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4 bladed Spitfire prop...
Posted: Tue Apr 16, 2013 4:24 am
by justrfb
Any person here have experience or an opinion on the Mercury Spitfire 4 bladed prop? I have a new to us, 20' toon with a Merc 4 stroke 75 on the back. When we were out Sunday, it seem to have no issue spinning the 3 bladed 11" pitch prop currently on there. Easily went to "red line" 6K, running about 22-23 MPH. I am thinking about going to the 4 bladed Spitfire with a little more pitch on it. Thanks for your answer.
Sincerely,
Rich
Re: 4 bladed Spitfire prop...
Posted: Tue Apr 16, 2013 8:27 am
by smoker62
I have two that I run depending on load and if I am not too lazy to swap. Goes against the norm of a 4 blade not being great for pontoons but I was told these were designed with this in mind. I love mine. My stock 3 blade wasnt bad but these are better.
Re: 4 bladed Spitfire prop...
Posted: Tue Apr 16, 2013 9:42 am
by speedklz
How are the props figured.. say I have a 25footer with a 90 horse evinrude at a certain RPM how do you figure which props will work and whats better?
Re: 4 bladed Spitfire prop...
Posted: Tue Apr 16, 2013 10:14 am
by smoker62
Talk to a qualified prop guy . Most good ones can put you spot on once they know your specs. I use Ricky at Brainerd props. I have purchased numerous props from him for my Alumacraft with a 75 tiller and my ranger with a 250 v-rod. He knows his stuff.
Re: 4 bladed Spitfire prop...
Posted: Thu Apr 18, 2013 4:19 am
by justrfb
Hello and thank you for your help, information and suggestions. I appreciate it. I will be ordering our prop soon...
Sincerely,
Rich