Interesting Aerodynamic Cars (Mike Vetter's ETV, also Avion)

[freebeard]

An uninformed opinion? For my son's third birthday I took him for a ride in a light plane at the local airport (we flew over our house). The first time the pilot banked into a turn he said "Don't make it crash".

[kach22i]

Originally Posted by samwichse

From that thread:

The first time I saw one of those "lean machines" on TV I thought it was going to tip over too.

We just are not used to seeing vehicles lean that much, and motorcycles lack the mass to make it look scary or unnatural in my opinion, plus we have all ridden bicycles and accept it as normal on two wheelers.

Short video below.................

https://www.youtube.com/watch?v=ngn7Io4HtdU

Longer video below............$1.34 a gallon - oh the outrage of it all. Or is it 34 cents a gallon?

https://www.youtube.com/watch?v=hquV8QB8xtk

http://thenewcaferacersociety.blogsp...n-machine.html

"The GM Lean Machine was developed by Frank Winchell of General Motors (USA) in the early 1980's as a concept car. The single seater vehicle is a "lean" machine in the true sense of the word as it leans into corners like a motorcycle whilst keeping the stability of a normal car. The original model was powered by a 15 hp 2-cylinder engine that produced a maximum speed of 80 mph with a fuel economy of 80 mpg at 40 mph. Shortly afterwards a second model was produced that was powered by a larger 38 hp engine. With a total body weight of 159kg this gave the vehicle outstanding performance and the Lean Machine was able to reach 60 mph in just 6.8 seconds with a fuel economy of over 200 mpg."

[samwichse]

Oh, that's the disconnect... they're talking about a car/trike that leans WITH the turn, not lean as in body roll. LOL

[kach22i]

Originally Posted by samwichse

Oh, that's the disconnect... they're talking about a car/trike that leans WITH the turn, not lean as in body roll. LOL

I'm not sure how to take your comment. Sounds like you have not explored any of the links provided, looked at the construction photos, and other projects that lead to this creation.

Out of a half dozen or more positive comments from the .au forum, one was negative, and that gets posted - WTF?

I guess haters gotta hate.

For everyone else there is a learning curve before one open's their mouth, it's called "RESPECT".

If you cannot respect someone else's work and have not done better yourself then I have no use for you.

Tracer MK II
Mike Richardson - Design



Click the link above to see illustrations of how the front geometry works.

Tracer MK I 1997
http://www.mikerichardson.net.au/tracer1.shtml

According to the Australian Design Rules, the millennium motor cycle is classified as an LEP2 type vehicle, that is, it has two wheels at the front and one wheel at the back, and the drivers seat is not of the saddle type. Tracer is unusual because it has the ability to lean up to 37° around corners. This leaning capability works by the balance of the driver, just as a standard 2 wheel motor cycle leans around corners. When the vehicle comes to a stop the leaning brake is applied to stop the vehicle tipping over. The steering linkage system allows the body, and each of the front wheels to remain parallel in section as the vehicle leans, while simultaneously allowing the steering geometry to work properly in plan. Both the front suspension system works at the same stress levels cornering as they do for straight travel, there is also no torsional stress developed in the suspension while cornering. The vehicle is a 'convertible', and is designed to provide the comforts of car driving, combined with the joys of motor cycling.

https://abeautifulcity.com/2013/12/0...december-html/

[Frank Lee]

What mpgs do the Tracers get?

[kach22i]

Originally Posted by Frank Lee

What mpgs do the Tracers get?

It might be on the website, don't know off the top of my head, don't remember reading it.

One of the three Tracer models was based on a Honda 750 if I recall correctly.

Don't think it was exclusively intended as a high mpg model, or at least the highest possible.

Based on reports of it on the road, it's a performance model.

[kach22i]

Random TRANSPORTATION pictures - Page 2171 - Pelican Parts Forums




Could use a longer tail.

[kach22i]

https://www.facebook.com/pages/Lola-...05414969475200





1981
Lola T600
https://en.wikipedia.org/wiki/Lola_T600

The Lola T600 was a racing car introduced in 1981 by Lola Cars as a customer chassis. It was the first GT prototype race car to incorporate ground-effect tunnels for downforce. The revolutionary aerodynamic design of the T600 was widely imitated throughout the 1980s by International Motor Sports Association (IMSA) and Group C prototype cars.

[kach22i]

https://www.facebook.com/pg/amzel.ltd/posts/

[freebeard]

Could use a longer tail.

https://duckduckgo.com/?q=jocko+johnson+wynnsliner

Fast but twitchy handling because of the short wheelbase.