2 or 3 blade prop?
01-17-2012, 03:14 PM
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2 or 3 blade prop?
doing a gasser.....spe26cc want to use a 3 blade,,,,,,,,,,,,other than 3 blades look cool, is there a reason to try one,,,,,also how do you size a 3 blade as to a 2 blade........thanks for any help
01-17-2012, 05:04 PM
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RE: 2 or 3 blade prop?
Down one size in length and up one size in pitch. The only reason besides the cool factor to go to 3 is ground clearence. You will also notice on landing the plane will slow down faster, almost like having air breaks.
Some people like this feature. I have a couple of 3 blades and I like to fool around with them but I get better performance with a two blade.
Some people like this feature. I have a couple of 3 blades and I like to fool around with them but I get better performance with a two blade.
01-21-2012, 07:33 AM
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RE: 2 or 3 blade prop?
Zinger has some guidelines http://www.zingerpropeller.com/_2_blade_.htm that will give a starting point for experimenting.
Most prop makers have a very limited selection of three or four blade props so you typically have to settle for what's available and hope it works.
Zinger has a modular system where you swap blades for almost any size and pitch. They are expensive and I do not know anyone who has been willing to spend the cash to try them.
Most prop makers have a very limited selection of three or four blade props so you typically have to settle for what's available and hope it works.
Zinger has a modular system where you swap blades for almost any size and pitch. They are expensive and I do not know anyone who has been willing to spend the cash to try them.
