Very interesting is leg-up which allows you driving with them down, which can be seen in this youtube movie.
dinsdag 26 februari 2013
Motorcycle Landing gear
Large motorcycles are often too heavy to comfortably/safely keep upright at very low speeds or while standing, so why not add a landing gear.
Very interesting is leg-up which allows you driving with them down, which can be seen in this youtube movie.
Very interesting is leg-up which allows you driving with them down, which can be seen in this youtube movie.
zaterdag 23 februari 2013
KIA Rio eco mod 2
The second version of the KIA Rio eco mod is finished.
This versions has:
- an aerodynamic nose
- a longer boattail, the vehicle is now 2m longer than the 4m original
- an aerodynamic, ie. flat smooth underbody.
Youtube movie here.
Below rendering of :
- the original (because I suspect not many know it that well),
- the 1 m longer aeromod without changing the rearwheelposition inwards and or changing the front.
- the 2 m longer aeromod, with aero-nose.
This versions has:
- an aerodynamic nose
- a longer boattail, the vehicle is now 2m longer than the 4m original
- an aerodynamic, ie. flat smooth underbody.
Youtube movie here.
Below rendering of :
- the original (because I suspect not many know it that well),
- the 1 m longer aeromod without changing the rearwheelposition inwards and or changing the front.
- the 2 m longer aeromod, with aero-nose.
VW XL1 0,9 L car 235mpg
235 mpg, 1L per 100km,
Volkswagen claim to have designed the most economical production car ever and are now saying they will start. ? have started? production.
The car is a further development of a model they showed about 10 years ago.
The numbers they present are astounding:
- Cw = 0,186
- 1L for 111km on the standard testcircuit.
- CO2 24 g/km
- 975kg
The VW XL1 is a plug-in hydbrid with a 0,8 litre two cilinder TDI (35kW) in cooperations with a 20kW electric motor and a 7-step DSG transmission. The systems also has a lithium-ion battery-pack, which alows for a 40km electric range (which shows how small the pack is, I guestimate about 2kWh)
The electric motor is used in regenerative braking.
youtube
volkswagen website here they write that the XL1 is built in Osnabrück and that they are arranging this factory so that the complete vehicle is built there (which is unique in the current car production methods), it is the most aerodynamic production car ever and they call it a 0,9L car!! It remains unclear when, where, at what price it is available.
In their background article, they also write that the vehicle will have a CFK (carbon fibre, prepreg) monocoque. The use of CFK is the key in decreasing the weight of the vehicle the other dominant factor in fuel consumption.
This use of Carbon fibre prepregs and the resulting thickness brings mainstream car manufacturing close to what the bicycle streamlining guys have been doing for years.
My own motorcycle project will have to be reconsidered?
The photographs are a bit confusing as are the youtube movies of tested prototypes, dual? wingdoors.
When will it really be available?
The original 2002 test version, looking a bit more extreme. VW has been very quiet about the further development of this vehicle.
Volkswagen claim to have designed the most economical production car ever and are now saying they will start. ? have started? production.
The car is a further development of a model they showed about 10 years ago.
The numbers they present are astounding:
- Cw = 0,186
- 1L for 111km on the standard testcircuit.
- CO2 24 g/km
- 975kg
The VW XL1 is a plug-in hydbrid with a 0,8 litre two cilinder TDI (35kW) in cooperations with a 20kW electric motor and a 7-step DSG transmission. The systems also has a lithium-ion battery-pack, which alows for a 40km electric range (which shows how small the pack is, I guestimate about 2kWh)
The electric motor is used in regenerative braking.
youtube
volkswagen website here they write that the XL1 is built in Osnabrück and that they are arranging this factory so that the complete vehicle is built there (which is unique in the current car production methods), it is the most aerodynamic production car ever and they call it a 0,9L car!! It remains unclear when, where, at what price it is available.
In their background article, they also write that the vehicle will have a CFK (carbon fibre, prepreg) monocoque. The use of CFK is the key in decreasing the weight of the vehicle the other dominant factor in fuel consumption.
This use of Carbon fibre prepregs and the resulting thickness brings mainstream car manufacturing close to what the bicycle streamlining guys have been doing for years.
My own motorcycle project will have to be reconsidered?
The photographs are a bit confusing as are the youtube movies of tested prototypes, dual? wingdoors.
When will it really be available?
The original 2002 test version, looking a bit more extreme. VW has been very quiet about the further development of this vehicle.
donderdag 21 februari 2013
Friedenstaube
Killinger und Freund motorcycle of the end of the second World War, which they called "Friedenstaube" (Peace Dove) makes you think about the current motorcycle design.
Its fate is a bit unclear, trawling the internet seems to indicate that is was bought by Europeans with the intention to restore it.
Have a look at this webpage and its links.
This youtube movie.
Its fate is a bit unclear, trawling the internet seems to indicate that is was bought by Europeans with the intention to restore it.
Have a look at this webpage and its links.
This youtube movie.
woensdag 20 februari 2013
Monotracer
Peraves claims th old word, monotracer, for a car with a single track/trace.
After their ecomibile the Monotracer and particularly the e-tracer the winner of the X-prize set the bar for the rest.
After their ecomibile the Monotracer and particularly the e-tracer the winner of the X-prize set the bar for the rest.
maandag 18 februari 2013
zaterdag 16 februari 2013
Honeycomb surfboard
Mike Grobelny, mad this phantatsic cnc machined wooden honeycomb surfboard.
There is his own blog
and a blog of a fan, about the process.
and the inevitable youtube movie, with the whole process of building.
There is his own blog
and a blog of a fan, about the process.
and the inevitable youtube movie, with the whole process of building.
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