I am not sure. I know there are some very lightweight single person 'home made' helicopters, out there. But even this very small helicopter seems to use a multiple cylinder engine(s) kzbin.info/www/bejne/eJ_TkmOJmtuEgqM
@MrRusty791110 жыл бұрын
That's a great looking piston cross-section, I love the attention to detail on the cylinder head.