Hi Tom,
We’ve got the MT 3 blade on our IV with a
normally aspirated IO-550. We have been quite satisfied with this prop as well
as the MT two blade on our 320. The primary advantage to the MT is weight.
I don’t have the numbers in front of me but as best as I can remember the MT was
about 30 lbs lighter than a comparable Hartzell. The other thing I like about
the MTs is that they will govern down to a much higher pitch (lower RPM) than
the Hartzells. This will give you a bit less drag compared to the Hartzell when
the prop control is pulled all the way back in an engine out
situation.
One disadvantage of the MTs is that they need to
be kept painted. The paint right behind the nickel leading edge wears off fairly
easily.
Bill Harrelson
N5ZQ 320 2,150 hrs
N6ZQ IV 350 hrs
Sent: Sunday, August 18, 2013 10:45 AM
Subject: [LML] Propeller for ES
It is finally time to
purchase the propeller for my ES. I have a IO 550N
engine. I searched the
archives and didn't see any thread addressing this but if
I missed it I
apologize for the redundancy.
I would appreciate any input on why the
Hartzell or MT props for this
combination was chosen or other available props
that have been used. Thanks in
advance for your
input.
Tom
N726TW
Blue
Skies,
Tom