simplex1
Ejection Handle Pulled
- Joined
- May 22, 2014
- Messages
- 90
- Display Name
Display name:
simplex1
About designing an efficient propeller
Can I really design an efficient propeller by following this theory:
"One can reason that a propeller could be regarded as a rotary wing in which the lift being generated becomes the thrust that moves the aircraft forward. Knowing the number of revolutions per minute at which the propeller would be turning, the speed at which the blade would be moving can be calculated at any point along its length and an appropriate airfoil from a table, developed during wind tunnel tests, can be selected."
Can I simply choose from a table the best possible airfoil (and attack angle) for a certain speed and, knowing the speed distribution of the cross sections in a propeller, stack together these selected airfoils and obtain a highly efficient propeller?
Can I really design an efficient propeller by following this theory:
"One can reason that a propeller could be regarded as a rotary wing in which the lift being generated becomes the thrust that moves the aircraft forward. Knowing the number of revolutions per minute at which the propeller would be turning, the speed at which the blade would be moving can be calculated at any point along its length and an appropriate airfoil from a table, developed during wind tunnel tests, can be selected."
Can I simply choose from a table the best possible airfoil (and attack angle) for a certain speed and, knowing the speed distribution of the cross sections in a propeller, stack together these selected airfoils and obtain a highly efficient propeller?