You don't want a traditional propeller on your high tech boat!

ISO Propeller Specifications:

Prop Scan uses the ISO 484/2 International Standard to inspect, report and repair propellers to guarantee repeatable results and improve performance.

I S O   4 8 4 / 2   A c c u r a c y   C l a s s e s
Class Manufacturing Accuracy
S Very High Accuracy
I High Accuracy
II Medium Accuracy
III Wide Tolerance
I S O   4 8 4 / 2   T o l e r a n c e s   o n   P i t c h
Class . S I II III
Local Pitch Pitch of one portion of one blade 1.5% 2% 3% -
Section Pitch Mean pitch of one radii of one blade 1% 1.5% 2% 5%
Blade Pitch Mean pitch of one blade 0.75% 1% 1.5% 4%
Propeller Pitch Mean pitch of all blades 0.5% 0.75% 1% 3%
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