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First recorded activity by BoatBanter: May 2007
Posts: 13,347
Default What do "Jack Plates" do?

Short Wave Sportfishing wrote:
On Fri, 5 Sep 2008 09:04:35 -0700 (PDT),
wrote:

Are they simply to get the engine higher? If so, why not just mount
it higher?


It's a little more complicated than just setting the engine higher (or
lower for that matter) but that is a reason.

Jack plates come in two flavors - fixed mechanical and movable
hydraulic. The fixed mechanical type is used exactly for the reason
you mentioned - to set the engine either higher or lower depending on
needs.

For example, my Ranger bay boat is a 'tweener. The specs call for a
20" shaft, but due to the design of the hull, 20" shaft isn't exactly
correct 22" would be more sufficient.



Well, well, well...a 20" transom on that Ranger. Now isn't *that*
interesting.