Shaft Passage Holes In Rudders

BillD

Admiral
Joined
Sep 1, 2011
Posts
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Location
Portsmouth NH, boating out of the mighty Merrimack
Boat Make
25 Terry Jason with Cummins 370 power
Curious,

I've noticed that some DE boats have a hole cut through the rudder to facilitate "easier" shaft removal.

I've seen holes uncovered and with zincs over the holes.

My question is does a "hole through the rudder" open or closed have any major negative effect in steering, speed performance, vibration, anything , etc. ????

Thanks, Bill D
 
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