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Apologies for yet another prop question. 

 

I have a '14 Ranger RT178 with the same year Mercury 75 four-stroke. I do about 5500 max RPM and can get close to 40 mph if it's just me and light gear. My motor is mounted in the second set of holes on the transom. 

 

I currently have an aluminum prop (the 'stock' one that came with the motor - I believe a 17P based on the attached image) that I'm looking to replace with a SS, mostly for strength. I'm not looking to set a speed record, so I guess overall efficiency and control are my goals. I do get into some choppy water sometimes, so having the control to navigate back home is still important. Generally, though, as long as performance with the new prop is close to what I have now, consider me happy. 

 

I've asked around - so far I've been recommended a Laser II 20P (dealer), the Spitfire X7 19P (one that the Mercury selector pointed me to and another dealer), and the Trophy Plus 19P. 

 

Just curious what you all would trust on the same boat, or what you're already using if you have the same setup. Thanks! :)

received_1506049049414074.jpeg

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I have a 2015 RT178 with a 75 4-stroke merc too.  I used the factory aluminum prop that came with it all last season and I plan to this season too.  I get about 35 mph out of it but I also have a talon, 3 batteries, and at least 1 other person with me so the weight adds up.  Consider yourself lucky to get 40 mph out of the factory aluminum prop!

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