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^^^^911 Meets Tatra?

<iframe width="908" height="514" src="https://www.youtube.com/embed/u1Jhy4K5I7c" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

MIT and NASA engineers demonstrate a new kind of airplane wing
Assembled from tiny identical pieces, the wing could enable lighter, more energy-efficient aircraft designs.
David L. Chandler | MIT News Office
March 31, 2019
MIT and NASA engineers demonstrate a new kind of airplane wing | MIT News
http://forums.pelicanparts.com/uploa...1574294406.jpg

Quote:

While it would be possible to include motors and cables to produce the forces needed to deform the wings, the team has taken this a step further and designed a system that automatically responds to changes in its aerodynamic loading conditions by shifting its shape — a sort of self-adjusting, passive wing-reconfiguration process.

“We’re able to gain efficiency by matching the shape to the loads at different angles of attack,” says Cramer, the paper’s lead author. “We’re able to produce the exact same behavior you would do actively, but we did it passively.”

This is all accomplished by the careful design of the relative positions of struts with different amounts of flexibility or stiffness, designed so that the wing, or sections of it, bend in specific ways in response to particular kinds of stresses.

http://news.mit.edu/sites/mit.edu.ne...?itok=h72LSXyJ

http://news.mit.edu/sites/mit.edu.ne...?itok=89R5nN1-

Quote:

The resulting lattice, he says, has a density of 5.6 kilograms per cubic meter. By way of comparison, rubber has a density of about 1,500 kilograms per cubic meter. “They have the same stiffness, but ours has less than roughly one-thousandth of the density,” Jenett says.

Smart lightning protection skin for real-time load monitoring of composite aircraft structures under multiple impacts
Author links open overlay panel
Yoshiro Suzuki, Toyoaki Suzuki, Akira Todoroki, Yoshihiro Mizutani
https://www.sciencedirect.com/science/article/pii/S1359835X14002437
http://forums.pelicanparts.com/uploa...1574295065.jpg

Quote:

Originally Posted by porsche930dude (Post 10664551)

http://forums.pelicanparts.com/uploa...1574307616.jpg

That's a Dyson... Australian bus. They had 2 engines, in front and rear.

The Santa Fe RailRoad (AT&SF) built buses like that during WW2, out of plywood.
With a powered front bogey.

And the main body was 2 levels

VictoryLiner...

When is a 911E worth more than a Gullwing?

From my February, 1972 Car & Driver magazine:

http://forums.pelicanparts.com/uploa...1574368533.jpg

Perhaps he was more correct than he even knew?

http://forums.pelicanparts.com/uploa...1574368611.jpg