Tundrawolf Posted July 11, 2019 Share Posted July 11, 2019 So in studying 2 stroke engine design I found out that most paramotors are not direct-drive but rely on a reduction pulley and centrifugal clutch. But in studying pictures, I discovered the stem that the entire propeller/secondary assembly rides on... Is just a mere tab molded into the crankcase. I couldn;t believe my eyes when I saw that... Hundreds of pounds of thrust, prop strikes, axial load, radial load, it's literally moving the entire setup... And it's just a small metal tab. Am I missing something? I circled the tab in black in the picture. SO this tab supports the weight and thrust of the prop entirely? If it were me there would be a through-shaft supported on the other side as a minimum, and even that would be frighteningly under engineered to me... But one tab?! I mean, obviously props aren't falling out of the sky, but... Just the one tab? I really need to understand this... Thank you! Quote Link to comment Share on other sites More sharing options...
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