REFLECTOR:MT Prop went missing

[hoffman3@erols.com]

I think the MT prop in question was on an XL with an IO-540 6 banger. I
don't think harmonics was the problem. The MT hub on the 360 and the 540
are different.

Carl Hoffman



Original Message:
-----------------
From:  HYTEC45@aol.com
Date: Mon, 5 Apr 2004 10:35:36 EDT
To: reflector@tvbf.org
Subject: Re: REFLECTOR:MT Prop went missing


After looking at the picts Dave saved. I think your problem was due to 
harmonic fatigue.  The location of the SS breaks coincide EXACTLY with the
location 
that my SS leading edge cracked due to the same.  That of course caused the 
RPM restriction on IO360 w/o counterweights thing.  I caught the crack as
it was 
developing, but it was in the exact place.  Once you crack the SS through 
even though it's still attached to the wood blade, you now have a weight
free to 
move the blade tip.  I think mt has bigger problems then just 
non-counterweighted 4 bangers.  

As far as I am concerned, mt has poor customer support. The Germans HATE
to, 
and will not even consider they have a piece of s%&*t in a Velocity prop. 
I 
have been through too many problems and still am with mt.  Last being after
my 
prop came back from the blade replacement due to harmonic failure (four
month 
down in which Andrew @mt argued that it was not a failure because the blade 
did not separate, and mt never has had a blade separate), I was told the
hub 
needed to be modified because it was worn (after 180hrs) and will start
leaking 
grease if I don't.  O.K.; it hasen't leaked yet, but we will.  Upon return,
the 
hub immediately begun leaking grease like a sive.  mt would not pay for 
repair (do it right), or shipping, so I pitched a fit, and they finally
paid for 
the labor, and half of the shipping (thanks a lot Eric).  Upon return the
second 
time, it again begun immediately began leaking grease, and they won't even 
return my e-mails now(thanks again mt).

The Hoffman on my hanger neighbor's cozy (O-360) that does not have a rpm 
restriction has a much stronger looking blade.  Where ours tapers to under
.125 
thick at the tip, the Hoffman is over .312 at the tip and much wider. 
Almost 
paddle looking.  A Defiant on our field has had Hoffmans for some time, and 
although they have seen some debris through them, and stored outdoors, they
still 
look stout.

Hate to bitch without any constructive ideas, but I don't have any except
we 
need a replacement for mt.  Even though the Hoffman is about 2K more than
the 
mt, in my case, I would of saved many time over that in the way of time, 
money, shipping and down time if the problems were not there.  I don't have
a 
Hoffman, so I don't know if Hoffman dosen't have there own problems.

TEC


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