Hobbyking Skipper Cowl (improved)

Update 3: I've tidied up some of the edges with blends, and put chamfers on the exhaust ducts. This is "Cowl17" I've also moved it to here because the previous version wasn't showing up in searches or my design list due to the usual Thingiverse bumbling ineptitude (original version was https://www.thingiverse.com/thing:4773625).

UPDATE 2: I've added a second version of this cowl which incorporates an additional cooling exhaust at the bottom that also provides a water drain. I think the first design looks cleaner, but if you operate from water this might be a better alternative. I'll add some photos of this design later.

UPDATE: I've added a sketch showing extra slicer settings needed to print this cowl. The reason relates to the way I drafted it and my lack of SolidWorks user skills. Fuller explanation in the print settings section.

This is my improved version of the cowling for the HK skipper which is redesigned to force cooling air through the core of the motor (where the he