Airless tire test Humvee vs Hummer
Non-pneumatic tires (NPT), or Airless tires, are tires that are not
supported by air pressure. They are used on some small vehicles such as
riding lawn mowers and motorized golf carts. They are also used on heavy
equipment such as backhoes, which are required to operate on sites such as
building demolition, where tire puncture is likely. Tires composed of
closed-cell polyurethane foam are also made for bicycles and wheelchairs.
The main advantage of airless tires is that they cannot go flat, but they
are far less common than air filled tires.
Airless tires generally have higher rolling resistance and provide much
less suspension than similarly shaped and sized pneumatic tires. Other
problems for airless tires include dissipating the heat buildup that occurs
when they are driven. Airless tires are often filled with compressed
polymers (plastic), rather than air.
Michelin is currently developing an integrated tire and wheel combination,
the "Tweel" (derived from "tire" and "wheel," which, as the name "Tweel"
suggests, are combined into one new, fused part), that operates entirely
without air. Michelin claims its "Tweel" has load carrying, shock
absorbing, and handling characteristics that compare favorably to
conventional pneumatic tires. Automotive engineering group of mechanical
engineering department at Clemson University is developing a low energy
loss airless tire with Michelin through the NIST ATP project.
Resilient Technologies and the University of Wisconsin--Madison's Polymer
Engineering Center are creating a "non-pneumatic tire", which is basically
a round polymeric honeycomb wrapped with a thick, black tread. The initial
version of the tire is for the Humvee and is expected to be available in
Naked surfing girls
Scary Thrills: 2009 Campagna T-Rex Road Tested by Inside Line
2009 Campagna T-Rex 1400R Full Test and Video
For similar content:
Ariel Atom Road Test: http://www.youtube.com/watch?v=8SloIhHhtN8
Aptera 2e Feature: http://www.youtube.com/watch?v=r_JV6QUIu5s
Campagna Motors builds its line of three-wheelers by hand in Montreal,
Quebec (what is it about Quebec and three-wheelers; there's the Can-Am
Spyder, too). The chassis of the T-Rex is constructed from 1.5-inch tubular
steel and then covered in fiberglass body panels. This three-wheeler
utilizes a double-wishbone suspension at each front wheel and a traditional
motorcycle-style swingarm in the rear. Mounted behind the driver and
passenger is a 197-hp, 1,352cc inline-4 engine and six-speed sequential
manual transmission lifted from the Kawasaki Ninja ZX-14 — one of the
quickest and most powerful motorcycles made today.
2011 Imperial Speeder HoverBike Concept
- - - I DID NOT CREATE THIS HOVERBIKE. Also, please try not to get involved
in the huge Creationist/Evolutionist row going on in the comment section. -
Traffic jams could soon become a thing of the past thanks to an amateur
inventor who has built the world's first flying motorcycle in his garage.
Australian Christopher Malloy ploughed his entire life-savings into the
project which took him two and a half years to complete. His futuristic
creation - dubbed the Hoverbike - can reach an altitude of 10,000ft and
speeds of over 100mph.
Fans of the design have already compared Mr Malloy's work to the 'speeder
bikes' from the Star Wars sequel Return Of The Jedi or the hovering car
from Back To The Future.
The 32-year-old former helicopter pilot built the incredible machine in his
Sydney garage using a custom-built carbon-fiber airframe and a BMW engine.
The futuristic prototype has the potential to travel up to 92 miles or for
about 45 minutes on one tank of fuel and is expected to come with a hefty
price tag of more than £45,000.
So far the bike, which weighs 270kgs, has only been tested while tethered
to the ground to prevent it flying too high. But plans to test it's
capabilities without any restrictions are set to go-ahead soon.
Mr Malloy explained: 'I am still ground testing at the moment only because
I'm not 100 per cent sure what will happen so the straps are there to cover
the unknown. I haven't had the pleasure of flying round the countryside
'It is quite stable and doesn't want to tip over but if something unplanned
happened during testing I wouldn't want to break the prototype.
'The Hoverbike was built with safety in mind so at least three components
have to fail before you might have a serious airborne failure.
'There are also two explosive parachutes attached to the airframe and of
course the rider could choose to wear their own parachute too.
Mr Malloy is unwilling to reveal exactly how much he has spent on the
project, but claims it is costing him roughly £140 a week.
He said the basic principle was similar to that of a Chinook helicopter and
a normal motorbike.
He added: 'To lift off into a hover you just need to increase the thrust
via a throttle grip with the right hand - exactly the same as the throttle
on a motorbike.
'Flying forward involves a combination of an increase in thrust and the
deflection of air from the front control vanes by twisting the left handle
grip. You twist forward to accelerate and backwards to reverse.
'To make the bike turn left and right, all one needs to do is push the
handle bars down on the side you wish to turn just like a bicycle.
'You could lean in the appropriate direction as you would on a motorbike
but this isn't proving to be very sensitive.
'Having previous experience in a helicopter or plane would be a great help.
That said, this is a new way to fly and one would need to learn to ride the
hoverbike in much the same manner as a helicopter or riding a motorcycle.
'If you live in the USA or your country has similar civil aviation
regulations, then the hoverbike will be classed as a 'ultralite' which
means you do not need a pilot's license to fly it.'
Bugatti Veyron vs BMW M3
An airstrip drag race between a Bugatti Veyron and Dutch racing driver
Ho-Pin Tung in a new E92 M3.
View the original on: http://www.autojunk.nl/2007/09/bugatti-Veyron-vs-bmw-m3
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