I have a Maxum 1900 w Mercyry 150 OB-2stroke fro Overeving, what prop could be right?

Mag535

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Apr 4, 2011
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It does 51 mph with a GPS, revs are 5800-5900 with full tank and one on board. With 3 on board it is 5700 revs and 48mph. Prop is mercury alu A15 P21. Speed to plane is good and there is no feeling of lacking power. At 4100rpm I cruise approx 33 mph. I need anyway a spare prop so what could be the right option if steel or aluminium? Or is there any? Would like to get some more top/cruising speed.

I am also planning to instal trimtabs or Smart Tabs. Any experience of those anyone?
thks
Mag
 
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