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Some more interesting tidbits on Prop
parameters
Regarding steps that could be taken after diameter and
pitch parameters are considered for increasing
thrust. Increasing the blade chord or the number of blades.
Both have the effect of increasing the solidity of the propeller disk.
Solidity simply refers to the area of the propeller disk occupied by solid
components (the blades) versus that area open to the air flow. As solidity
increases, a propeller can transfer more power to the air. (provide you have
the power available - otherwise the increased load will diminish the prop/engine
rpm resulting in less power and performance)
While increasing the blade chord is the easier option, it
is less efficient because the aspect ratio of the blades is decreased resulting
in some loss of aerodynamic efficiency.
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