Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Default Air-powered cars..... attn PV if he's still around.


So, what would be the size and weight of a spring that would be needed
to propel a one ton car 50 miles?
Similarly, an air tank?

Jordan
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Default Air-powered cars..... attn PV if he's still around.

Jordan fired this volley in news:xQdRo.5880$MF5.3599
@viwinnwfe02.internal.bigpond.com:

So, what would be the size and weight of a spring that would be needed
to propel a one ton car 50 miles?


Well... in THAT technology it was only 20lb., or so. In ours, it would be
MUCH bigger.

OTOH... most cars don't weigh a ton anymore, unless my M-I-L is riding in
the back.

LLoyd
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Default Air-powered cars..... attn PV if he's still around.

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 3.70...
Jordan fired this volley in news:xQdRo.5880$MF5.3599
@viwinnwfe02.internal.bigpond.com:

So, what would be the size and weight of a spring that would be needed
to propel a one ton car 50 miles?


Well... in THAT technology it was only 20lb., or so. In ours, it would be
MUCH bigger.

OTOH... most cars don't weigh a ton anymore, unless my M-I-L is riding in
the back.


Even small cars weigh more than a ton -- I think my Honda Fit is over 2500#.
Miata's may be under a ton, but you can start those cars with 8 D-cell
batteries, iiuc....
The SmartCar is under 2,000# and proly the TaTa, but I think barely a
handful of cars sold in Merka are under 2,000#.

To the other query, these air tanks appear to be the size of a full size
oxygen tank, with two or three lying under the frame, compressed to 4,000
psi. Dats a lot of psi, and mebbe even higher psi can be achieved.
--
EA

LLoyd



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Default Air-powered cars..... attn PV if he's still around.

On Sat, 25 Dec 2010 14:48:48 +1100, Jordan wrote:


So, what would be the size and weight of a spring that would be needed
to propel a one ton car 50 miles?
Similarly, an air tank?

Jordan


Unanswerable, as is how many horsepower-hours are needed to propel
said one-ton car 50 miles. The mass of the car is only relevant if
the car changes elevation in that 50 miles. Rolling friction, wind
resistance, speed and how much braking is done during the trip are
also significant variables.
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Default Air-powered cars..... attn PV if he's still around.

On 12/25/2010 5:21 AM, ATP wrote:

sometimes I think there are about 200 people in all of
usenet...


Before Comcast ran cable through my neck of the woods, I was on dialup.
I was talking to my ISP years ago, trying to resolve an issue with
Usenet. He told me that out of all his hundreds of customers, I was the
only one using Usenet. Maybe he was trying to snow me some, but I have
yet to mention newsgroups to anyone that had any idea what I'm talking
about. So we're certainly a minority of internet users as a whole!


Jon


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Default Air-powered cars..... attn PV if he's still around.

Lloyd E. Sponenburgh wrote:

OTOH... most cars don't weigh a ton anymore, unless my M-I-L is riding in
the back.


My Honda Civic Hybrid has a curb weight of 2877 Lbs, that is a pretty
small car.
I think most other than the super compact models (smarte car and such)
are more.

Jon
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