| PowerTech!
Stainless Steel Propellers are cast
in one integral piece in a ceramic mold.
This process is used by all motor manufacturers
as well as a few leading propeller manufacturers.
The extra expense is well worth the
outlay compared to the cheaper "weld-on
blade" process.
In
the weld-on blade process, blades are
manually placed against the round cylinder
barrel and welded in place. Errors in
blade placement and welding "heat
draws" can result in inconsistent
pitch, rake and dynamic balance. Additionally,
a welded joint is more prone to breaking
under peak loads. |