I have noticed recently that some relatively old posts have been
appearing in my in-box but at 6 years, this one must hold the record?
Bill
On 20/09/2005 6:38 AM, Wayne G. O'Shea wrote:
It's not rumour Bob. I talked with Stewart B...(Steve Rhodes used Stewarts
paint booth for his near complete Moose) and YES the MT went into full beta.
They figured it out on approach and pulled the power...but couldnt' make the
field.
Wayne
----- Original Message -----
From: "Bob Patterson"<beep@sympatico.ca>
To:<rebel-builders@dcsol.com>
Sent: Monday, September 19, 2005 2:36 PM
Subject: Moose -Alaska crash ...
....Hi All !
This subject came up at the Builders Meeting. I reported that
I had heard from someone who spoke to the people who were on the scene and
involved - not exactly first-hand info, but I believe it to be accurateDon't want to spread even more rumours than we've already
heard, but this info might save someone from misfortune ! Please,
if there's anyone out there with experience with this problem,
please speak up !!
What they said was " It seems the M-T 3 blade prop went into
full Beta pitch (reverse !!) at 500 feet on approach -- AND, this
is not the first time this problem has been observed with the M-T
3 blade on the M-14P engine. Seems there's something to do with
the power pulses of the M-14 that messes up the prop controls."
I know there are thousands of these props out there, many
on M-14's -- but how many have Beta capability ?? From the pictures,
it sure looked like that Moose hit hard - and that would explain it !
About the only thing you could do would be to cut the engine and push
the nose down - IF you figured out what was happening quickly enough,
AND you had some extra altitude ! Full Beta would take airspeed, and
give tremendous drag, preventing acceleration, even lowering the nose.
Fortunately, the airframe did what it was designed to do, and crumpled
progressively, and everyone walked away without a scratch !
Again, I'm not passing this on to stir things up - but I'm sure
anyone with an M-T with Beta would really like to hear from any others who
might have had any kind of difficulty like this ! I hope there's some
easy fix !
......bobp
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