Contra Rotating Propellers using Six Helical Gears

[@brianb-p6586]

The Rolls Royce Griffon gearbox is similar, but a more clever variation that uses one less gear: it has a single idler gear replacing the driven and driving pinions (shown in yellow in this model) on the countershaft.

[@brianb-p6586]

Here's that variation: _Contra Rotating Propellers using Five Helical Gears_ kzbin.info/www/bejne/pGOnepKko692odU

[@xlmachines120]

There are many possible configurations to achieve contra rotating systems. You can see other contra rotating propeller designs here Rolls Royce Griffon gear box model Five Helical Gear Contra Propeller 5 Blade - 3D Animation kzbin.info/www/bejne/pGOnepKko692odU Six Helical Gear Contra Propeller 3 Blade - 3D Animation kzbin.info/www/bejne/d5aadX-Cl7CGpbc Bevel Gear Contra Rotating Propeller 2 Blade - 3D Animation kzbin.info/www/bejne/mmTFkIqAecR1rNU

[@benstone5650]

Awesome!

[@xlmachines120]

Thanks!

[@polka23dot70]

Nobody needs background music.