I remember this, however it's not the thing I was thinking of... What I remember seeing in book and film was a very large single rotor blade, counterbalanced on the opposite side of the rotor shaft. I don't think it ever flew, it just provided a lot of test data. If anyone knows the make & model of such a thing I'd be grateful. Thanks Matt Mark Huffstutter wrote: > Matt, > I think You are recalling the Hughes XH-17 experimental > Very Heavy Lift helicopter. I have some video of it somewhere.... > > > > > > Regards, > Mark > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist