In the 1950s and 60s, flywheels were used on buses in Switzerland, but they were heavy, prone to explosive failure and had no way of compensating for the angular momentum that made turning difficult. Composites have played a large part in solving these issues
The people who are into serious downhill "kart" racing use flywheels for braking, as that way they don't throw away the kinetic energy they've acquired.
If you're looking at kinetic storage, JET uses two large flywheels as the grid (then the CEGB ?) wouldn't allow them to draw the very large pulses of power needed to generate the toroidal field.
Very large fly wheel storage systems have to take the rotation of the earth into account as this will cause a gyro to precess. This can create a lot of force on the bearings. Only if the axis of the gyro is parallel to the axis of the earth's rotation will there be no ( or negligible precessive ) forces,.
There is a 50 minute lecture about gyros and precession effect at
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local