Sorry, John, They're right. Basic physics of angular momentum, the two momentum vectors cancel each other out.
John Carmack <[EMAIL PROTECTED]> wrote: > >At 07:10 PM 9/19/2002 -0700, you wrote: >>At 09:01 PM 9/19/2002 -0500, John Carmack wrote: >> >>>With counter rotating blades you won't have any rolling torque, but you >>>will still have a gyroscopic stabilizing effect that will make it resist >>>changes in attitude. >> >> >> Actually, no. The angular momentum of each pair of >>counter-rotating engines cancels out, as long as they are spinning at the >>same rate. There will be slight gyroscopic effects when the two engines of >>a pair are at different throttle levels, but in the flight regime >>contemplated for Gizmocopter, these throttling differences will be slight >>and transient. >> >> -p > >I'm not sure about that. If you have a shaft with two wheels on it, >spinning either wheel either way will provide a gyroscopic "stiffness". >Two spinning wheels, even going opposite directions, should have twice the >stiffness, not none. > >I am far from an expert on gyroscopic effects, so I could be completely >wrong, but I don't think additional rotating masses can't help you do a >"plane change" of a rotating mass, so there is no way to cancel the >gyroscopic stabilization effect. > >John Carmack > >_______________________________________________ >ERPS-list mailing list >[EMAIL PROTECTED] >http://lists.erps.org/mailman/listinfo/erps-list Tony Fredericks "Mind that bus!" Amateur Rocket Scientist "What Bus?" E.R.P.S. Member SPLAT!! - Arnold Rimmer _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
