ORIGINAL: wings
I have tried several props and found that a 10 x 6 is pretty good.
Now, if I went to a 11 x 6 would I get more thrust same speed?
More thrust more speed?
What would change?
I understand larger pitch is faster speed and larger diameter is more thrust.
When you start changing diameter and pitch at the same time, I get confused.
Wings,
11x6 will turn slower than a 10x6. For example, the 10x6 will turn at 15krpm, and the 11x6 at 12krpm, Thus, theoretically, you loose 3k x 6 inches per minute in speed... which is 45k cm per minute, which is 27km/h. Thus, you will lose 27km/h top speed by going from a 10x6 to an 11x6 (theoretically).
You will get a more efficient prop though, so your thrust will probably be more with an 11x6. Your plane will be more responsive, accellerate faster, slow down faster, and be able to do better torque-rolls .... ;-)
At some point though, if your prop diameter gets too big, two things will happen:
1. Your prop will hit the ground....
2. Your engine will not be ale to turn it fast enough to be efficient.
So, play around, and find out what your flying style like to have n the nose. Typically, stick with the ange of props suggested in the manual. The Big Diameter, small pitch prop will give you agility, the small diameter large pitch one will give you speed.
gus