Blasphemous1

I've come across a helicopter with dual rotors and a tailshaft propeller that I would like to test and maybe get parts for, but I don't have a clue how to identify it... Only marks on it are a QS on the broken bladed. Please forgive me if the names of the parts is incorrect as I know nothing about them. Anyway, I'm trying to check the motor out but need to know what voltage it operates at before I get a bunch of parts for it as it is in bad shape.thanks for any info.
Also... It measure a just over 38 inches (not sure what's missing but I would guess it is supposed to have a body on it(it doesn't). Thanks