The subject of US WO/CWO was beaten into submission on ARRSE some years ago, contributed to vigorously by a WO who went strangely silent after a while at Fort Rucker. Sadly missed on that Forum ... he was desperately funny/inept.
Any idea of BritMil fully grasping the US CWO concept is challenging, although chinook240 quotes accurately and usefully. I had a friend who went from being a regular Lt Col to CWO in the National Guard. You have to know them to understand it.
It's a bit like RAF Specialist Aircrew, without the full Queen's Commission. They're there for their special skills, but without the broad 'command' responsibilities and career progression.
"I only want to fly aircraft, stuff the rest of the bulls***." Does that have any RAF resonance?