[isidrom]

Que no , que no se trata de modificar diámetro.

Se trata de darle o quitarle un paso o dos a una hélice, manteniendo el diámetro.

Eso es lo que es muy habitual en los EEUU .

Sacado de la web de Michigan proppelers , uno de los mayores fabricantes de USA :

How much can you change the propeller pitch for an existing propeller?

In general, Michigan Wheel suggests the original design pitch be changed no more than 2”, either increased or decreased. The actual amount will depend upon the original propeller’s size, design, and material plus the ability of the shop performing the pitch adjustment. If excessive adjustments are attempted, it is possible to develop adverse stresses in the propeller blades that could impact the durability of the propeller. In addition, the efficiency of the propeller may be reduced.