Re: ELECTRIC CARS MUST BE CARBON FIBRE 300KG (NOT 3 TONNES!)

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Article #4896

#4896

From: Graham Cooper
Date: Tue, 14 Aug 2012 02:19

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On Aug 14, 10:55 am, Sylvia Else <syl...@not.at.this.address> wrote:
> On 14/08/2012 7:55 AM, Graham Cooper wrote:
>
> > Electric Cars will need a 5 KILOWATT Engine
> > (2 AIRCONDITIONERS WORTH OF POWER)
>
> > NOT a 100KW ENGINE (50 AIRCONDITIONERS POWER)
>
> The power requirements of a vehicle are not just a function of its mass.
> At higher speeds, wind resistance is a major factor, and won't be
> changed by making the vehicle lighter.
>
> Sylvia.

Wind resistance is a square law to velocity, not even a factor in
suburbs.

Major highways could be 2 lane with an 80km/hour left lane for
electrics and mules.

My 2 favorite highway cars are the Lancer and Cruze.

The spoiler on each makes a big difference even at relatively low
speeds of 100km/hour when wind resistance is just starting to factor.

http://www.carsguide.com.au/images/uploads/holden-cruze-2011-w.jpg

Feels like driving on the moon, you don't notice the drag at all!

Herc

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From: Graham Cooper <grahamcooper7@gmail.com>
Newsgroups: sci.skeptic,aus.tv,aus.cars,sci.physics,alt.sci.physics
Subject: Re: ELECTRIC CARS MUST BE CARBON FIBRE 300KG (NOT 3 TONNES!)
Date: Mon, 13 Aug 2012 19:19:44 -0700 (PDT)
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