Aerodynamic streamline template - online tool (view streamlined extension on any car)

[freebeard]

Do you have a dream or do you have pieces and parts [and a dream]?

You give a width and boat tail length, but what are the overall length and hitch to axle length? What would the central angle be? How many panels total?

edit: OTOH you might look at what Aptera have done.

Originally Posted by aerohead

I've lost my source for posting images, and awaiting an acquaintance's finishing her Masters in Design. She's going to help me come back up to speed on sharing the dimensional analysis materials.

Any developments here?

[skyking]

The living space is 24' long. If I reserve 2' at the front for radiusing, and 3' at the back to transition to the 3' long trunk I have 19' or 228"
If I go transverse that is 5 panels. first one is flat.
I'd get 4 bends and I was figuring a 3 degree would not trip too hard. I can put a 1" long blend between each so it is not a crisp corner.
3 degrees is about 3" per 45" panel.
I'd wash the flat out in the 3' transition to a more ideal curve, and then the 3' trunk area would continue with getting the air lined up and leaving with a smaller surface area.
Curves are hard. The roof retracts 30" and I do want plan taper but not a continuous compound curve. It will get some blend to a 3 degree taper some point aft of the door.
I can build that without too much angst.
It's a 5th wheel so the axles position and overhangs are not a big problem. It tapers up aft of the axles with about 7' of overhang.
It is 90x90 frontal area minus 12" ground clearance, and will have a ~70" high by ~70" wide afting area minus the 18" bumper height.
LOA is 27'
48.75' frontal area and 25.3' departure area.

5 x 450 Watts is a decent 2250 watts of fixed panels.

[aerohead]

Originally Posted by freebeard

Do you have a dream or do you have pieces and parts [and a dream]?

You give a width and boat tail length, but what are the overall length and hitch to axle length? What would the central angle be? How many panels total?

edit: OTOH you might look at what Aptera have done.



Any developments here?

I never heard another word from her.
I did locate a graphic artist at another copy center, but he can't help with posting images.
Supposedly, If I can get images into FACEBOOK, I can use it as a third-party host, then link from there.

[freebeard]

I'd get 4 bends and I was figuring a 3 degree would not trip too hard.

Witness the Cybertruck. Bevels are't necessarily a liability.

Consider longitudinal orientation. Two wide and three long. Add a ridgeline, maybe a 2 or 3 in 12 pitch. That would kill lift if the thing gets sideways (NASCAR mandates fences for that reason). You still get two lateral breaks. And the panels could hinge at the ridgeline to lift whichever side is in the shade.

Past some certain point in the fineness ratio, a box van is treated differently than a compound curved body. The disruption at the front end reattachs along it's length and then a bevel (trailer tail) or plasma actuators shrinks the wake at the rear. This preserves interior volume.

[freebeard]

I never heard another word from her.
I did locate a graphic artist at another copy center, but he can't help with posting images.
Supposedly, If I can get images into FACEBOOK, I can use it as a third-party host, then link from there.

Let us help.

Firstly, consider the larger picture. There is an epic battle between Good and Evil raging on Internet. On the one hand you have systems of control, like (but not exclusive to) social media; on the other, free speech platforms like 4chan (it's back}.

Shun MySpace, Facebook, BlueSky and the others.

If you have the images, and you can post on EcoModder; then why not add to or add new albums to what you already have? You must've done it once already, right?

[Xist]

I post images to Imgur, which are higher-resolution than Ecomodder allows, but I upload them here because it seems like files disappear everywhere else.
I use the Imgur ones because they are bigger, but attach ones here for backup.

[skyking]

Originally Posted by freebeard

Witness the Cybertruck. Bevels are't necessarily a liability.

Consider longitudinal orientation. Two wide and three long. Add a ridgeline, maybe a 2 or 3 in 12 pitch. That would kill lift if the thing gets sideways (NASCAR mandates fences for that reason). You still get two lateral breaks. And the panels could hinge at the ridgeline to lift whichever side is in the shade.

Past some certain point in the fineness ratio, a box van is treated differently than a compound curved body. The disruption at the front end reattachs along it's length and then a bevel (trailer tail) or plasma actuators shrinks the wake at the rear. This preserves interior volume.

The panels are going to be fixed for reasons of strength and simplicity and speed of deployment. I would not tent the roof that much if I went longitudinally, so the offside penalty would not be significant.

[aerohead]

Originally Posted by freebeard

Let us help.

Firstly, consider the larger picture. There is an epic battle between Good and Evil raging on Internet. On the one hand you have systems of control, like (but not exclusive to) social media; on the other, free speech platforms like 4chan (it's back}.

Shun MySpace, Facebook, BlueSky and the others.

If you have the images, and you can post on EcoModder; then why not add to or add new albums to what you already have? You must've done it once already, right?

I have the original 770-images I lost on Photo-Bucket on a thumb drive, plus more recent materials, but when Copy-Pro closed, I lost all ability to share, as I'd relied on Al Glidewell since 2005 to help me with all that.
He couldn't take the time to teach me the hundreds of keystrokes it took him, and I would never have had the time it would have taken to learn them.
Some single images literally required 40-hours of drafting at home to create something to scan.

[freebeard]

I always wondered how you populated your EcoModder albums. A. Glidewell did it for you?

In your albums there is an Upload Pictures button (upper left). Click that and you are asked to navigate to your thumb drive where you can pick up to three images at a time. Succeed in that and click a button to confirm.

Rinse and repeat.