troll with a short shaft motor?

1216bandit

Petty Officer 1st Class
Joined
Aug 18, 2008
Messages
214
Dumb question for you, why are long shaft motors preffered for trolling? I have a 19 ft starcraft i/o and an older 9.9 merc short shaft. Is there any reason I cant use that motor? I am guessing that the prop on a short shaft, doesnt extend below the hull but I cant see how that would make much of a differance
 
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