Like I said, definietely not in the R22 as it's prohibited by the POH. Though having said that I know of FAA DPE's who demo low g and recovery from the resultant roll in an R22.
I taught low g in a very structured training environment in a fully articulated rotor system where mast bumping is not the hazard it is in a semi rigid rotor head.
It is a safe excercise when carried out correctly. I'm not advocating people go out and start getting weightless in R22's. There is no need to run a mile at the mere mention of low g.
At the end of the day you have to trust a student. You show them engine off landings, forced landings and hover autos and they aren't supposed to practice them solo. When I was instructing I never heard of a student of mine performing an EOL after practising them with me. By demostrating the effect it demystifies low g and in my experience they are usually so uncomfortable with the feeling they wouldn't want to try it again.
You don't have to treat students like naughty children, they are after all adults. If you suspect you have a student that will go out and try things you have told them they shouldn't then its time for a serious chat and possibly a gentle push towards the door.
Case in point. A student of mine after a boring session of droning round perfecting circuits asked me "When can we go and land in the hills and woods like I used to with my last instructor"....Would you send this one solo for the next flight? He left and never came back.
Gov
[This message has been edited by The Governor (edited 26 April 2001).]