'I don't know about the breakage history, but couldn't agree more
about the wood absorbing the pulses. I flew in a 24 w/175 and a too
short C-R....it was not a happy marraige. I don't know where or why
but there were strange noises/vibes from the engine house when power
pulled back. It wasn't comforting.
The Ranger has a 4 foot long crank and being a 6 inline has a throw
and thus a power pulse every 120 degrees. It's inherantly smooth and
easy to balance combination, unlike a v6 which will never be a
smoothie regardless of vee angle. It is this long crank that twists
and winds tight/loose with the power pulses. As the furthest journal
from the prop transmits it's power thru 5 more throws infront of
it...well there is a deal of flexing going on. The more resistance to
these torsional stresses(metal prop) the more these stresses have to
be dealt with inside the engine.
It would seem that as these engines become more difficult to obtain
correct parts and service for on a dialy basis, that one would not be
inclined to stack any odds against the engine's durability, imagined
or real.
--- In
fairchildclub@yahoogroups.com, "Bob Haas"
wrote:
> Have you ever seen any old pictures of a Ranger powered Aircraft
with a
> Curtis Reed Prop? The US Army tried them and broke many
crankshafts. There
> are plenty
>
> of good wooden props to chose from. The wood props absorb the power
pulses
> from the crank and so last longer.
>
>
>
> _____
>
> From: longmere2 [mailto:longmere@a...]
> Sent: Wednesday, April 13, 2005 12:16 AM
> To:
fairchildclub@yahoogroups.com
> Subject: [fairchildclub] Curtis Reed Propeller
>
>
>
>
> Is anyone using a Curtis Reed propeller on their Ranger 200 hp
engine
> on the Fairchild 24? I have received some conflicting reports and
> comments on the benefits or detractions on using this propeller.
Any
> comments? Is there a benefit of wood over metal propeller?
>
>
>
>
>
>
> _____
>
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>
>
> [Non-text portions of this message have been removed]
'