Originally Posted by pvanv1
Yes indeed. the 4-blade HT props work great on sailboats (I have one on my HR-28 with Nissan 9.8A3). Depending on which Merc 9.9 you have (modern ones are actually Tohatsu/Nissan 9.8 motors), you can use the Tohatsu (Solas) HT prop very effectively. You can drop me an email at the office: firstname.lastname@example.org
, and I'll be happy to help you.
My engine is a 2010, so sounds like it would work. Thanks, will email you.