We have a project for school where we have to build a solarboat. I have been given the task of designing a propeller. But if I have to believe...
Yes, I'm trying to desing a propeller. And I'm trying to figure out how to calculate the pitch over the lenght of a blade. Because I coundn't find...
I've found a document on the internet where they show how to determine the pitch along the lenght.
But is this the right way to do it?
D = radius...
So correct me if I am wrong.
But I have a diameter of 7.5 inch.
The Disc area would be (pi/4)*7.5^2 = 44.18 square inches.
The expanded area of...
After a whole day of reading and thinking, I still can't figure it out.
I don't know how find out what the expanded area (Ae) is.
To calculate the PSI (formula 5-7 from the propeller handbook) i have to get the Ad.
And to get the Ad (formula 4-7) i need the MWR. But...
Yes, i have a standard B serie.
I am using the book of Dave Gerr to calculate a prop. But it is hard to read the diagram because i have a low Bp value (4,613). it's hard...
And then another question.
In many formulas they ask for the diameter (D).
But is this the maximum diameter that the propeller can be?
I am now reading the book that you recommend to me.
but I still have a question, how do I find out what the velocity of water is.
I think you mean the maximum speed by #1. In that case it is 7.2m/s
The power delivered to the prop is 6.2hp
The shaft rpm is 2200rpm.
Here you can find some info about the races>
Solar Sport One | Innovation of today is energy for tomorrow https://solarsportone.org/
I have towed...
Thank you for your response.
I have much more information.
The boat has already been built. It's a Monohull.
I have a resistance diagram.
I am looking for a propeller for our solar boat.
But I don't know where to start calculating.
I hope one of you can help me out.