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-   -   Absolutely most efficient 40 mph transportation? (

extragoode 05-13-2008 01:15 AM

Absolutely most efficient 40 mph transportation?
What's the best reguardless of cost, convience, speed? The only stipulation is it must be able to go at least 40mph, so no bicycles. The best I can see is bennelson's electric Kawisaki and the best production vehicle I've seen to date is NMG!

LostCause 05-13-2008 01:23 AM

Probably an aerodynamic gyro-train running a combined cycle powerplant: high-compression, turbocharged/turbocompounded diesel powering a steam turbine via waste heat. Vacuum sealed gyroscope on superfluid bearings...superconductors used throughout with ultra high efficiency motors/ultracapacitors for the traction drive system. :p


If you meant personal transportation, I'd suspect a faired motorcycle (a la Craig Vetter) would be your best bet.

- LostCause

diesel_john 05-13-2008 01:35 AM

steel on steel
lowest cost per person
one ton of people 480 miles on one gallon

extragoode 05-13-2008 03:50 AM

Well alrighty then.

MetroMPG 05-13-2008 09:59 AM

I'd also guess a fully faired electrically driven motorcycle/trike.

My gyro train has too much frontal area.

ebacherville 05-13-2008 12:42 PM

A very efficient design would be a recumbent trike with a fairing and electric powered, solar charged would be very cost to operate and eco-freindly

biggest hurtles - light batteries.. the newest batteries would do this just fine however costs are very high.

dremd 05-13-2008 07:22 PM

Most efficient at what cost, and what range?

Ryland 05-13-2008 09:05 PM

Why no bicycles? if I stepped my bike up to 72v it should be able to do 45mph.
My comuticar is supposed to do 40mph with a good new set of batteries and with a few upgrades should do 40+, current is 35-37mph with snow tires, needs an alignment and has old abused batteries.
My last Super Mileage Vehicle would do 45mph, got 245mpg, but wasn't road legel, I did build it for about $600 tho.

LostCause 05-14-2008 05:13 AM

Bicycles are extremely draggy, especially at high speeds.

I don't know why I didn't think of this, but right now the most efficient 45mph transportation would be:,0.jpg

If they didn't cost $400,000+, I'd buy one. :)

- LostCause

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