Another Rev 4 question
#1
Registered
Thread Starter
Another Rev 4 question
So I read somewhere on OSO something to the effect that a Revolution 4 Prop may have greater pitch compared to a Bravo 1. Maybe what they were trying to say is that RPM will be lower running a Rev 4 compared to a Bravo 1 of the same pitch. Not sure why this would be unless rev 4 has greater surface area/cupping?
Asking because i want to give the Rev 4 another try. I am currently running a Bravo 1 24p and can spin it up to 4800rpm. I have a line on a 23p Rev 4 and I would expect that I would get a slight increase in RPM with the decrease in pitch but not sure. There's nothing particularly wrong with the Bravo 1 other than some porpoising.
Asking because i want to give the Rev 4 another try. I am currently running a Bravo 1 24p and can spin it up to 4800rpm. I have a line on a 23p Rev 4 and I would expect that I would get a slight increase in RPM with the decrease in pitch but not sure. There's nothing particularly wrong with the Bravo 1 other than some porpoising.
#3
So I read somewhere on OSO something to the effect that a Revolution 4 Prop may have greater pitch compared to a Bravo 1. Maybe what they were trying to say is that RPM will be lower running a Rev 4 compared to a Bravo 1 of the same pitch. Not sure why this would be unless rev 4 has greater surface area/cupping?
Asking because i want to give the Rev 4 another try. I am currently running a Bravo 1 24p and can spin it up to 4800rpm. I have a line on a 23p Rev 4 and I would expect that I would get a slight increase in RPM with the decrease in pitch but not sure. There's nothing particularly wrong with the Bravo 1 other than some porpoising.
Asking because i want to give the Rev 4 another try. I am currently running a Bravo 1 24p and can spin it up to 4800rpm. I have a line on a 23p Rev 4 and I would expect that I would get a slight increase in RPM with the decrease in pitch but not sure. There's nothing particularly wrong with the Bravo 1 other than some porpoising.
A 19" Rev 4 will pull the same MPH as a 21" Mirage or Laser II at the same rpm. Basically the slip is significantly less.
For your application I'd go from a 24" Bravo to a 21" Rev 4 and see how it goes. They require some torque to spin and you will notice it going into gear.
#4
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Bravo 1's are about a inch lower in pitch than marked. However they are 3/8" bigger in diameter than the Rev 4. B1's are only 15" although advertised at 15.25").
Each prop has its merits for sure. Some are.....B1's respond to Lab work better and Rev 4' have more trim reaction out of the box.
There's a lot more to the story as well.
Brett
Each prop has its merits for sure. Some are.....B1's respond to Lab work better and Rev 4' have more trim reaction out of the box.
There's a lot more to the story as well.
Brett
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]