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post #14 of Old 05-19-2013
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Re: Prop size for 4-107

Originally Posted by bobperry View Post
What you have now is what we call a "square prop" i.e. diameter and pitch the same and they seldom work well.
There's an interesting point. The same thing applies to engine bore & stroke ratios - when they are the same it is also called a "square" engine and it seldom works well either.

I understand that sail plans where the area is equally split between main & jib ("square"?) also don't generally work well.

Any math wizards here who can explain this curiosity?

I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
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