Something light, like Formica) to keep the airflow from hitting the frame cross members. Also, surrounding the axle with an air foil (Red Oval)
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Old 05-02-2019, 07:50 PM   #13 (permalink)
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Give the air foil a negative camber to keep the wheels on the ground at speed.

1/8" sheet ABS could be heat-formed, Formica not so much.
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Old 05-02-2019, 08:36 PM   #14 (permalink)
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Quote:
Originally Posted by freebeard View Post
Give the air foil a negative camber to keep the wheels on the ground at speed.
Yes. I just did a quick dirty job with Paint XP. I know the rear of the air foil needs to be tapered to a point, and the profile needs to be more like an airplane wing.

I like the idea of wheel pods.

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1/8" sheet ABS could be heat-formed, Formica not so much.
Yeah, the Formica, or whatever, belly pan only needs to be flat. I thought of dropping it down in the middle to under the axle, but I think that extra frontal area would cause a higher CDA than just sealing the frame, and using an airfoil on the axle.

Do you think these additions are aerodynamically advantageous, or to much trouble for the return?
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Old 05-02-2019, 09:24 PM   #15 (permalink)
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I'd not cover the axle, but radius the edges and cover the bottom half of the carrier up to the clamshell lip.

The wheel pants need to open up for access. Either Dzus fasteners, and a hinge at the top or pivot at the front to butterfly open.
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Old 05-02-2019, 09:55 PM   #16 (permalink)
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I'd not cover the axle, but radius the edges .
Like this?
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Old 05-02-2019, 11:50 PM   #17 (permalink)
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Quote:
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cover the bottom half of the carrier up to the clamshell lip.
Actually, I was thinking of filling the gap with a triangular box, with the apex just behind the coupler.
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Old 05-03-2019, 03:03 AM   #18 (permalink)
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I think I could make this pretty easy:
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Old 05-03-2019, 12:27 PM   #19 (permalink)
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Quote:
Originally Posted by myself
I'd not cover the axle, but radius the edges and to cover the bottom half of the carrier up to the clamshell lip.
Edges of the frame not the axle.
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Old 05-03-2019, 01:09 PM   #20 (permalink)
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Is this getting closer? Do you not think the 1.25" axle needs rounding pieces?

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