Visual, practical and acoustic down sides: The outboard motor protruding in the stern can be perceived as an aesthetic flaw. It will also be a nuisance as it protrudes in to the stern area - it is not possible to jump into the drinking water with the aft bathing platform. https://buyfakedriverlicenseonlin95044.p2blogs.com/36693301/an-unbiased-view-of-used-boat-motors 
