I'm not sure one can be a tad 'anal retentive'. But that's another subject...

here is the info on the AIRPLANE spiroid..

Aviation Partners Inc - The Future is on the Wing

Here's the image...


FWIW, back in the late 80s, early 90s, Lockheed floated a concept airplane that never got off paper. I think we talked about it on this forum but it was a 'ringwing' with a wing that was essentially a large ovoid and was attached to a large vertical fin for rigidity.

In this PDF, look at figure 16 and you will see the McDoug offering for an MD-80 with a 'ringwing'.

http://tinyurl.com/64jprh