Lego Technic Model 42057 Ultralight Helicopter Complete 2017 No Box or Manual | eBay
Lego Technic 42057 Ultralight Helicopter Set Builds Experimental Aircraft Only | eBay
My alternative build for 42057. Extra pieces created into an articulated stand +13LMU high (inspired by Emmet's Thricycle stand in 70823) and 3 different fueling pumps are not shown. 3 pieces from