On 2006-12-31, Roddy Meatstick.............. wrote:
The vacuum cleaner motor makes just as much noise without the fan
attached to the shaft. It's the cheap motor that makes all the noise. If
they put a geared up induction motor in there it would be a lot quieter.
Why don't they do that?

a vaccum cleaner is supposed to be a portable device.
It'd take 2 guys to carry a 1.2KW induction motor upstairs.

It's much more convenient to install ducted vacuum.

Bye.
Jasen