Truck parts Dynamometer.

[einarp]

>Other stupid ideas......
>Build a back yard dyno out of a truck axle..... 

Not so stupid... Know what a Telma is?
It's an electromagnetic brake system used on trucks & buses.
They are normally mounted inline with the propeller shaft.
If you've noticed the bus driver activate braking through a
multiposition stalk near the steering wheel, that's the control stick.

They should be fairly easy to find at appropriate breakers yards.
The nice thing about them is that the braking effect is current
controlled. So they should need only (very) high current drivers
to be directly controlled from a micro. They are also small and
light in proportion to their braking effect.

Einar

--
einarp at ade.no  ( Maserati Biturbo Spyder )