Not only those points Rob but the effect of braking a flywheel is SPECTACULAR!
I know of a kart tuning firm who built their own interia-dyno (as you know, it was a huge steel wheel with similar acceleration properties [e.g., mass) to a kart and driver).
It was built into a steel cage which was bolted to the floor. It had a 'brake' for emergencies. When they applied the brake a bit TOO fiercely, the change in rotational mass was SO huge that it ripped itself CLEAN out of the concrete floor andthen the WHOLE machine SPUN bouncing on the floor until it ran forwards and hit the WALL! And that's only on a 100cc KART engine's output! With a potential of 400 kilo joulers..... the effect just BEGGARS the imagination!
Luckily, there was no one in front of the machine or else......
The heat dissipation is one thing but if the accident has 'shortened' the chassis, the LAST thing you'd want to do is to apply a BRAKE to the KERS flywheel!
Ian
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