Skybolt Fuselage - Propellor

[Jan]

I need a CS prop for my IO-390 215 hp engine. My questions to the learned gentlemen are:

1. I have been told that a larger diameter prop gives better climb performance
2. With top longeron horizontal what clearance is recommended from ground to prop
3. What are the relative merits of two blade versus three blade
4. Aluminium (say Hartzell) versus composite (say Whirlwind)

Many thanks. Jan.

 

[planebuilder]

 

[Jan]

 

[planebuilder]

 

[Jan]

 

[Dogismycopilot]

 

[Jan]