WIP... New version at post #5.
2 YouTube Lego helicopter realistic roter head swashplate LDD cyclic & collective sim 4 by Nachapon S., on Flickr
YouTube Lego helicopter realistic roter head swashplate LDD cyclic & collective sim by Nachapon S., on Flickr
YouTube Lego helicopter realistic roter head swashplate LDD cyclic & collective sim official 9396 lxf by P4trickvH by Nachapon S., on Flickr