ElectroHydraulics engineer (retired)
what's a dodecimeter? Google didn't help me.<grin mode on>I push people in my lab to use Newton meters for torque and radians per second for speed. At the same time when I am forced to use _metric_ (not SI units) I get ornery and ask for thinks like dodecimeters of stuff.
When I am told _use metric_ and then have to deal with 'pressure' in kg/cm^2, or speed in km/hr my CDO goes haywire (CDO, its kinda like OCD, but the letters are in proper order....)
radians per second is ROTARY speed, not linear; I don't understand your opposition to km/hr unless you just want to use primary units like meters/second ... or cm/sec? I see it now, speed limit something m/sec.
On pressure, would kgf satisfy your opposition, or do you want to get to Newtons/cm^2 ... a derived unit, don't we need Newtons/m^2? Or does cgs sufficiently allow cm^2?
I'm in the control of industrial fluid power world ... we think of bar as the "metric" pressure unit ... ??? and volume is in liters, not m^3 <grin mode off>