Thread: Duct Duct Go
View Single Post
Old 03-10-2021, 07:33 PM   #1 (permalink)
freebeard
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 29,344
Thanks: 8,347
Thanked 9,111 Times in 7,524 Posts
Duct Duct Go

It's been a while since I had an idea that is unquestionable excellent (at least IMHO).

I'll list my sources later, but I've been frustrating myself with the 3D software so I went back to what works, pencil drawing, 5 Megapixel camera, slam the brightness and contrast and reduce in the GIMP. Took about 1/2 hour.



Pix on request, but off the top
  • the Austin Windmobile
  • Jetopera
  • Dyson Bladeless fan
  • my earlier Coanda boat tail
  • VW GTI W-12 650

Essentially, this: The exhaust on the flat four consists of four J-tubes joined with a 90 degree elbow. So two upward facing exhausts close behind the rear wheels. These are centered in rerouted cooling air ducts that flow upward on either side of the rear window.

<stainless steel|aluminum>

The rear wing is an aluminum tube bent to shape and then slit end to end somewhere on the inner side TBD. Small wedges are inserted and twisted to part the two edges by a fraction of an inch and then spot welded.

This become a spar for an airfoil. While the tube is perpendicular the leading and trailing edge will be more like Colani or the Porsche 959. I propose a 1/18th scale model next because I have one I don't like the color of.

Good Lord willin' and the creek don't rise, I might have more later.

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

___________________
.
.
Impossible is just something we haven't done yet. -- Langley Outdoors Academy
  Reply With Quote
The Following 4 Users Say Thank You to freebeard For This Useful Post:
Cd (03-12-2021), JacobLeSann (03-11-2021), Piotrsko (03-11-2021), redpoint5 (03-10-2021)